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Phil R. Cummins - One of the best experts on this subject based on the ideXlab platform.
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Direct-seismogram inversion for receiver-Side Structure with unknown source-time functions
2015Co-Authors: Jan Dettmer, Stan E. Dosso, Thomas Bodin, Josip Stipcevic, Phil R. CumminsAbstract:Jan Dettmer,1,2 Stan E. Dosso,1 Thomas Bodin,3,4 Josip Stipcevic2,5 and Phil R. Cummins2 1School of Earth and Ocean Sciences, University of Victoria, Victoria BC, Canada. E-mail: jand@uvic.ca 2Research School of Earth Sciences, Australian National University, Canberra ACT, Australia 3Berkeley Seismological Laboratory, 215 McCone Hall, UC Berkeley, Berkeley CA 94720-4760, USA 4Laboratoire de Geologie de Lyon, Ecole Normale Superieure de Lyon, Universite de Lyon-1, CNRS, F-69364 Lyon Cedex 07, France 5Department of Geophysics, Faculty of Science, University of Zagreb, Zagreb, Croatia
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Direct-seismogram inversion for receiver-Side Structure with uncertain source-time functions
Geophysical Journal International, 2015Co-Authors: Jan Dettmer, Stan E. Dosso, Thomas Bodin, Josip Stipcevic, Phil R. CumminsAbstract:This paper presents direct-seismogram inversion (DSI) for receiver-Side Structure which treats the source signal incident from below (the effective source-time function-STF) as a vector of unknown parameters in a Bayesian framework. As a result, the DSI method developed here does not require deconvolution by observed seismogram components as typically applied in receiver-function inversion and avoids the problematic issue of choosing subjective tuning parameters in this deconvolution. This results in more meaningful inversion results and uncertainty estimation compared to classic receiver-function inversion. A rigorous derivation is presented of the likelihood function required for unbiased inversion results. The STF is efficiently inferred by a maximum-likelihood closed-form expression that does not require deconvolution by noisy waveforms. Rather, deconvolution is only by predicted impulse responses for the unknown environment (conSidered to be a 1-D, horizontally stratified medium). For a given realization of the parameter vector which describes the medium below the station, data predictions are computed as the convolution of the impulse response and the maximum-likelihood source estimate for that medium. Therefore, the assumption of a Gaussian pulse with specified parameters, typical for the prediction of receiver functions, is not required. Directly inverting seismogram components has important consequences for the noise on the data. Since the signal processing does not require filtering and deconvolution, data errors are less correlated and more straightforward to model than those for receiver functions. This results in better inversion results (parameter values and uncertainties), since assumptions made in the derivation of the likelihood function are more likely to be met by the inversion process. The DSI method is demonstrated for simulated waveforms and then applied to data for station Hyderabad on the Indian craton. The measured data are inverted with both the new DSI and traditional receiver-function inversion. All inversions are carried out for a trans-dimensional model that treats the number of layers in the model as unknown. Results for DSI are consistent with previous studies for the same location. The DSI has clear advantages in trans-dimensional inversion. Uncertainty estimates appear more realistic (larger) in both model complexity (number of layers) and in terms of seismic velocity profiles. Receiver-function inversion results in more complex profiles (highly-layered Structure) and suggests unreasonably small uncertainties. This effect is likely also significant when the parametrization is conSidered to be fixed but exacerbated for the trans-dimensional model: If hierarchical errors are poorly estimated, trans-dimensional models overestimate the Structure which produces unfavourable results for the receiver-function inversion.
Thomas Bodin - One of the best experts on this subject based on the ideXlab platform.
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An optimal transport approach to linearized inversion of receiver functions
Geophysical Journal International, 2019Co-Authors: Navid Hedjazian, Thomas Bodin, Ludovic MétivierAbstract:Receiver function analysis is widely used to make quantitative inferences about the Structure below a seismic station. As these observables are mainly sensitive to traveltimes of phases converted and reflected at seismic discontinuities, the resulting inverse problem is highly non-linear, the solution non-unique, and there are strong trade-offs between the depth of discontinuities and absolute velocities. To overcome this difficulty, we propose to measure the misfit between the predicted and observed data with an optimal transport distance instead of the conventional least-squares distance, a strategy that has shown its assets in the context of full waveform inversion. This approach views a seismogram as a distribution of ‘mass’. The optimal transport distance between two waveforms is the minimal cost of transporting one waveform onto the other. We test the optimal transport approach on the inversion of a radial P-wave receiver function. We also show how it can be applied to measure the cross-convolution distance between the radial and vertical components, thus avoiding the need for deconvolution associated with the calculation of the receiver function. The resulting misfit function is minimized with a local optimization algorithm to constrain the receiver-Side Structure. The benefits of this methodology are studied in simple synthetic tests and with real data. In particular, we show that with its increased sensibility to time-shifts, the optimal transport distance reduces the number of local minima in the misfit function, which, in the case of a linearized inversion, significantly reduces the dependency to the starting model and results in a better convergence towards the solution model. A joint inversion of the P-wave receiver function and surface wave dispersion curves is performed at the Hyderabad station in India.
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Direct-seismogram inversion for receiver-Side Structure with unknown source-time functions
2015Co-Authors: Jan Dettmer, Stan E. Dosso, Thomas Bodin, Josip Stipcevic, Phil R. CumminsAbstract:Jan Dettmer,1,2 Stan E. Dosso,1 Thomas Bodin,3,4 Josip Stipcevic2,5 and Phil R. Cummins2 1School of Earth and Ocean Sciences, University of Victoria, Victoria BC, Canada. E-mail: jand@uvic.ca 2Research School of Earth Sciences, Australian National University, Canberra ACT, Australia 3Berkeley Seismological Laboratory, 215 McCone Hall, UC Berkeley, Berkeley CA 94720-4760, USA 4Laboratoire de Geologie de Lyon, Ecole Normale Superieure de Lyon, Universite de Lyon-1, CNRS, F-69364 Lyon Cedex 07, France 5Department of Geophysics, Faculty of Science, University of Zagreb, Zagreb, Croatia
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Direct-seismogram inversion for receiver-Side Structure with uncertain source-time functions
Geophysical Journal International, 2015Co-Authors: Jan Dettmer, Stan E. Dosso, Thomas Bodin, Josip Stipcevic, Phil R. CumminsAbstract:This paper presents direct-seismogram inversion (DSI) for receiver-Side Structure which treats the source signal incident from below (the effective source-time function-STF) as a vector of unknown parameters in a Bayesian framework. As a result, the DSI method developed here does not require deconvolution by observed seismogram components as typically applied in receiver-function inversion and avoids the problematic issue of choosing subjective tuning parameters in this deconvolution. This results in more meaningful inversion results and uncertainty estimation compared to classic receiver-function inversion. A rigorous derivation is presented of the likelihood function required for unbiased inversion results. The STF is efficiently inferred by a maximum-likelihood closed-form expression that does not require deconvolution by noisy waveforms. Rather, deconvolution is only by predicted impulse responses for the unknown environment (conSidered to be a 1-D, horizontally stratified medium). For a given realization of the parameter vector which describes the medium below the station, data predictions are computed as the convolution of the impulse response and the maximum-likelihood source estimate for that medium. Therefore, the assumption of a Gaussian pulse with specified parameters, typical for the prediction of receiver functions, is not required. Directly inverting seismogram components has important consequences for the noise on the data. Since the signal processing does not require filtering and deconvolution, data errors are less correlated and more straightforward to model than those for receiver functions. This results in better inversion results (parameter values and uncertainties), since assumptions made in the derivation of the likelihood function are more likely to be met by the inversion process. The DSI method is demonstrated for simulated waveforms and then applied to data for station Hyderabad on the Indian craton. The measured data are inverted with both the new DSI and traditional receiver-function inversion. All inversions are carried out for a trans-dimensional model that treats the number of layers in the model as unknown. Results for DSI are consistent with previous studies for the same location. The DSI has clear advantages in trans-dimensional inversion. Uncertainty estimates appear more realistic (larger) in both model complexity (number of layers) and in terms of seismic velocity profiles. Receiver-function inversion results in more complex profiles (highly-layered Structure) and suggests unreasonably small uncertainties. This effect is likely also significant when the parametrization is conSidered to be fixed but exacerbated for the trans-dimensional model: If hierarchical errors are poorly estimated, trans-dimensional models overestimate the Structure which produces unfavourable results for the receiver-function inversion.
Aditya Rio Prabowo - One of the best experts on this subject based on the ideXlab platform.
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Progressive structural failure of the RoRo Side hull during accidental powered-bow collisions
2018Co-Authors: Aditya Rio Prabowo, Bangun Ir Harsritanto, Jung Min Sohn, Aldias Bahatmaka, Samuel SamuelAbstract:Contact phenomena can be advantageous in several activities, such as material forming for a hull plate of a ship in shipbuilding. However in ocean engineering and marine Structure, sometimes contact cannot be controlled and produces an impact which causes immense casualties for ship, crew, cargo and sea environment. Collision appears as the most common impact form which its influence to destruction of a sea environment has been acknowledged. In this study, a concern is addressed to a structural observation under a ship collision. A Side Structure of a passenger ship is modelled to be the target ship while the other ship so called the striking ship is deployed as an indenter to penetrate the target ship. Results indicate that the interactions in contact process involve not only the upper deck but also the bulbous bow of the striking ship. Load and draught height of the striking ship can change which lead to a change of impact target and deformation on the target ship. Finally, the confirmation of energy that is used to destroy the struck ship is summarized.Contact phenomena can be advantageous in several activities, such as material forming for a hull plate of a ship in shipbuilding. However in ocean engineering and marine Structure, sometimes contact cannot be controlled and produces an impact which causes immense casualties for ship, crew, cargo and sea environment. Collision appears as the most common impact form which its influence to destruction of a sea environment has been acknowledged. In this study, a concern is addressed to a structural observation under a ship collision. A Side Structure of a passenger ship is modelled to be the target ship while the other ship so called the striking ship is deployed as an indenter to penetrate the target ship. Results indicate that the interactions in contact process involve not only the upper deck but also the bulbous bow of the striking ship. Load and draught height of the striking ship can change which lead to a change of impact target and deformation on the target ship. Finally, the confirmation of energy th...
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Nonlinear analysis of inter-island RoRo under impact: effects of selected collision’s parameters on the crashworthy double-Side Structures
Journal of the Brazilian Society of Mechanical Sciences and Engineering, 2018Co-Authors: Aditya Rio Prabowo, Teguh Muttaqie, Jung Min SohnAbstract:The purpose of this paper is to study the effect of selected parameters in ship collision and extend it to assessment of structural crashworthiness on the double-Side Structure (DSS). A brief concept and implementation of the ship–ship interaction is presented in early discussion, which is followed by fundamental factors in numerical calculation. Initial analysis is addressed to quantify influence of several element formulations types on damage extent and simulation time. According to comparison with certain RoRo collision incident data, the fully integrated version of the Belytschko–Tsay emerges as the most similar in terms of the damage criterion of analysis. Even though ordinary type of the Belytschko–Tsay produces faster time processing, fully integrated version is still chosen as it can prevent undesired phenomena during nonlinear finite element analysis. The next analysis aims to conduct crashworthiness assessment on several regions of the target ship. Collision location and attacking velocity are determined as representative of the external dynamic parameters, while material grade is conSidered as the internal parameter. Assessment results of the DSS are presented in forms of the statistical calculation to obtain variance percentage, and failure sequence to understand crushing process during Side collision. Result tendency indicates that the velocity is nominated as the most influencing parameters to the crashworthiness criteria of the target ship.
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On the failure behaviour to striking bow penetration of impacted marine-steel Structures
Curved and Layered Structures, 2018Co-Authors: Aditya Rio Prabowo, Teguh Muttaqie, Jung Min Sohn, Agus SetiyawanAbstract:Abstract Demands for water transportation modes are continuously increasing as rapid economic and industrial growths in the recent decade. Ship as representative of the water transportation is generally needed to carry various products from one location to another. BeSides as product carrier, ship also acts as public facility to transport human across islands for number of reasons, such as tourism and vehicle. ConSidering its importance, structural damage due to accidental loads or so-called impact can cause unacceptable casualties which threat ship passenger, shipping industry and maritime environment in same time. The most frequent impact phenomena occur in forms of collision and grounding, which are targeting Side Structure and double bottom consecutively. However, since responses of the impacts on Structure are highly nonlinear and vary due to development of ship Structures, sustainable analysis as an update of pioneer calculation can be beneficial as rational reference for improving safety and navigational instruments. This work aims to assess failures of the Side Structures subjected to penetration of striking bow in ship-ship collision scenario. Locations of impact are idealized to happen on after-end, midsection and fore-end to provide complete assessment. Striking bow is to be deployed by varying input velocity to observe significance of the fractures on the Side Structure. This configuration is implemented on the designed collision scenario, and later calculated using nonlinear finite element method (NLFEM). Summary of the solution indicated that the midsection produced the highest resistance against Side collision. Breaching of the inner shell was successfully avoided on the fore-end, but the critical damage to the cargo was observed during bow penetration to the after-end region. This location was recommended to be added by longitudinal framing to increase its resistance against ship collision.
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Performance assessment on a variety of double Side Structure during collision interaction with other ship
Curved and Layered Structures, 2017Co-Authors: Aditya Rio Prabowo, Jung Min SohnAbstract:Abstract The main goal of the present paper was to study the physical response of a double Side skin (DSS) Structure under impact load in a collision event between two ships. Collision energy and damage extent (size and location) during the collision process were observed together with damage patterns on Side Structure. The ships were modeled after a Ro-Ro passenger ship and cargo reefer which were involved in a ship collision on the Sunda Strait while the analyseswere performed using non-linear simulations FEMto produce virtual simulation data. Several caseswere proposed to be investigated in this work with involvement of parameters i.e. penetration location and ship materials which were embedded on the Structure model. A series of material experiments and testing was conducted to obtain detailed material properties which were to be deployed in simulation. It was shown that, after penetration at the transition location, the striking ship was successfully deforming and forming tears to the inner skin. On the other hand, with identical Structure and identical mass of construction, the use of high-strength low-alloy (HSLA) steel as the repair material offered conSiderably better capacity in absorbing the impact load than plain-carbon steel.
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Analysis of structural damage on the struck ship under Side collision scenario
alexandria engineering journal, 2017Co-Authors: Aditya Rio Prabowo, Jung Min Sohn, Ahmad Fauzan Zakki, Qing WangAbstract:Abstract The occurrence of impact needs to be predicted for various cases as it mostly delivers negative to target object and environment. In marine Structure, this phenomenon has distributed numerous damages to involved objects, such as can be found in tragedy of the Estonia in 1994. This disaster led to a reassessment of the safety of passenger ships in many country. During impact both of structural and material aspects contributes to responses in form of energy, force, and damage. In present work, conSideration of the both aspects would be conSidered in preparation, analysis, and discussion, to evaluate contribution of conSidered aspects on failure characteristic. A target subjected to impact load in form of collision so called struck ship which had different hull configuration would be used in analysis as structural behaviour during and after hull Structure of the struck ship was penetrated by the striking ship would be observed. In material level, analyses were conducted with applying different mechanical properties on the Side Structure. The results indicated that the tearing of inner hull was avoided due to size of double hull Structure. This condition provided better safety but lower ship capacity. In other hand, strength characteristic of material was proofed dominate difference of internal energy. Finally, the influences of material strength, failure strain, and hardening parameter were evaluated and summarized.
Jan Dettmer - One of the best experts on this subject based on the ideXlab platform.
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Direct-seismogram inversion for receiver-Side Structure with unknown source-time functions
2015Co-Authors: Jan Dettmer, Stan E. Dosso, Thomas Bodin, Josip Stipcevic, Phil R. CumminsAbstract:Jan Dettmer,1,2 Stan E. Dosso,1 Thomas Bodin,3,4 Josip Stipcevic2,5 and Phil R. Cummins2 1School of Earth and Ocean Sciences, University of Victoria, Victoria BC, Canada. E-mail: jand@uvic.ca 2Research School of Earth Sciences, Australian National University, Canberra ACT, Australia 3Berkeley Seismological Laboratory, 215 McCone Hall, UC Berkeley, Berkeley CA 94720-4760, USA 4Laboratoire de Geologie de Lyon, Ecole Normale Superieure de Lyon, Universite de Lyon-1, CNRS, F-69364 Lyon Cedex 07, France 5Department of Geophysics, Faculty of Science, University of Zagreb, Zagreb, Croatia
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Direct-seismogram inversion for receiver-Side Structure with uncertain source-time functions
Geophysical Journal International, 2015Co-Authors: Jan Dettmer, Stan E. Dosso, Thomas Bodin, Josip Stipcevic, Phil R. CumminsAbstract:This paper presents direct-seismogram inversion (DSI) for receiver-Side Structure which treats the source signal incident from below (the effective source-time function-STF) as a vector of unknown parameters in a Bayesian framework. As a result, the DSI method developed here does not require deconvolution by observed seismogram components as typically applied in receiver-function inversion and avoids the problematic issue of choosing subjective tuning parameters in this deconvolution. This results in more meaningful inversion results and uncertainty estimation compared to classic receiver-function inversion. A rigorous derivation is presented of the likelihood function required for unbiased inversion results. The STF is efficiently inferred by a maximum-likelihood closed-form expression that does not require deconvolution by noisy waveforms. Rather, deconvolution is only by predicted impulse responses for the unknown environment (conSidered to be a 1-D, horizontally stratified medium). For a given realization of the parameter vector which describes the medium below the station, data predictions are computed as the convolution of the impulse response and the maximum-likelihood source estimate for that medium. Therefore, the assumption of a Gaussian pulse with specified parameters, typical for the prediction of receiver functions, is not required. Directly inverting seismogram components has important consequences for the noise on the data. Since the signal processing does not require filtering and deconvolution, data errors are less correlated and more straightforward to model than those for receiver functions. This results in better inversion results (parameter values and uncertainties), since assumptions made in the derivation of the likelihood function are more likely to be met by the inversion process. The DSI method is demonstrated for simulated waveforms and then applied to data for station Hyderabad on the Indian craton. The measured data are inverted with both the new DSI and traditional receiver-function inversion. All inversions are carried out for a trans-dimensional model that treats the number of layers in the model as unknown. Results for DSI are consistent with previous studies for the same location. The DSI has clear advantages in trans-dimensional inversion. Uncertainty estimates appear more realistic (larger) in both model complexity (number of layers) and in terms of seismic velocity profiles. Receiver-function inversion results in more complex profiles (highly-layered Structure) and suggests unreasonably small uncertainties. This effect is likely also significant when the parametrization is conSidered to be fixed but exacerbated for the trans-dimensional model: If hierarchical errors are poorly estimated, trans-dimensional models overestimate the Structure which produces unfavourable results for the receiver-function inversion.
Jung Min Sohn - One of the best experts on this subject based on the ideXlab platform.
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Progressive structural failure of the RoRo Side hull during accidental powered-bow collisions
2018Co-Authors: Aditya Rio Prabowo, Bangun Ir Harsritanto, Jung Min Sohn, Aldias Bahatmaka, Samuel SamuelAbstract:Contact phenomena can be advantageous in several activities, such as material forming for a hull plate of a ship in shipbuilding. However in ocean engineering and marine Structure, sometimes contact cannot be controlled and produces an impact which causes immense casualties for ship, crew, cargo and sea environment. Collision appears as the most common impact form which its influence to destruction of a sea environment has been acknowledged. In this study, a concern is addressed to a structural observation under a ship collision. A Side Structure of a passenger ship is modelled to be the target ship while the other ship so called the striking ship is deployed as an indenter to penetrate the target ship. Results indicate that the interactions in contact process involve not only the upper deck but also the bulbous bow of the striking ship. Load and draught height of the striking ship can change which lead to a change of impact target and deformation on the target ship. Finally, the confirmation of energy that is used to destroy the struck ship is summarized.Contact phenomena can be advantageous in several activities, such as material forming for a hull plate of a ship in shipbuilding. However in ocean engineering and marine Structure, sometimes contact cannot be controlled and produces an impact which causes immense casualties for ship, crew, cargo and sea environment. Collision appears as the most common impact form which its influence to destruction of a sea environment has been acknowledged. In this study, a concern is addressed to a structural observation under a ship collision. A Side Structure of a passenger ship is modelled to be the target ship while the other ship so called the striking ship is deployed as an indenter to penetrate the target ship. Results indicate that the interactions in contact process involve not only the upper deck but also the bulbous bow of the striking ship. Load and draught height of the striking ship can change which lead to a change of impact target and deformation on the target ship. Finally, the confirmation of energy th...
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Nonlinear analysis of inter-island RoRo under impact: effects of selected collision’s parameters on the crashworthy double-Side Structures
Journal of the Brazilian Society of Mechanical Sciences and Engineering, 2018Co-Authors: Aditya Rio Prabowo, Teguh Muttaqie, Jung Min SohnAbstract:The purpose of this paper is to study the effect of selected parameters in ship collision and extend it to assessment of structural crashworthiness on the double-Side Structure (DSS). A brief concept and implementation of the ship–ship interaction is presented in early discussion, which is followed by fundamental factors in numerical calculation. Initial analysis is addressed to quantify influence of several element formulations types on damage extent and simulation time. According to comparison with certain RoRo collision incident data, the fully integrated version of the Belytschko–Tsay emerges as the most similar in terms of the damage criterion of analysis. Even though ordinary type of the Belytschko–Tsay produces faster time processing, fully integrated version is still chosen as it can prevent undesired phenomena during nonlinear finite element analysis. The next analysis aims to conduct crashworthiness assessment on several regions of the target ship. Collision location and attacking velocity are determined as representative of the external dynamic parameters, while material grade is conSidered as the internal parameter. Assessment results of the DSS are presented in forms of the statistical calculation to obtain variance percentage, and failure sequence to understand crushing process during Side collision. Result tendency indicates that the velocity is nominated as the most influencing parameters to the crashworthiness criteria of the target ship.
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On the failure behaviour to striking bow penetration of impacted marine-steel Structures
Curved and Layered Structures, 2018Co-Authors: Aditya Rio Prabowo, Teguh Muttaqie, Jung Min Sohn, Agus SetiyawanAbstract:Abstract Demands for water transportation modes are continuously increasing as rapid economic and industrial growths in the recent decade. Ship as representative of the water transportation is generally needed to carry various products from one location to another. BeSides as product carrier, ship also acts as public facility to transport human across islands for number of reasons, such as tourism and vehicle. ConSidering its importance, structural damage due to accidental loads or so-called impact can cause unacceptable casualties which threat ship passenger, shipping industry and maritime environment in same time. The most frequent impact phenomena occur in forms of collision and grounding, which are targeting Side Structure and double bottom consecutively. However, since responses of the impacts on Structure are highly nonlinear and vary due to development of ship Structures, sustainable analysis as an update of pioneer calculation can be beneficial as rational reference for improving safety and navigational instruments. This work aims to assess failures of the Side Structures subjected to penetration of striking bow in ship-ship collision scenario. Locations of impact are idealized to happen on after-end, midsection and fore-end to provide complete assessment. Striking bow is to be deployed by varying input velocity to observe significance of the fractures on the Side Structure. This configuration is implemented on the designed collision scenario, and later calculated using nonlinear finite element method (NLFEM). Summary of the solution indicated that the midsection produced the highest resistance against Side collision. Breaching of the inner shell was successfully avoided on the fore-end, but the critical damage to the cargo was observed during bow penetration to the after-end region. This location was recommended to be added by longitudinal framing to increase its resistance against ship collision.
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Performance assessment on a variety of double Side Structure during collision interaction with other ship
Curved and Layered Structures, 2017Co-Authors: Aditya Rio Prabowo, Jung Min SohnAbstract:Abstract The main goal of the present paper was to study the physical response of a double Side skin (DSS) Structure under impact load in a collision event between two ships. Collision energy and damage extent (size and location) during the collision process were observed together with damage patterns on Side Structure. The ships were modeled after a Ro-Ro passenger ship and cargo reefer which were involved in a ship collision on the Sunda Strait while the analyseswere performed using non-linear simulations FEMto produce virtual simulation data. Several caseswere proposed to be investigated in this work with involvement of parameters i.e. penetration location and ship materials which were embedded on the Structure model. A series of material experiments and testing was conducted to obtain detailed material properties which were to be deployed in simulation. It was shown that, after penetration at the transition location, the striking ship was successfully deforming and forming tears to the inner skin. On the other hand, with identical Structure and identical mass of construction, the use of high-strength low-alloy (HSLA) steel as the repair material offered conSiderably better capacity in absorbing the impact load than plain-carbon steel.
-
Analysis of structural damage on the struck ship under Side collision scenario
alexandria engineering journal, 2017Co-Authors: Aditya Rio Prabowo, Jung Min Sohn, Ahmad Fauzan Zakki, Qing WangAbstract:Abstract The occurrence of impact needs to be predicted for various cases as it mostly delivers negative to target object and environment. In marine Structure, this phenomenon has distributed numerous damages to involved objects, such as can be found in tragedy of the Estonia in 1994. This disaster led to a reassessment of the safety of passenger ships in many country. During impact both of structural and material aspects contributes to responses in form of energy, force, and damage. In present work, conSideration of the both aspects would be conSidered in preparation, analysis, and discussion, to evaluate contribution of conSidered aspects on failure characteristic. A target subjected to impact load in form of collision so called struck ship which had different hull configuration would be used in analysis as structural behaviour during and after hull Structure of the struck ship was penetrated by the striking ship would be observed. In material level, analyses were conducted with applying different mechanical properties on the Side Structure. The results indicated that the tearing of inner hull was avoided due to size of double hull Structure. This condition provided better safety but lower ship capacity. In other hand, strength characteristic of material was proofed dominate difference of internal energy. Finally, the influences of material strength, failure strain, and hardening parameter were evaluated and summarized.