Damage Analysis

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Dimitri N. Mavris - One of the best experts on this subject based on the ideXlab platform.

  • Modeling and simulation for Damage Analysis of intelligent, self-reconfigurable ship fluid systems in early design phase
    Simulation Modelling Practice and Theory, 2011
    Co-Authors: Kyungjin Moon, Dimitri N. Mavris
    Abstract:

    Abstract This paper pursues a modeling and simulation (M&S) solution for performing a rigorous Damage Analysis in the conceptual or preliminary design of an intelligent, self-reconfigurable ship fluid system. As enablers to the solution, two essential elements were identified in the formulation. The first one is the graph-based topological modeling method which will be employed for rapid model reconstruction and Damage modeling, and the second one is the recurrent neural network-based, component-level surrogate modeling method which will be used to improve the affordability and efficiency of the M&S computations. The integration of these two methods can deliver computationally efficient, flexible, and automation-friendly M&S which will create an environment for a more rigorous Damage Analysis. Finally, a demonstration of the Damage Analysis as it is applied to a notional ship fluid system is provided, with a description of the benefits of this approach.

  • Modeling and simulation for Damage Analysis of intelligent, self-reconfigurable ship fluid systems in early design phase
    Simulation Modelling Practice and Theory, 2011
    Co-Authors: Kyungjin Moon, Dimitri N. Mavris
    Abstract:

    This paper pursues a modeling and simulation (M&S) solution for performing a rigorous Damage Analysis in the conceptual or preliminary design of an intelligent, self-reconfigurable ship fluid system. As enablers to the solution, two essential elements were identified in the formulation. The first one is the graph-based topological modeling method which will be employed for rapid model reconstruction and Damage modeling, and the second one is the recurrent neural network-based, component-level surrogate modeling method which will be used to improve the affordability and efficiency of the M&S computations. The integration of these two methods can deliver computationally efficient, flexible, and automation-friendly M&S which will create an environment for a more rigorous Damage Analysis. Finally, a demonstration of the Damage Analysis as it is applied to a notional ship fluid system is provided, with a description of the benefits of this approach. © 2011 Elsevier B.V. All rights reserved.

Donglai Xu - One of the best experts on this subject based on the ideXlab platform.

  • The Validation of Computational Software System for Creep Damage Analysis
    Advanced Materials Research, 2013
    Co-Authors: Qiang Xu, Zhong Yu Lu, Donglai Xu
    Abstract:

    This paper reported a validation of computational software system for creep Damage Analysis using circular notched bar. The complete computational software system for creep Damage Analysis consists of pre-and post-processing and the numerical solver and here the validation is primarily for the pre-and post-processing section developed by the authors. The creep Damage evolution with time was post-processed interactively via FEMSYS.

  • Research in the development of finite element software for creep Damage Analysis
    Journal of Communication and Computer, 2013
    Co-Authors: Qiang Xu, Zhong Yu Lu, Donglai Xu
    Abstract:

    This paper reports the development of finite element software for creep Damage Analysis. Creep Damage deformation and failure of high temperature structure is a serious problem for power generation and it is even more technically demanding under the current increasing demand of power and economic and sustainability pressure. This paper primarily consists of three parts: 1) the need and the justification of the development of in-house software; 2) the techniques in developing such software for creep Damage Analysis; 3) thirdly, the validation of the finite element software conducted under plane stress, plane strain, axisymmetric, and 3 dimensional cases. This paper contributes to the computational creep Damage mechanics in general.

  • The Techniques in Developing Finite Element Software for Creep Damage Analysis
    Advanced Materials Research, 2013
    Co-Authors: Qiang Xu, Zhong Yu Lu, Donglai Xu, Qi Hua Xu
    Abstract:

    There is a need for a computational tool for analyzing creep Damage problems for the research community and high temperature industries, and dedicated in-house software still has its merits and advantages. This paper reports the development of such software including the development of finite element algorithms based on CDM for creep Damage Analysis, and the use of some standard subroutines in programming, and sample of validation.

  • Literature Review on the Development of Computational Software System for Creep Damage Analysis for Weldment
    Advanced Materials Research, 2012
    Co-Authors: Qiang Xu, Zhong Yu Lu, Donglai Xu
    Abstract:

    This paper reports a literature review on the development of computational software system for creep Damage Analysis for weldment. It starts with a brief review on the creep Damage problem in weldment and the computational approach; identifies the need for computational approach and the un-availability of such computational system; further details on the preliminary development progress of a transfer programme and constitutive equation subroutines. This paper contributes to knowledge to the development of computational system for creep Damage Analysis.

  • The preliminary development of computational software system for creep Damage Analysis in weldment
    18th International Conference on Automation and Computing (ICAC), 2012
    Co-Authors: Qiang Xu, Zhong Yu Lu, Donglai Xu
    Abstract:

    In order to develop a computational software system for creep Damage Analysis of weldment, the background knowledge had been briefly reviewed and understood. Two subjects, software interface and integration algorithm had been proposed and researched. This paper explained the methodology of software development and posted the validation result of these two subjects.

Kyungjin Moon - One of the best experts on this subject based on the ideXlab platform.

  • Modeling and simulation for Damage Analysis of intelligent, self-reconfigurable ship fluid systems in early design phase
    Simulation Modelling Practice and Theory, 2011
    Co-Authors: Kyungjin Moon, Dimitri N. Mavris
    Abstract:

    Abstract This paper pursues a modeling and simulation (M&S) solution for performing a rigorous Damage Analysis in the conceptual or preliminary design of an intelligent, self-reconfigurable ship fluid system. As enablers to the solution, two essential elements were identified in the formulation. The first one is the graph-based topological modeling method which will be employed for rapid model reconstruction and Damage modeling, and the second one is the recurrent neural network-based, component-level surrogate modeling method which will be used to improve the affordability and efficiency of the M&S computations. The integration of these two methods can deliver computationally efficient, flexible, and automation-friendly M&S which will create an environment for a more rigorous Damage Analysis. Finally, a demonstration of the Damage Analysis as it is applied to a notional ship fluid system is provided, with a description of the benefits of this approach.

  • Modeling and simulation for Damage Analysis of intelligent, self-reconfigurable ship fluid systems in early design phase
    Simulation Modelling Practice and Theory, 2011
    Co-Authors: Kyungjin Moon, Dimitri N. Mavris
    Abstract:

    This paper pursues a modeling and simulation (M&S) solution for performing a rigorous Damage Analysis in the conceptual or preliminary design of an intelligent, self-reconfigurable ship fluid system. As enablers to the solution, two essential elements were identified in the formulation. The first one is the graph-based topological modeling method which will be employed for rapid model reconstruction and Damage modeling, and the second one is the recurrent neural network-based, component-level surrogate modeling method which will be used to improve the affordability and efficiency of the M&S computations. The integration of these two methods can deliver computationally efficient, flexible, and automation-friendly M&S which will create an environment for a more rigorous Damage Analysis. Finally, a demonstration of the Damage Analysis as it is applied to a notional ship fluid system is provided, with a description of the benefits of this approach. © 2011 Elsevier B.V. All rights reserved.

Qiang Xu - One of the best experts on this subject based on the ideXlab platform.

  • The Validation of Computational Software System for Creep Damage Analysis
    Advanced Materials Research, 2013
    Co-Authors: Qiang Xu, Zhong Yu Lu, Donglai Xu
    Abstract:

    This paper reported a validation of computational software system for creep Damage Analysis using circular notched bar. The complete computational software system for creep Damage Analysis consists of pre-and post-processing and the numerical solver and here the validation is primarily for the pre-and post-processing section developed by the authors. The creep Damage evolution with time was post-processed interactively via FEMSYS.

  • Research in the development of finite element software for creep Damage Analysis
    Journal of Communication and Computer, 2013
    Co-Authors: Qiang Xu, Zhong Yu Lu, Donglai Xu
    Abstract:

    This paper reports the development of finite element software for creep Damage Analysis. Creep Damage deformation and failure of high temperature structure is a serious problem for power generation and it is even more technically demanding under the current increasing demand of power and economic and sustainability pressure. This paper primarily consists of three parts: 1) the need and the justification of the development of in-house software; 2) the techniques in developing such software for creep Damage Analysis; 3) thirdly, the validation of the finite element software conducted under plane stress, plane strain, axisymmetric, and 3 dimensional cases. This paper contributes to the computational creep Damage mechanics in general.

  • The Techniques in Developing Finite Element Software for Creep Damage Analysis
    Advanced Materials Research, 2013
    Co-Authors: Qiang Xu, Zhong Yu Lu, Donglai Xu, Qi Hua Xu
    Abstract:

    There is a need for a computational tool for analyzing creep Damage problems for the research community and high temperature industries, and dedicated in-house software still has its merits and advantages. This paper reports the development of such software including the development of finite element algorithms based on CDM for creep Damage Analysis, and the use of some standard subroutines in programming, and sample of validation.

  • Literature Review on the Development of Computational Software System for Creep Damage Analysis for Weldment
    Advanced Materials Research, 2012
    Co-Authors: Qiang Xu, Zhong Yu Lu, Donglai Xu
    Abstract:

    This paper reports a literature review on the development of computational software system for creep Damage Analysis for weldment. It starts with a brief review on the creep Damage problem in weldment and the computational approach; identifies the need for computational approach and the un-availability of such computational system; further details on the preliminary development progress of a transfer programme and constitutive equation subroutines. This paper contributes to knowledge to the development of computational system for creep Damage Analysis.

  • The preliminary development of computational software system for creep Damage Analysis in weldment
    18th International Conference on Automation and Computing (ICAC), 2012
    Co-Authors: Qiang Xu, Zhong Yu Lu, Donglai Xu
    Abstract:

    In order to develop a computational software system for creep Damage Analysis of weldment, the background knowledge had been briefly reviewed and understood. Two subjects, software interface and integration algorithm had been proposed and researched. This paper explained the methodology of software development and posted the validation result of these two subjects.

P Gaspersic - One of the best experts on this subject based on the ideXlab platform.

  • the n2 method for the seismic Damage Analysis of rc buildings
    Earthquake Engineering & Structural Dynamics, 1996
    Co-Authors: Peter Fajfar, P Gaspersic
    Abstract:

    A comprehensive, though relatively simple, non-linear method for the seismic Damage Analysis of reinforced concrete buildings (the N2 method) has been elaborated. The basic features of the method are: the use of two separate mathematical models, application of the response spectrum approach and of the non-linear static Analysis, and the choice of a Damage model which includes cumulative Damage. The method yields results of reasonable accuracy provided that the structure oscillates predominantly in the first mode. Three variants of a seven-storey building have been used as illustrative examples for the application of the method. Four different types of the Analysis, with different degrees of sophistication, have been performed in order to estimate the influence of several assumptions and approximations used in the N2 method.