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Xuan-tan Pham - One of the best experts on this subject based on the ideXlab platform.
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influence of process parameters on the thermostamping of a 0 90 12 carbon polyether ether ketone laminate
Composites Part A-applied Science and Manufacturing, 2015Co-Authors: Hugues Lessard, Abdelhaq Benkaddour, Gilbert Lebrun, Xuan-tan PhamAbstract:Abstract In this study, an experimental evaluation of the thermostamping process was made for a 3D Part molded with a [0/90] 12 laminate composed of unidirectional carbon fiber/polyether ether ketone (CF/PEEK) plies. Using the Taguchi method, the effect of four operational parameters on the Part thickness, interlaminar shear strength and the degree of crystallinity were investigated. These parameters are the preheating temperature in the oven, the mold temperature, the oven to mold transfer time and the stamping pressure. The results show that the mold temperature and stamping pressure have a significant effect on Part Consolidation. In addition, the interlaminar shear strength, measured at the base of the molded Part, was higher for thinner Parts compared to those having a greater thickness. These results were also confirmed by Differential Scanning Calorimetry analysis, which show that the degree of crystallinity is higher for thinner Parts.
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Influence of process parameters on the thermostamping of a [0/90]12 carbon/polyether ether ketone laminate
Composites Part A: Applied Science and Manufacturing, 2015Co-Authors: Hugues Lessard, Abdelhaq Benkaddour, Gilbert Lebrun, Xuan-tan PhamAbstract:Abstract In this study, an experimental evaluation of the thermostamping process was made for a 3D Part molded with a [0/90] 12 laminate composed of unidirectional carbon fiber/polyether ether ketone (CF/PEEK) plies. Using the Taguchi method, the effect of four operational parameters on the Part thickness, interlaminar shear strength and the degree of crystallinity were investigated. These parameters are the preheating temperature in the oven, the mold temperature, the oven to mold transfer time and the stamping pressure. The results show that the mold temperature and stamping pressure have a significant effect on Part Consolidation. In addition, the interlaminar shear strength, measured at the base of the molded Part, was higher for thinner Parts compared to those having a greater thickness. These results were also confirmed by Differential Scanning Calorimetry analysis, which show that the degree of crystallinity is higher for thinner Parts.
Hugues Lessard - One of the best experts on this subject based on the ideXlab platform.
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influence of process parameters on the thermostamping of a 0 90 12 carbon polyether ether ketone laminate
Composites Part A-applied Science and Manufacturing, 2015Co-Authors: Hugues Lessard, Abdelhaq Benkaddour, Gilbert Lebrun, Xuan-tan PhamAbstract:Abstract In this study, an experimental evaluation of the thermostamping process was made for a 3D Part molded with a [0/90] 12 laminate composed of unidirectional carbon fiber/polyether ether ketone (CF/PEEK) plies. Using the Taguchi method, the effect of four operational parameters on the Part thickness, interlaminar shear strength and the degree of crystallinity were investigated. These parameters are the preheating temperature in the oven, the mold temperature, the oven to mold transfer time and the stamping pressure. The results show that the mold temperature and stamping pressure have a significant effect on Part Consolidation. In addition, the interlaminar shear strength, measured at the base of the molded Part, was higher for thinner Parts compared to those having a greater thickness. These results were also confirmed by Differential Scanning Calorimetry analysis, which show that the degree of crystallinity is higher for thinner Parts.
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Influence of process parameters on the thermostamping of a [0/90]12 carbon/polyether ether ketone laminate
Composites Part A: Applied Science and Manufacturing, 2015Co-Authors: Hugues Lessard, Abdelhaq Benkaddour, Gilbert Lebrun, Xuan-tan PhamAbstract:Abstract In this study, an experimental evaluation of the thermostamping process was made for a 3D Part molded with a [0/90] 12 laminate composed of unidirectional carbon fiber/polyether ether ketone (CF/PEEK) plies. Using the Taguchi method, the effect of four operational parameters on the Part thickness, interlaminar shear strength and the degree of crystallinity were investigated. These parameters are the preheating temperature in the oven, the mold temperature, the oven to mold transfer time and the stamping pressure. The results show that the mold temperature and stamping pressure have a significant effect on Part Consolidation. In addition, the interlaminar shear strength, measured at the base of the molded Part, was higher for thinner Parts compared to those having a greater thickness. These results were also confirmed by Differential Scanning Calorimetry analysis, which show that the degree of crystallinity is higher for thinner Parts.
Abdelhaq Benkaddour - One of the best experts on this subject based on the ideXlab platform.
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thermostamping of 0 90 n carbon peek laminates influence of support configuration and demolding temperature on Part Consolidation
Polymer Composites, 2018Co-Authors: Abdelhaq Benkaddour, Gilbert Lebrun, Louis LabergelebelAbstract:This work presents experimental results on the thermostamping of carbon/PEEK cross-ply laminates made of unidirectional prepregs. The first objective was to evaluate the effect of the supporting frame and laminate thickness on the Consolidation quality of the final Part. Based on the use of a square frame mounted with constant-force springs clamps, three support configurations are compared: (i) clamp a polyimide film with the springs and use it to support the blank, (ii) support the blank with the constant-force springs without polyimide film and (iii) support both the blank and a polyimide film with the springs. Using the best of these configurations (configurations ii and iii), the second objective was to push further the analysis and evaluate how demolding at different temperatures affects the Part thickness distribution, the interlaminar shear strength and the cycle time of the process. Good Consolidation qualities were obtained with configurations (ii) and (iii). However, the latter allows for more uniformity in the Part thickness and higher shear strength when demolding at higher temperatures. It also allows a reduction of the molding cycle time considering the Part can be demolded at a higher temperature (reduced cooling time). POLYM. COMPOS., 2017. © 2017 Society of Plastics Engineers
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Thermostamping of [0/90]n carbon/peek laminates: Influence of support configuration and demolding temperature on Part Consolidation
Polymer Composites, 2017Co-Authors: Abdelhaq Benkaddour, Gilbert Lebrun, Louis Laberge-lebelAbstract:This work presents experimental results on the thermostamping of carbon/PEEK cross-ply laminates made of unidirectional prepregs. The first objective was to evaluate the effect of the supporting frame and laminate thickness on the Consolidation quality of the final Part. Based on the use of a square frame mounted with constant-force springs clamps, three support configurations are compared: (i) clamp a polyimide film with the springs and use it to support the blank, (ii) support the blank with the constant-force springs without polyimide film and (iii) support both the blank and a polyimide film with the springs. Using the best of these configurations (configurations ii and iii), the second objective was to push further the analysis and evaluate how demolding at different temperatures affects the Part thickness distribution, the interlaminar shear strength and the cycle time of the process. Good Consolidation qualities were obtained with configurations (ii) and (iii). However, the latter allows for more uniformity in the Part thickness and higher shear strength when demolding at higher temperatures. It also allows a reduction of the molding cycle time considering the Part can be demolded at a higher temperature (reduced cooling time). POLYM. COMPOS., 2017. © 2017 Society of Plastics Engineers
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influence of process parameters on the thermostamping of a 0 90 12 carbon polyether ether ketone laminate
Composites Part A-applied Science and Manufacturing, 2015Co-Authors: Hugues Lessard, Abdelhaq Benkaddour, Gilbert Lebrun, Xuan-tan PhamAbstract:Abstract In this study, an experimental evaluation of the thermostamping process was made for a 3D Part molded with a [0/90] 12 laminate composed of unidirectional carbon fiber/polyether ether ketone (CF/PEEK) plies. Using the Taguchi method, the effect of four operational parameters on the Part thickness, interlaminar shear strength and the degree of crystallinity were investigated. These parameters are the preheating temperature in the oven, the mold temperature, the oven to mold transfer time and the stamping pressure. The results show that the mold temperature and stamping pressure have a significant effect on Part Consolidation. In addition, the interlaminar shear strength, measured at the base of the molded Part, was higher for thinner Parts compared to those having a greater thickness. These results were also confirmed by Differential Scanning Calorimetry analysis, which show that the degree of crystallinity is higher for thinner Parts.
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Influence of process parameters on the thermostamping of a [0/90]12 carbon/polyether ether ketone laminate
Composites Part A: Applied Science and Manufacturing, 2015Co-Authors: Hugues Lessard, Abdelhaq Benkaddour, Gilbert Lebrun, Xuan-tan PhamAbstract:Abstract In this study, an experimental evaluation of the thermostamping process was made for a 3D Part molded with a [0/90] 12 laminate composed of unidirectional carbon fiber/polyether ether ketone (CF/PEEK) plies. Using the Taguchi method, the effect of four operational parameters on the Part thickness, interlaminar shear strength and the degree of crystallinity were investigated. These parameters are the preheating temperature in the oven, the mold temperature, the oven to mold transfer time and the stamping pressure. The results show that the mold temperature and stamping pressure have a significant effect on Part Consolidation. In addition, the interlaminar shear strength, measured at the base of the molded Part, was higher for thinner Parts compared to those having a greater thickness. These results were also confirmed by Differential Scanning Calorimetry analysis, which show that the degree of crystallinity is higher for thinner Parts.
Gilbert Lebrun - One of the best experts on this subject based on the ideXlab platform.
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thermostamping of 0 90 n carbon peek laminates influence of support configuration and demolding temperature on Part Consolidation
Polymer Composites, 2018Co-Authors: Abdelhaq Benkaddour, Gilbert Lebrun, Louis LabergelebelAbstract:This work presents experimental results on the thermostamping of carbon/PEEK cross-ply laminates made of unidirectional prepregs. The first objective was to evaluate the effect of the supporting frame and laminate thickness on the Consolidation quality of the final Part. Based on the use of a square frame mounted with constant-force springs clamps, three support configurations are compared: (i) clamp a polyimide film with the springs and use it to support the blank, (ii) support the blank with the constant-force springs without polyimide film and (iii) support both the blank and a polyimide film with the springs. Using the best of these configurations (configurations ii and iii), the second objective was to push further the analysis and evaluate how demolding at different temperatures affects the Part thickness distribution, the interlaminar shear strength and the cycle time of the process. Good Consolidation qualities were obtained with configurations (ii) and (iii). However, the latter allows for more uniformity in the Part thickness and higher shear strength when demolding at higher temperatures. It also allows a reduction of the molding cycle time considering the Part can be demolded at a higher temperature (reduced cooling time). POLYM. COMPOS., 2017. © 2017 Society of Plastics Engineers
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Thermostamping of [0/90]n carbon/peek laminates: Influence of support configuration and demolding temperature on Part Consolidation
Polymer Composites, 2017Co-Authors: Abdelhaq Benkaddour, Gilbert Lebrun, Louis Laberge-lebelAbstract:This work presents experimental results on the thermostamping of carbon/PEEK cross-ply laminates made of unidirectional prepregs. The first objective was to evaluate the effect of the supporting frame and laminate thickness on the Consolidation quality of the final Part. Based on the use of a square frame mounted with constant-force springs clamps, three support configurations are compared: (i) clamp a polyimide film with the springs and use it to support the blank, (ii) support the blank with the constant-force springs without polyimide film and (iii) support both the blank and a polyimide film with the springs. Using the best of these configurations (configurations ii and iii), the second objective was to push further the analysis and evaluate how demolding at different temperatures affects the Part thickness distribution, the interlaminar shear strength and the cycle time of the process. Good Consolidation qualities were obtained with configurations (ii) and (iii). However, the latter allows for more uniformity in the Part thickness and higher shear strength when demolding at higher temperatures. It also allows a reduction of the molding cycle time considering the Part can be demolded at a higher temperature (reduced cooling time). POLYM. COMPOS., 2017. © 2017 Society of Plastics Engineers
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influence of process parameters on the thermostamping of a 0 90 12 carbon polyether ether ketone laminate
Composites Part A-applied Science and Manufacturing, 2015Co-Authors: Hugues Lessard, Abdelhaq Benkaddour, Gilbert Lebrun, Xuan-tan PhamAbstract:Abstract In this study, an experimental evaluation of the thermostamping process was made for a 3D Part molded with a [0/90] 12 laminate composed of unidirectional carbon fiber/polyether ether ketone (CF/PEEK) plies. Using the Taguchi method, the effect of four operational parameters on the Part thickness, interlaminar shear strength and the degree of crystallinity were investigated. These parameters are the preheating temperature in the oven, the mold temperature, the oven to mold transfer time and the stamping pressure. The results show that the mold temperature and stamping pressure have a significant effect on Part Consolidation. In addition, the interlaminar shear strength, measured at the base of the molded Part, was higher for thinner Parts compared to those having a greater thickness. These results were also confirmed by Differential Scanning Calorimetry analysis, which show that the degree of crystallinity is higher for thinner Parts.
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Influence of process parameters on the thermostamping of a [0/90]12 carbon/polyether ether ketone laminate
Composites Part A: Applied Science and Manufacturing, 2015Co-Authors: Hugues Lessard, Abdelhaq Benkaddour, Gilbert Lebrun, Xuan-tan PhamAbstract:Abstract In this study, an experimental evaluation of the thermostamping process was made for a 3D Part molded with a [0/90] 12 laminate composed of unidirectional carbon fiber/polyether ether ketone (CF/PEEK) plies. Using the Taguchi method, the effect of four operational parameters on the Part thickness, interlaminar shear strength and the degree of crystallinity were investigated. These parameters are the preheating temperature in the oven, the mold temperature, the oven to mold transfer time and the stamping pressure. The results show that the mold temperature and stamping pressure have a significant effect on Part Consolidation. In addition, the interlaminar shear strength, measured at the base of the molded Part, was higher for thinner Parts compared to those having a greater thickness. These results were also confirmed by Differential Scanning Calorimetry analysis, which show that the degree of crystallinity is higher for thinner Parts.
Yaoyao Fiona Zhao - One of the best experts on this subject based on the ideXlab platform.
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A numerical-based Part Consolidation candidate detection approach with modularization considerations
Research in Engineering Design, 2019Co-Authors: Sheng Yang, Florian Santoro, Mohamed A Sulthan, Yaoyao Fiona ZhaoAbstract:Aided by the capabilities of additive manufacturing in building a Part with multiple materials, dynamic sub-components, and complex geometries, the number of Parts that are feasible for Consolidation has increased drastically. However, to decide which components to consolidate is difficult. Therefore, to identify these potential candidates out of a complex product is highly demanded. We define this issue as a Part Consolidation candidate detection (PCCD) problem. To solve this problem, we proposed three principles that rationalize the PCCD process with regard to the maximum number and the priority of Parts to be consolidated. Based on which, we developed a modularity-based PCCD (MPCCD) framework which is featured by the need for module division and community detection as well as two PCCD algorithms [i.e., strength-based numerical PCCD (NPCCD) and community-based PCCD (CPCCD)]. Two case studies of a throttle pedal and an octocopter are given to demonstrate the effectiveness of the proposed CPCCD algorithm and the MPCCD framework, respectively. In the end, this paper is wrapped up with important conclusions and future research.
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Understanding the sustainability potential of Part Consolidation design supported by additive manufacturing
Journal of Cleaner Production, 2019Co-Authors: Sheng Yang, Wenbo Min, Julian Ghibaudo, Yaoyao Fiona ZhaoAbstract:Abstract The environmental performance of additive manufacturing (AM) processes and the produced Parts has gained increasing interest. Various assessment models have been developed based on the general life cycle assessment (LCA) framework, although different in goals and boundaries, the inputs for these models are always a single Part (or a batch of same Parts). In contrast, the present research provides a new perspective towards the selection of a more sustainable assembly design. A comparative LCA model is built to investigate the environmental performance difference of two design approaches: assembly design (AD) made via conventional manufacturing (CM) plus assembly operations and Part Consolidation (PC) made via AM plus machining. The effects of weight reduction, prolonged life expectancy, and improved functional performance (e.g. fuel efficiency) attainable in the PC routine and the advantages of replaceable subcomponents in the AD routine are studied in a throttle pedal assembly example throughout the lifespan of the vehicle. The results reveal that the PC routine can be more environmental friendly than the AD counterPart when the lifespan can be improved by over 200% or the weight savings are more than 30%. The role of functional performance improvement on affecting sustainability may depend on the Part/vehicle ratio and vehicle types. This article extends the literature on sustainable assembly design and the proposed LCA model provides a way of identifying the profitable margins of PC in the early design stage.
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Towards a Numerical Approach of Finding Candidates for Additive Manufacturing-Enabled Part Consolidation
Journal of Mechanical Design, 2018Co-Authors: Sheng Yang, Florian Santoro, Yaoyao Fiona ZhaoAbstract:Part Consolidation (PC) is one of the typical design freedoms enabled by additive manufacturing (AM) processes. However, how to select potential candidates for PC is rarely discussed. This deficiency has hindered AM from wider applications in industry. Currently available design guidelines are based on obsolete heuristic rules provided for conventional manufacturing processes. This paper first revises these rules to take account of AM constraints and lifecycle factors so that efforts can be saved and used at the downstream detailed design stage. To automate the implementation of these revised rules, a numerical approach named PC candidate detection (PCCD) framework is proposed. This framework is comprised of two steps: construct functional and physical interaction (FPI) network and PCCD algorithm. FPI network is to abstractly represent the interaction relations between components as a graph whose nodes and edges have defined physical attributes. These attributes are taken as inputs for the PCCD algorithm to verify conformance to the revised rules. In this PCCD algorithm, verification sequence of rules, conflict handling, and the optimum grouping approach with the minimum Part count are studied. Compared to manual ad hoc design practices, the proposed PCCD method shows promise in repeatability, retrievability, and efficiency. Two case studies of a throttle pedal and a tripod are presented to show the application and effectiveness of the proposed methods.
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Assembly-Level Design for Additive Manufacturing: Issues and Benchmark
Volume 2A: 42nd Design Automation Conference, 2016Co-Authors: Sheng Yang, Yunlong Tang, Yaoyao Fiona ZhaoAbstract:The emerging additive manufacturing (AM) technology works in a layer-wise fashion which makes it possible to manipulate material distribution and composition. The resulting effects are reflected on the potential of innovative shape design, consolidated assembly, optimized topology, and functionally graded material. These new characteristics force designers to rethink about how to make a better engineering design. However, existing design theory and methodology cannot take these potentials provided by AM into account. To fill this void, various design for additive manufacturing (DFAM) approaches are reported. Unfortunately, majority of them focused on Part-level redesign without potential of being extended to assembly-level applications. In order to shed a light into this emerging field, an overview of current assembly-level DFAM is summarized in this paper. After that, existing issues including the absent analysis of AM’s impact on conceptual design, the lack of explicit functional analysis method, the shortage of decision-making support for Part Consolidation, the deficiency of functional reasoning approaches to generate AM-enabled features, and the scarcity of integrating manufacturing and assembly knowledge into design stage are analyzed and discussed. However, it seems that addressing these issues is such a large scope that collaborative efforts are in need from both design and manufacturing communities. Therefore, this paper serves as a call to action for the research community to establish a comprehensive assembly-level/ product-level DFAM method to realize product evolution. As an initial benchmark, authors propose a three-stage design methodology on the basis of the Systematic Design approach. In the presented framework, functional analysis, Part Consolidation, and structural optimization with process knowledge integration are much highlighted. Moreover, a simple redesign case study is exemplified to clarify existing issues and how the benchmark method works. In the end, this paper is wrapped up with future research.
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Sustainable Design for Additive Manufacturing Through Functionality Integration and Part Consolidation
Handbook of Sustainability in Additive Manufacturing, 2016Co-Authors: Yunlong Tang, Sheng Yang, Yaoyao Fiona ZhaoAbstract:Additive Manufacturing (AM) is a type of material joining process whereby Parts can be directly fabricated from its 3D model by adding materials typically in a layer by layer fashion. Compared to conventional manufacturing techniques, AM has some unique capabilities which bring significant design freedom for designers. Some of this design freedom is manifested in the innovative design of lattice structure to achieve multifunction with reduced weight and consolidated component designed with reduced Part count and improved performances. A new type of design philosophy for AM is emerging that is to achieve integrated functions and Part Consolidation, which plays a significant role in sustainable design. This chapter discusses this new design philosophy with a thorough review of lattice structure design and optimization methods, design for AM methods, and other related new design methods. It presents a general design framework to support sustainable design for AM via functionality integration and Part Consolidation. This proposed general design methodology supports the design that has less Part counts and less material but without compromising its functionality. A case study is given at the end of the chapter to illustrate and validate the proposed design methodology. The result of this case study shows that the environmental impact of a product’s manufacturing process can be reduced by redesigning the existing product based on the proposed design methodology. Moreover, compared to its original design, the redesigned product also has a lower Part count. Generally, this case study implies that design freedom enabled by AM is an indispensable factor which needs to be considered during the environmental impact analysis of products fabricated by AM processes.