Computational Technology Resources - CCP

J.G.J. Beijer and J.L. Spoormaker

Faculty of Industrial Design Engineering, Delft University of Technology, Delft, The Netherlands

doi:10.4203/ccp.67.1.3

J.G.J. Beijer, J.L. Spoormaker, "Time Integration Strategies for FEM Analyses with Nonlinear Viscoelastic Polymers", in B.H.V. Topping, (Editor), "Computational Techniques for Materials, Composites and Composite Structures", Civil-Comp Press, Edinburgh, UK, pp 15-26, 2000. doi:10.4203/ccp.67.1.3

Abstract

The Schapery model has described the nonlinear viscoelastic behaviour of many polymers properly. Therefore this model was implemented into the FEM package MARC. Since explicit integration requires few computations per time integration step, but is often accompanied by numerical instabilities, and implicit integration requires more computations, but is numerically stable, combined strategies were programmed. Results show that the viscoelastic response of products can be calculated without numerical instabilities but with relatively short calculation times. Also full viscoelastic analyses and simplified analyses using creep isochrones on creep of an HDPE bottle crate were compared.

purchase the full-text of this paper (price £20)

go to the previous paper
go to the next paper
return to the table of contents
return to the book description
purchase this book (price £92 +P&P)

	Computational & Technology Resources an online resource for computational, engineering & technology publications
	not logged in - login
Front Page Browse CCP CSETS CTR IJRT Other Authors Search Purchase Guide FAQ Contact us	Civil-Comp Proceedings ISSN 1759-3433 CCP: 67 COMPUTATIONAL TECHNIQUES FOR MATERIALS, COMPOSITES AND COMPOSITE STRUCTURES Edited by: B.H.V. Topping Paper I.3 Time Integration Strategies for FEM Analyses with Nonlinear Viscoelastic Polymers J.G.J. Beijer and J.L. Spoormaker Faculty of Industrial Design Engineering, Delft University of Technology, Delft, The Netherlands doi:10.4203/ccp.67.1.3 purchase the full-text of this paper Full Bibliographic Reference for this paper J.G.J. Beijer, J.L. Spoormaker, "Time Integration Strategies for FEM Analyses with Nonlinear Viscoelastic Polymers", in B.H.V. Topping, (Editor), "Computational Techniques for Materials, Composites and Composite Structures", Civil-Comp Press, Edinburgh, UK, pp 15-26, 2000. doi:10.4203/ccp.67.1.3 Abstract The Schapery model has described the nonlinear viscoelastic behaviour of many polymers properly. Therefore this model was implemented into the FEM package MARC. Since explicit integration requires few computations per time integration step, but is often accompanied by numerical instabilities, and implicit integration requires more computations, but is numerically stable, combined strategies were programmed. Results show that the viscoelastic response of products can be calculated without numerical instabilities but with relatively short calculation times. Also full viscoelastic analyses and simplified analyses using creep isochrones on creep of an HDPE bottle crate were compared. purchase the full-text of this paper (price £20) go to the previous paper go to the next paper return to the table of contents return to the book description purchase this book (price £92 +P&P)
Back to top	©Civil-Comp Limited 2023 - terms & conditions