FE simulation of rate-dependent behaviours of polymer geosynthetic reinforcements for an estimation of mobilized tensile force in a reinforced soil

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• 作者：Wenzheng Shi^a ; Fangle Peng^a ; ^{pengfangle@tongji.edu.cn" class="auth_mail" title="E-mail the corresponding author} ; Warat Kongkitkul^b
• 关键词：Geosynthetic reinforcement ; Rate-dependent behaviour ; Nonlinear three-component model ; Reinforced soil ; FE simulation
• 刊名：Computers and Geotechnics
• 出版年：2016
• 出版时间：December 2016
• 年：2016
• 卷：80
• 期：Complete
• 页码：49-58
• 全文大小：2131 K

文摘

Polymer geosynthetic reinforcements exhibit obvious viscous behaviours depending on the loading strain rate. These behaviours can be accurately described using a nonlinear three-component constitutive model. After implementing this model into the finite element software ABAQUS, it can be widely used for the analysis of geosynthetic-reinforced soil problems. The algorithm for the numerical integration of this elasto-viscoplastic model is explained in detail. Simulations of both in-isolation geosynthetic reinforcement and geosynthetic-reinforced soil specimen are performed to analyse the viscous behaviours of polymer geosynthetics under complex loading histories. The corresponding user subroutines are provided in the supplementary data for potential readers.