Elastic-viscoplastic behaviors of polymer-blend geocell sheets:Numerical and experimental investigations

作     者：Yang Zhao Jianbin Chen Zheng Lu Jie Liu Abdollah Tabaroei Chuxuan Tang Yong Wang Lipeng Wu Bo Wang Hailin Yao Yang Zhao;Jianbin Chen;Zheng Lu;Jie Liu;Abdollah Tabaroei;Chuxuan Tang;Yong Wang;Lipeng Wu;Bo Wang;Hailin Yao

作者机构：State Key Laboratory of Geomechanics and Geotechnical EngineeringInstitute of Rock and Soil MechanicsChinese Academy of SciencesWuhan430071China Wuhan Municipal Engineering Design&Research Institute Co.Ltd.Wuhan430023China Hubei Key Laboratory of Geo-Environmental EngineeringWuhan430071China Xinjiang Transportation Planning Survey and Design Institute Co.Ltd.Urumqi830006China Department of Civil EngineeringEshragh Institute of Higher EducationBojnourd***Iran University of Chinese Academy of SciencesBeijing100049China China Energy Engineering Gezhouba Rail Transit Construction Co.Ltd.Shenzhen518116China 

出 版 物：《Journal of Rock Mechanics and Geotechnical Engineering》 (岩石力学与岩土工程学报（英文）)

年 卷 期：2024年第16卷第10期

页      面：4261-4271页

核心收录：

学科分类：0820[工学-石油与天然气工程] 08[工学] 082002[工学-油气田开发工程] 

基　　金：supported by the National Natural Science Foundation of China(Grant Nos.42077262 and 42077261) the Research Fund Project of Xinjiang Transportation Planning Survey and Design Institute Co.,Ltd.(Grant No.KY2022042504) 

主　　题：Polymer-blend geocell sheets Geosynthetics Elastic-viscoplastic behavior Numerical simulations Tensile load-strain response 

摘      要：Polymer-blend geocell sheets(PBGS)have been developed as substitute materials for manufacturing *** attempts have been made to test and predict the behaviors of commonly used geogrids,geotextiles,geomembranes,and ***,the elastic-viscoplastic behaviors of novel-developed geocell sheets are still poorly ***,this paper investigates the elastic-viscoplastic behaviors of PBGS to gain a comprehensive understanding of their mechanical ***,the tensile load-strain history under various loading conditions is simulated by numerical calculation for widespread *** achieve this goal,monotonic loading tests,short-term creep and stress relaxation tests,and multi-load-path tests(also known as arbitrary loading history tests)are performed using a universal testing *** results are simulated using the nonlinear three-component(NLTC)model,which consists of three nonlinear components,i.e.a hypo-elastic component,a nonlinear inviscid component,and a nonlinear viscid *** experimental and numerical results demonstrate that PBGS exhibit significant elastic-viscoplastic behavior that can be accurately predicted by the NLTC ***,the tensile strain rates significantly influence the tensile load,with higher strain rates resulting in increased tensile loads and more linear load-strain ***,parametric analysis of the rheological characteristics reveals that the initial tensile strain rates have negligible impact on the *** rate-sensitivity coefficient of PBGS is approximately 0.163,which falls within the typical range observed in most geosynthetics.