Micro-mechanical model for predicting the elasto-plastic behavior of composites based on secant formulation method

作     者：Junhao LIANG Xinhai HE Wenlong TIAN Junhao LIANG;Xinhai HE;Wenlong TIAN

作者机构：School of Materials Science&EngineeringXi'an Polytechnic UniversityXi'an 710048China Shaanxi Key Laboratory of Surface Engineering and RemanufacturingXi'an UniversityXi'an 710048China School of Mechanical EngineeringNorthwestern Polytechnical UniversityXi'an 710072China 

出 版 物：《Chinese Journal of Aeronautics》 (中国航空学报（英文版）)

年 卷 期：2021年第34卷第1期

页      面：281-295页

核心收录：

学科分类：08[工学] 0805[工学-材料科学与工程（可授工学、理学学位）] 080502[工学-材料学] 

基　　金：the financial support from the Natural Science Basic Research Program of Shaanxi(No.2019JQ857) the Doctoral Scientific Research Foundation of Xi’an Polytechnic University(No.BS201863) the China Textile Industry Federation Science and Technology Guidance Project(No.2019002) the Tianyuan Open Fund Project(No.tywl2019-14) 

主　　题：Elasto-plastic behavior FE homogenization Mean-field homogenization MT-DI model Secant formulation 

摘      要：To predict the Elasto-Plastic Behaviors(EPBs)of aligned inclusions reinforced composites,this paper develops an interpolative Mori-Tanaka/Double-Inclusion(MT-DI)homogenization model with the secant formulation,and gives the numerical implementation algorithms of the developed MT-DI model with the secant *** Finite Element(FE)homogenization method is implemented to provide the exact EPBs of the composites and thus validate the MT-DI model with the secant *** MT-DI model with the 2 nd-order secant formulation is validated to provide the more accurate predictions,while the MT-DI model with the 1 st-order secant formulation always gives the stiffer *** results show that using the macro-stress and macrostrain as the inputs,the MT-DI model with the secant formulation gives the identical *** predictions of the MT-DI model with the secant formulation vary between those of the MT and DI models with the secant ***,the MT-DI model with the secant formulation does not predict the accurate EPBs for the phases of the composites.