典型文献
Elastoplastic constitutive modeling under the complex loading driven by GRU and small-amount data
文献摘要：
In this paper, a data-driven method to model the three-dimensional engineering structure under the cyclic load with the one-dimensional stress-strain data is proposed. In this method, one-dimensional stress-strain data obtained under uniaxial load and different loading history is learned offline by gate recurrent unit (GRU) network. The learned constitutive model is embedded into the general finite ele-ment framework through data expansion from one dimension to three dimensions, which can perform stress updates under the three-dimensional setting. The proposed method is then adopted to drive nu-merical solutions of boundary value problems for engineering structures. Compared with direct numerical simulations using the J2 plasticity model, the stress-strain response of beam structure with elastoplastic materials under forward loading, reverse loading and cyclic loading were predicted accurately. Loading path dependent response of structure was captured and the effectiveness of the proposed method is ver-ified. The shortcomings of the proposed method are also discussed.
文献关键词：
中图分类号：
作者姓名：
Zefeng Yu;Chenghang Han;Hang Yang;Yu Wang;Shan Tang;Xu Guo
作者机构：
The State Key Laboratory of Structural Analysis for Industrial Equipment,Department of Engineering Mechanics,Dalian University of Technology,Dalian,116023,China;International Research Center for Computational Mechanics,Dalian University of Technology,Dalian,116023,China;Ningbo Institute of Dalian University of Technology,Ningbo,315016,China
文献出处：
引用格式：
[1]Zefeng Yu;Chenghang Han;Hang Yang;Yu Wang;Shan Tang;Xu Guo-.Elastoplastic constitutive modeling under the complex loading driven by GRU and small-amount data)[J].力学快报（英文）,2022(06):389-394
A类：
B类：
Elastoplastic,constitutive,modeling,under,complex,loading,driven,by,GRU,small,amount,data,In,this,paper,method,three,dimensional,engineering,cyclic,one,stress,strain,proposed,obtained,uniaxial,different,history,learned,offline,gate,recurrent,unit,network,embedded,into,general,finite,ele,ment,framework,through,expansion,from,dimensions,which,can,perform,updates,setting,then,adopted,solutions,boundary,value,problems,structures,Compared,direct,numerical,simulations,using,J2,plasticity,response,beam,elastoplastic,materials,forward,reverse,were,predicted,accurately,Loading,path,dependent,was,captured,effectiveness,ified,shortcomings,also,discussed
AB值：
0.550033
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