THE NUMERICAL SIMULATIONSTUDY SPANNING THE CONTINUUM/ATOMS SCALEON THE TYPE Ⅰ EDGE CRACK PROPAGATION PROCESS IN SINGLE CRYSTAL SILVERBASED ON THEDISPLACEMENT CONNECTION
SONG Kun
WANG LuSheng
LIU Bo
DING Jun
HUANG Xia
HE XiaoJin
Abstract：The study on deformation and failure mechanism of materials,and the progressofNEMS/MEMStechnology and biotechnologypromote the development of multi-scale analysis method.However,Multi-scale connectionisthe key of multi-scale model.The finite element method (FEM) and molecular dynamics simulation (MD) were combined to simulate the multi-scale models,and the stress intensity factors (SIF) and displacement mechanics parameters were adopted to connect and convertthecontinuum region and discrete molecular dynamics region,then three multi-scale model of two-dimensional silver crack propagationwasestablished to obtain the crack tip trajectory and the micro-scale crackpropagationprocess.The result is in good agreement with theory and experiment,and proves the rationality of the method.
Keywords：SilverplateCrack propagationDisplacement couplingMulti-scale numerical simulation
Publication Date：2018-01-01
Online Publishing Date：2026-09-12(First online date of this platform, not the publication date of the document)
Pages：6( 319-324 )