The finite element formulation for a 2D quadratic cohesive element and its program implementation of UEL in ABAQUS
Received:August 05, 2018  Revised:October 11, 2018
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DOI:10.7511/jslx20180805001
KeyWord:cohesive zone model  interface element  finite element method  ABAQUS  UEL
     
AuthorInstitution
刘敏 武汉理工大学 理学院 工程结构与力学系, 武汉
李旭 武汉理工大学 理学院 工程结构与力学系, 武汉 ;武汉理工大学 理学院 新材料力学理论与应用湖北省重点实验室, 武汉
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Abstract:
      Based on the standard finite element theory,and by employing the intrinsic cohesive zone modeling approach,a new 2D quadratic interface element is formulated to take into account large displacements.The displacement mode,force vector and stiffness matrix represented by shape functions have been obtained.Correspondingly,this element is programmed as a UEL subroutine in ABAQUS software.Several computational examples are investigated to verify the element implementation,and numerical results show its validity and accuracy.This can provide references for conducting simulation works or developing other interface element related to cohesive zone model in ABAQUS package.