Plasticity based interface model for failure modelling of unreinforced masonry under cyclic loading

Vietnam Journal of Mechanics

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Field Value
 
Title Plasticity based interface model for failure modelling of unreinforced masonry under cyclic loading
 
Creator Kumar, P. V. S. K.
Rajagopal, Amirtham
Pandey, Manoj
 
Subject plasticity interface model; single yield surface; back stress vector; simplified micro model
 
Description In this work our objective is to understand the failure behaviour of unreinforced masonry under in-plane cyclic loading. For this purpose we proposed a plasticity based interface model consists of a single yield surface criteria which is a direct extension of Mohr-Coulomb criteria with a tension cut and compression cap and a back stress vector is introduced as a mixed hardening law variable  in the adopted yield surface to capture the unloading/reloading behaviour of masonry under cyclic loading. A simplified micromechanical interface modelling approach is adopted to capture all the failure modes of masonry. The integration of the differential constitutive equation is  done by using implicit Euler backward integration approach and the obtained non-linear set of equations are solved by a combined local/global Newton solver. The proposed constitutive model  is implemented in ABAQUS by writing  UMAT (user-defined subroutine) and the obtained numerical results are compared with  experimental results available in the literature.
 
Publisher Publishing House for Science and Technology
 
Contributor
 
Date 2020-09-27
 
Type info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion

 
Format application/pdf
 
Identifier http://vjs.ac.vn/index.php/vjmech/article/view/15479
10.15625/0866-7136/15479
 
Source Vietnam Journal of Mechanics; Vol 42, No 3 (2020); 321-336
Vietnam Journal of Mechanics; Vol 42, No 3 (2020); 321-336
0866-7136
0866-7136
 
Language eng
 
Relation http://vjs.ac.vn/index.php/vjmech/article/view/15479/pdf
 
Rights Copyright (c) 2020 Vietnam Academy of Science and Technology
 

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