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Simulating masonry wall behaviour using a simplified micro-model approach
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DOI：10.1016/j.engstruct.2017.08.021.png)
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Abstract
En 中文
In this paper, a simplified micro-model approach utilising a combination of plasticity-based constitutive models and the extended finite element method(XFEM) is proposed. The approach is shown to be an efficient means of simulating the three-dimensional non-linear behaviour of masonry under monotonic in-plane, out of plane and cyclic loads. The constitutive models include surface-based cohesive behaviour to capture the elastic and plastic behaviour of masonry joints and a Drucker Prager (DP) plasticity model to simulate crushing of masonry under compression. The novel use of XFEM in simulating crack propagation within masonry units without initial definition of crack location is detailed. Analysis is conducted using standard finite element software (Abaqus 6.13) following a Newton Raphson algorithm solution without employing user-defined subroutines. The capability of the model in terms of capturing nonlinear behaviour and failure modes of masonry under vertical and horizontal loads is demonstrated via comparison with a number of published experimental studies. (C) 2017 Elsevier Ltd. All rights reserved.
Keywords:
Modelling masonry
Surface-based cohesive behaviour
XFEM
Crack propagation
In-plane load
Out of plane load
Cyclic in-plane load
Journal
IF:
6.4
Papers:
2.1W
Citations:
10.3W
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