Simulating masonry wall behaviour using a simplified micro-model approach. (15th November 2017)

• Record Type: Journal Article
• Authors: Abdulla, Kurdo F.; Cunningham, Lee S.; Gillie, Martin
• Is Part Of: Engineering structures. Volume 151(2017:Nov. 15)
• Page Start: 349
• Page End: 365
• Publication Date: 2017-11-15
• Subjects: Modelling masonry -- Surface-based cohesive behaviour -- XFEM -- Crack propagation -- In-plane load -- Out of plane load -- Cyclic in-plane load; Structural engineering -- Periodicals; Structural analysis (Engineering) -- Periodicals; Construction, Technique de la -- Périodiques; Génie parasismique -- Périodiques; Pression du vent -- Périodiques; Earthquake engineering; Structural engineering; Wind-pressure; Periodicals; 624.105
• DOI: 10.1016/j.engstruct.2017.08.021
• Languages: English
• ISSNs: 0141-0296

Abstract

Highlights: A combination of plasticity-based constitutive models and XFEM to model masonry. Possible local failure modes of masonry are considered in the model. Crack propagation modelled without initial definition of crack location. Model successfully simulates masonry under in-plane, out of plane and cyclic loads. Abstract: 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 non-linear behaviour and failure modes of masonry under vertical and horizontal loads is demonstrated via comparison with a number of published experimental studies.