Allen, Clive1; Masia, Mark2; Page, Adrian3; Griffith, Michael4 and Ingham, Jason5

1 PhD Student, Centre for Infrastructure Performance and Reliability, The University of Newcastle, University Drive, Callaghan, NSW 2308, Australia, clive.k.allen@gmail.com
2 Associate Professor, Centre for Infrastructure Performance and Reliability, The University of Newcastle, University Drive, Callaghan, NSW 2308, Australia, mark.masia@newcastle.edu.au
3 Emeritus Professor, Centre for Infrastructure Performance and Reliability, The University of Newcastle, University Drive, Callaghan, NSW 2308, Australia, adrian.page@newcastle.edu.au
4 Professor, School of Civil, Environmental and Mining Engineering, The University of Adelaide, Engineering North N136, North Terrace Campus, SA 5005, Australia, michael.griffith@adelaide.edu.au
5 Professor, Department of Civil and Environmental Engineering, University of Auckland, Newmarket Campus, B906- 237, Auckland 1023, New Zealand, j.ingham@auckland.ac.nz

ABSTRACT
This paper presents a numerical investigation into the behaviour of unreinforced clay brick masonry walls with window and door type openings, subjected to in-plane loads. Nonlinear finite element simulations of full scale walls experimentally tested at The University of Newcastle have been undertaken using the commercial finite element analysis software TNO DIANA. In this study, both continuum (total strain fixed-crack) and simplified micro-model (crack-shear-crush) nonlinear finite element modelling strategies have been employed and key parameters including force versus displacement curves, failure modes, and damage patterns have been compared to experimental results.

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