A constitutive model of OSB and its application in finite element analysis

Zhu, E.C., Guan, Z., Rodd, P.D. and Pope, D.J. (2005) A constitutive model of OSB and its application in finite element analysis European Journal of Wood and Wood Products, 63 (2). pp. 87-93. ISSN 0018-3768

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Abstract

Experiments were conducted to determine some of the material properties of OSB. Tests covered three in-plane board directions and the through thickness direction. Results showed that OSB is an orthotropic material with better material properties in the direction of strand orientation. OSB in tension behaves almost linearly up to failure, whilst in compression it exhibits plasticity. This plasticity needs to be taken into account in nonlinear finite element analysis in order to simulate the structural behaviour of OSB appropriately. An elasto-plastic constitutive model for OSB in compression was established, based on the statistics of test results. The model was used in the FE simulation of a load test on a compression specimen and a nonlinear buckling analysis of an OSB webbed timber I-beam. The close prediction of behaviour of both specimens was considered to act as validation of the proposed constitutive model.

Item Type: Journal article
Uncontrolled Keywords: OSB; Plasticity; Constitutive model; Finite element
Subjects: H000 Engineering > H200 Civil Engineering > H210 Structural Engineering
H000 Engineering > H200 Civil Engineering
DOI (a stable link to the resource): 10.1007/s00107-004-0513-y
Faculties: Faculty of Science and Engineering > School of Environment and Technology > Ground water and structural engineering
Faculty of Science and Engineering > School of Environment and Technology
Depositing User: editor environment
Date Deposited: 13 Oct 2010 09:30
Last Modified: 16 Oct 2014 16:16
URI: http://eprints.brighton.ac.uk/id/eprint/7724

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