Parametric study on the capability of three-dimensional finite element analysis (3D-FEA) of compressive behaviour of Douglas fir

Jung-Pyo Hong; Jun-Jae Lee; Hwanmyeong Yeo; Chul-Ki Kim; Sung-Jun Pang; Jung-Kwon Oh

doi:10.1515/hf-2015-0151

Article

Parametric study on the capability of three-dimensional finite element analysis (3D-FEA) of compressive behaviour of Douglas fir

Jung-Pyo Hong , Jun-Jae Lee , Hwanmyeong Yeo , Chul-Ki Kim , Sung-Jun Pang and Jung-Kwon Oh

Published/Copyright: October 24, 2015

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From the journal Holzforschung Volume 70 Issue 6

Abstract

This study is aiming at the simulation of wood compression (C) at a macroscopic level by means of a three-dimensional finite element analysis (3D-FEA) of solid wood and evaluation of the capability and limitations of this approach. C-Tests were carried out on Douglas fir according to ASTM D 143. The specimens included the 25×25×100 mm³ cuboid bars for longitudinal (L), radial (R) and tangential (T) directions and the conventional 50×50×150 mm³ blocks for the perpendicular to grain (⊥) direction. Two sets of wood parameters were developed and the 3D-FEA was implemented for the two types of specimens. The 3D-FEA worked successfully provided that the stress state coming from the total wood C was uniform. However, in case of the dominance of local compressive behaviour such as bearing, crushing and fibre shear, a microscopic-level modelling technique is needed for correction of the material parameters. More details on the limitations and difficulties of 3D-FE implementation for wood were discussed.

Keywords: bearing behaviour; compression test; modulus of elasticity (MOE); physical parameters; plasticity; three-dimensional finite element analysis (3D-FEA); yield stress (YS)

Corresponding author: Jung-Kwon Oh, Research Institute for Agriculture and Life Science, Department of Forest Sciences, Seoul National University, Seoul, Korea, e-mail: jkoh75@hotmail.com

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Received: 2015-7-2

Accepted: 2015-9-29

Published Online: 2015-10-24

Published in Print: 2016-6-1

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https://doi.org/10.1515/hf-2015-0151

Keywords for this article

bearing behaviour; compression test; modulus of elasticity (MOE); physical parameters; plasticity; three-dimensional finite element analysis (3D-FEA); yield stress (YS)