Nonlinear Finite Element Modeling of Crack Behavior in Oriented Strand Board Webbed Wood I-Beams with Openings

Abstract

Openings are necessary in oriented strand board webbed wood I-joists to allow electrical wires/service pipes pass through their webs. Sizes and locations of the opening are variable, which could be crucial in some circumstances. There is a high possibility that crack will grow in high stress/strain areas, especially in tension corners of large size openings with square or rectangular shapes. In this paper, nonlinear three-dimensional finite element models, incorporating with orthotropic elastic and perfectly elasto–plastic material behavior, were developed to simulate crack growth in a beam with openings until it collapses. Removal (model change) techniques in