MIXED MODE THREE DIMENSIONAL CONTOUR INTEGRAL: FOR WOOD APPLICATION UNDER CREEP LOADING
Résumé
The main goal of this work is to present a new integral for three dimensional crack problems under mixed mode loading. This work is based on a generalization of the M integral proposed initially by Chen and Shield [1] and developed by Moutou Pitti et al. [2] to visco el-stic crack growth process. The aim of this generalization is to propose a new parameter integral entitled which computes the energy release rate combining real and auxiliary displacement fields in orthotropic material such as wood. The energy release rate distribution along the crack front line is calculated and the non-path dependence is proved with the use of numerical application.
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