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A finite element analysis for the mixed mode crack growth in a viscoelastic and orthotropic medium

✍ Scribed by R. Moutou Pitti; F. Dubois; O. Pop; J. Absi

Publisher
Elsevier Science
Year
2009
Tongue
English
Weight
907 KB
Volume
46
Category
Article
ISSN
0020-7683

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✦ Synopsis

This paper deals with a finite element algorithm for the creep crack growth process in a viscoelastic medium. The main developments focus on the coupling between the M-integral and an incremental formulation for the viscoelastic behavior. In this context, mixed mode configurations are simulated for orthotropic symmetries. An algorithm uncoupling viscoelastic incremental formulation and the fracture procedure is resolved with finite element software. The global approach is validated in terms of the evolution of energy release rate versus time and the advance of cracks. Numerical simulations are based on a Constant Tension Shear model. The insensitivity of the M-integral to the integration domain is shown from creep crack growth simulations for mixed mode configurations.

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