Analysis of Finite Strain Anisotropic Elastoplastic Fracture in Thin Plates and Shells
Publication: Journal of Aerospace Engineering
Volume 19, Issue 4
Abstract
A finite element methodology for analyzing fracture in thin shells in the large strain elastoplastic regime is presented. The postlocalization constitutive model is based on a cohesive surface dissipation mechanism. We employ a Kirchhoff-Love shell model (and the corresponding discretization by finite elements) and make use of the extended finite element technique in the (implicit) form of midsurface displacement and director field discontinuities. Applications showing the possibilities of this technique are shown, and the effect of plastic anisotropy in the crack pattern is numerically inspected.
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Acknowledgments
The support of the Office of Naval Research under Grant No. ONRN00014-98-1-0578 is gratefully acknowledged.
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Information & Authors
Information
Published In
Journal of Aerospace Engineering
Volume 19 • Issue 4 • October 2006
Pages: 259 - 270
Copyright
© 2006 ASCE.
History
Received: Nov 22, 2005
Accepted: Apr 11, 2006
Published online: Oct 1, 2006
Published in print: Oct 2006
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