Large Deformation Dynamic Meshfree Simulation of Damage and Failure in Geomaterials

Abstract:

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An explicit dynamic Galerkin meshfree formulation under the updated Lagrangian framework is presented to simulate large deformation damage and failure process in geomaterials. The failure initiation and development are characterized by the pressure sensitive Drucker-Prager plasticity coupled with the isotropic energy-based damage theory. A stabilized conforming nodal integration based on non-local gradient smoothing is employed to improve the computational efficiency and to regularize the material instability arising from strain localization. The capability of the proposed methodology to model the evolution of dynamic failure in geomaterials is demonstrated through a numerical example.

Info:

Periodical:

Key Engineering Materials (Volumes 324-325)

Edited by:

M.H. Aliabadi, Qingfen Li, Li Li and F.-G. Buchholz

Pages:

141-144

DOI:

10.4028/www.scientific.net/KEM.324-325.141

Citation:

D. D. Wang "Large Deformation Dynamic Meshfree Simulation of Damage and Failure in Geomaterials", Key Engineering Materials, Vols. 324-325, pp. 141-144, 2006

Online since:

November 2006

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Price:

$35.00

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