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Mesh objective modeling of cracks using continuous linear strain and displacement interpolations

Author
Cervera, M.; Chiumenti, M.; Codina, R.
Type of activity
Journal article
Journal
International journal for numerical methods in engineering
Date of publication
2011-09
Volume
87
Number
10
First page
962
Last page
987
DOI
https://doi.org/10.1002/nme.3148 Open in new window
URL
http://onlinelibrary.wiley.com/doi/10.1002/nme.3148/abstract Open in new window
Abstract
The paper addresses the problem of tensile and mixed-mode cracking within the so-called smeared crack approach. Because lack of point-wise convergence on stresses is deemed as the main difficulty to be overcome in the discrete problem, a (stabilized) mixed formulation with continuous linear strain and displacement interpolations is used. The necessary convergence rate can be proved for such a formulation, at least in the linear problem. Two standard local isotropic Rankine damage models with str...
Keywords
local damage models, mesh independence, mixed finite elements, mixed-mode cracking, stabilization, tensile cracking
Group of research
(MC)2 - Group of Computational Mechanics on Continuous Medium
(MC)2 - UPC Computational continuum mechanics
ANiComp - Numerical analysis and scientific computation

Participants