On the modeling of shear bands formation in J2 materials with damage evolution

Purpose - The purpose of this paper is to model the strain localization in J2 materials with damage evolution using embedded strong discontinuity modes.Design methodology approach - In this procedure, an heuristic bandwidth scale is adopted to model the damage evolution in the shear bands. The bifur...

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Bibliographic Details
Published in:Engineering computations 2011, Vol.28 (2), p.130-153
Main Authors: D'hers, Sebastian, Dvorkin, Eduardo N.
Format: Article
Language:English
Subjects:
Bandwidths
Calibration
Damage
Deformation
Discontinuity
Distortion
Evolution
Finite element method
Heat treating
Heuristic
Localization
Materials science
Mathematical models
Shear loading
Slip bands
Studies
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Description
Summary:Purpose - The purpose of this paper is to model the strain localization in J2 materials with damage evolution using embedded strong discontinuity modes.Design methodology approach - In this procedure, an heuristic bandwidth scale is adopted to model the damage evolution in the shear bands. The bifurcation triggering conditions and band growth directions are studied for these materials.Findings - The resulting formulation does not require a specific mesh refinement to model a localization, provides mesh independent results also insensitive to element distortions and allows calibration of the model response using experimental data. The formulation capability is shown embedding the strong discontinuity modes into quadrilateral and higher order elements.Originality value - The work described in this paper extends the use of strong discontinuity modes to materials with damage evolution.
ISSN:0264-4401
1758-7077
DOI:10.1108/02644401111109196