Strain-based transient-gradient damage model for failure analyses

M.G.D. Geers; R. Borst, de; W.A.M. Brekelmans; R.H.J. Peerlings

doi:10.1016/S0045-7825(98)80011-X

Strain-based transient-gradient damage model for failure analyses

M.G.D. Geers, R. Borst, de, W.A.M. Brekelmans, R.H.J. Peerlings

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Abstract

A transient-gradient enhanced damage model has been developed for the numerical modelling of the damage and fracture process within a continuum damage mechanics framework. Some deficiencies of existing gradient enhanced damage formulations for the simulation of macroscopic crack propagation are pointed out. The transient-gradient approach assumes a direct coupling between the material length parameter and the local strain state of the material, which leads to a transient behaviour of the nonlocal effect. Details of the method are presented and fully elaborated in an incremental-iterative solution scheme. Mesh objectivity and physical relevance of the method are analysed by one-dimensional and two-dimensional numerical examples.

Original language	English
Pages (from-to)	133-153
Journal	Computer Methods in Applied Mechanics and Engineering
Volume	160
Issue number	1-2
DOIs	https://doi.org/10.1016/S0045-7825(98)80011-X
Publication status	Published - 1998

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title = "Strain-based transient-gradient damage model for failure analyses",

abstract = "A transient-gradient enhanced damage model has been developed for the numerical modelling of the damage and fracture process within a continuum damage mechanics framework. Some deficiencies of existing gradient enhanced damage formulations for the simulation of macroscopic crack propagation are pointed out. The transient-gradient approach assumes a direct coupling between the material length parameter and the local strain state of the material, which leads to a transient behaviour of the nonlocal effect. Details of the method are presented and fully elaborated in an incremental-iterative solution scheme. Mesh objectivity and physical relevance of the method are analysed by one-dimensional and two-dimensional numerical examples.",

author = "M.G.D. Geers and {Borst, de}, R. and W.A.M. Brekelmans and R.H.J. Peerlings",

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AU - Peerlings, R.H.J.

PY - 1998

Y1 - 1998

N2 - A transient-gradient enhanced damage model has been developed for the numerical modelling of the damage and fracture process within a continuum damage mechanics framework. Some deficiencies of existing gradient enhanced damage formulations for the simulation of macroscopic crack propagation are pointed out. The transient-gradient approach assumes a direct coupling between the material length parameter and the local strain state of the material, which leads to a transient behaviour of the nonlocal effect. Details of the method are presented and fully elaborated in an incremental-iterative solution scheme. Mesh objectivity and physical relevance of the method are analysed by one-dimensional and two-dimensional numerical examples.

AB - A transient-gradient enhanced damage model has been developed for the numerical modelling of the damage and fracture process within a continuum damage mechanics framework. Some deficiencies of existing gradient enhanced damage formulations for the simulation of macroscopic crack propagation are pointed out. The transient-gradient approach assumes a direct coupling between the material length parameter and the local strain state of the material, which leads to a transient behaviour of the nonlocal effect. Details of the method are presented and fully elaborated in an incremental-iterative solution scheme. Mesh objectivity and physical relevance of the method are analysed by one-dimensional and two-dimensional numerical examples.

U2 - 10.1016/S0045-7825(98)80011-X

DO - 10.1016/S0045-7825(98)80011-X

M3 - Article

SN - 0045-7825

VL - 160

SP - 133

EP - 153

JO - Computer Methods in Applied Mechanics and Engineering

JF - Computer Methods in Applied Mechanics and Engineering

IS - 1-2

ER -

Strain-based transient-gradient damage model for failure analyses

Abstract

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