Comparison of computational predictions of material failure using nonlocal damage models

2004 ◽  
Vol 41 (3-4) ◽  
pp. 1021-1037 ◽  
Author(s):  
Huang Yuan ◽  
Jian Chen
Keyword(s):  
Material Failure ◽  
Nonlocal Damage ◽  
Damage Models ◽  
Computational Predictions

About Elastoplastic Nonlocal Formulations with Damage Gradients

2009 ◽  
Vol 20 (6) ◽  
pp. 845-875 ◽  
Author(s):  
D. Sornin ◽  
K. Saanouni
Keyword(s):  
Mesh Size ◽  
Industrial Applications ◽  
Nonlocal Damage ◽  
Damage Models ◽  
Mesh Dependency ◽  
Tension Tests ◽  
Simple Tension ◽  
Elastoplastic Damage

FEM results of softening materials are well known to show pathological mesh dependency. The main goal of this work is to revisit and propose efficient nonlocal damage gradient enhanced formulations able to avoid mesh dependency in the context of elastoplastic damage models with destination to industrial applications. This formulation is presented and studied for simple tension tests, with various spatial discretizations. Numerical aspects and implementation in ABAQUS-standard environment are discussed. The structure of the nonlocal element needed for those formulations is presented. For a given set of meshes, the ability of the proposed formulation to control the size of the necking zone is studied. In the same time the independence of the global dissipation to the mesh size is checked. Theoretical and practical limits of the proposed approach are highlighted.

Composite layered materials: Anisotropic nonlocal damage models

2007 ◽  
Vol 196 (41-44) ◽  
pp. 4272-4282 ◽  
Author(s):  
Norbert Germain ◽  
Jacques Besson ◽  
Frédéric Feyel
Keyword(s):  
Layered Materials ◽  
Nonlocal Damage ◽  
Damage Models

Microscale analysis of heterogeneous ductile materials with nonlocal damage models of integral type

2018 ◽  
Vol 201 ◽  
pp. 37-57 ◽  
Author(s):  
F.J.P. Reis ◽  
I.A. Rodrigues Lopes ◽  
F.M. Andrade Pires ◽  
F.X.C. Andrade
Keyword(s):  
Integral Type ◽  
Nonlocal Damage ◽  
Ductile Materials ◽  
Damage Models
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