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A précis of some recent developments in computational failure mechanics


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Conference Object

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Authors

De Borst, R 
Askes, H 
Gutierrez, MA 
Remmers, JJC 
Wells, GN 

Abstract

A concise overview is given of various numerical methods that can be used to analyse localisation and failure in engineering materials. The importance of the cohesive-zone approach is emphasised and various ways of incorporating the cohesive-zone methodology in discretisation methods are discussed. Next, a simple continuum damage (decohesion) model which preserves well-posedness of boundary value problems via gradient enhancement is recalled. Using a meshless method the importance of the higher-order gradient terms is assessed. Finally, the model is used in finite element reliability analyses to quantify the probability of the emergence of various possible failure modes.

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Keywords

localisation, cohesive zones, discontinuities, meshless methods, random imperfections

Journal Title

International Journal of Numerical Methods in Heat and Fluid Flow

Conference Name

Fifth World Congress on Computational Mechanics (WCCM V)

Journal ISSN

0961-5539

Volume Title

14

Publisher

MCB University Press

Publisher DOI

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