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A simulation method for high-cycle fatigue-driven delamination using a cohesive zone model

A novel computational method for simulating fatigue-driven mixed-mode delamination cracks in laminated structures under cyclic loading is presented. The proposed fatigue method is based on linking a cohesive zone model for quasi-static crack growth and a Paris’ law-like model described as a function of the energy release rate for the crack growth rate during cyclic loading. The J-integral has been applied to determine the energy release rate. Unlike other cohesive fatigue methods, the proposed method depends only on quasi-static properties and Paris’ law parameters without relying on parameter fitting of any kind. The method has been implemented as a zero-thickness eight-node interface element for Abaqus and as a spring element for a simple finite element model in MATLAB. The method has been validated in simulations of mode I, mode II, and mixed-mode crack loading for both self-similar and non-self-similar crack propagation. The method produces highly accurate results compared with currently available methods and is capable of simulating general mixed-mode non-self-similar crack growth problems

The work was supported by the Danish Centre for Composite Structures and Materials forWind Turbines (DCCSM), grant no. 09-067212 from the Danish Strategic Research Council. This support is gratefully acknowledged. The second author acknowledges the support of the Spanish government through the Ministerio de Economía y Competitividad under the contract DPI2012-34465

© International Journal for Numerical Methods in Engineering, 2016, vol. 106, núm. 3, p. 163-191

Wiley

Manager: Ministerio de Economía y Competitividad (Espanya)
Author: Bak, Brian L V
Turon Blasco, Albert
Lindgaard, Esben
Lund, Erik
Date: 2016 April 20
Abstract: A novel computational method for simulating fatigue-driven mixed-mode delamination cracks in laminated structures under cyclic loading is presented. The proposed fatigue method is based on linking a cohesive zone model for quasi-static crack growth and a Paris’ law-like model described as a function of the energy release rate for the crack growth rate during cyclic loading. The J-integral has been applied to determine the energy release rate. Unlike other cohesive fatigue methods, the proposed method depends only on quasi-static properties and Paris’ law parameters without relying on parameter fitting of any kind. The method has been implemented as a zero-thickness eight-node interface element for Abaqus and as a spring element for a simple finite element model in MATLAB. The method has been validated in simulations of mode I, mode II, and mixed-mode crack loading for both self-similar and non-self-similar crack propagation. The method produces highly accurate results compared with currently available methods and is capable of simulating general mixed-mode non-self-similar crack growth problems
The work was supported by the Danish Centre for Composite Structures and Materials forWind Turbines (DCCSM), grant no. 09-067212 from the Danish Strategic Research Council. This support is gratefully acknowledged. The second author acknowledges the support of the Spanish government through the Ministerio de Economía y Competitividad under the contract DPI2012-34465
Format: application/pdf
Citation: 025206
ISSN: 2040-7939 (versió paper)
2040-7947 (versió electrònica)
Document access: http://hdl.handle.net/10256/13733
Language: eng
Publisher: Wiley
Collection: MINECO/PN 2013-2015/DPI2012-34465
Reproducció digital del document publicat a: http://dx.doi.org/10.1002/nme.5117
Articles publicats (D-EMCI)
Is part of: © International Journal for Numerical Methods in Engineering, 2016, vol. 106, núm. 3, p. 163-191
Rights: Tots els drets reservats
Subject: Materials laminats -- Fatiga
Laminated materials -- Fatigue
Materials laminats -- Fractura
Laminated materials -- Fracture
Mecànica de fractura
Fracture mechanics
Assaigs de materials -- Mètodes de simulació
Materials --T esting -- Simulation methods
Materials compostos -- Deslaminatge
Composite materials -- Delamination
Title: A simulation method for high-cycle fatigue-driven delamination using a cohesive zone model
Type: info:eu-repo/semantics/article
Repository: DUGiDocs

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