Item


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

Wiley

Manager: Ministerio de Economía y Competitividad (Espanya)
Author: Bak, Brian Lau Verndal
Turon Blasco, Albert
Lindgaard, Esben
Lund, Erik
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
Document access: http://hdl.handle.net/10256/13733
Language: eng
Publisher: Wiley
Collection: info:eu-repo/semantics/altIdentifier/doi/10.1002/nme.5117
info:eu-repo/semantics/altIdentifier/issn/2040-7939
info:eu-repo/semantics/altIdentifier/eissn/2040-7947
info:eu-repo/grantAgreement/MINECO//DPI2012-34465/ES/EVALUACION DE COMPOSITES LAMINADOS DE CAPAS FINAS PARA APLICACIONES AERONAUTICAS Y AEROESPACIALES/
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

Subjects

Authors


Warning: Unknown: write failed: No space left on device (28) in Unknown on line 0

Warning: Unknown: Failed to write session data (files). Please verify that the current setting of session.save_path is correct (/var/lib/php5) in Unknown on line 0