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Open AccessJournal ArticleDOI

A fatigue degradation law for cohesive interface elements – Development and application to composite materials

Paul W Harper, +1 more
- 20 Apr 2010 - 
- Vol. 32, Iss: 11, pp 1774-1787
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TLDR
In this paper, a cohesive zone interface element degradation law is presented for analyzing delamination crack propagation under cyclic loading, based on a detailed study of the numerical cohesive zone and the extraction of strain energy release rate from this zone, enabling a direct link with experimental Paris Law data.
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This article is published in International Journal of Fatigue.The article was published on 2010-04-20 and is currently open access. It has received 206 citations till now. The article focuses on the topics: Fracture mechanics & Strain energy release rate.

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Citations
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Journal ArticleDOI

Methods for the prediction of fatigue delamination growth in composites and adhesive bonds: A critical review

TL;DR: In this paper, an overview of the development of methods for the prediction of fatigue driven delamination growth over the past 40 years is given, and four categories of methods are identified: stress/strain-based models, fracture mechanics based models, cohesive zone models, and models using the extended finite element method.
Journal ArticleDOI

Modelling discrete failures in composites with interface elements

TL;DR: In this paper, the application of cohesive zone interface elements to modeling discrete matrix dominated failures in polymer composites is reviewed, and it is shown that because they can accurately represent the physical mechanisms controlling damage development and failure, they are able to give excellent simulations of a wide variety of phenomena including delamination, laminate in-plane failure, behaviour at notches, impact damage and structural failure due to debonding.
Journal ArticleDOI

The fatigue of carbon fibre reinforced plastics - A review

TL;DR: In this paper, the authors provide the most relevant and up-to-date information on the fatigue of carbon fiber reinforced plastics (CFRP), focusing on defining fatigue and the mechanics of cyclically loaded composites, elucidating the fatigue response and fatigue properties of CFRP in different forms.
Journal ArticleDOI

A crack tip tracking algorithm for cohesive interface element analysis of fatigue delamination propagation in composite materials

TL;DR: In this paper, a novel approach is proposed for the use of cohesive elements in the analysis of delamination propagation in composite materials under high-cycle fatigue loading, which is applicable to delamination propagations within the Paris-law regime and is suitable for analysis of three-dimensional structures typical of aerospace applications.
References
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Journal ArticleDOI

An engineering solution for mesh size effects in the simulation of delamination using cohesive zone models

TL;DR: In this paper, a methodology to determine the constitutive parameters for the simulation of progressive delamination is proposed, which accounts for the size of a cohesive finite element and the length of the cohesive zone to ensure the correct dissipation of energy.
Journal ArticleDOI

Numerical simulation of mixed-mode progressive delamination in composite materials

TL;DR: In this paper, a new decohesion element with the capability of dealing with crack propagation under mixed-mode loading is proposed and demonstrated, which is used at the interface between solid finite elements to model the initiation and non-self-similar growth of delaminations in composite materials.
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Finite element interface models for the delamination analysis of laminated composites: mechanical and computational issues

TL;DR: In this paper, a finite element analysis of delamination in laminated composites is addressed using interface elements and an interface damage law, where the principles of linear elastic fracture mechanics are indirectly used by equating the area underneath the traction/relative displacement curve to the critical energy release rate of the mode under examination.
Journal ArticleDOI

Quadratic Stress Criterion for Initiation of Delamination

TL;DR: In this article, the Quadratic Delamination Criterion (QDC) was proposed to compare the calculated out-of-plane interlaminar stresses to their related strength param eters.
Journal ArticleDOI

An irreversible cohesive zone model for interface fatigue crack growth simulation

TL;DR: In this paper, the authors used an irreversible constitutive equation for the cyclic interface traction-separation behavior within the cohesive zone model (CZM) approach to study fatigue crack growth (FCG) along an interface.
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