Results 221 to 230 of about 13,246 (265)

The Cohesive Zone Model

2017
According to what has been summarized in the previous chapters, simulations are performed with the Rousselier and the Gurson-Tvergaard-Needleman (GTN) models predicting the crack propagation of the C(T)-specimens with different initial crack positions, i.e., the initial crack located in the BM, in the centre of the FZ and at the interface between the ...
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Analytical solutions for cohesive zone models

Journal of the Mechanics and Physics of Solids, 2002
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Williams, J. G., Hadavinia, H.
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Triaxiality dependent cohesive zone model

Engineering Fracture Mechanics, 2009
Abstract A versatile cohesive zone model to predict ductile fracture at different states of stresses is proposed. The formulation developed for mode-I plane strain accounts for triaxiality of the stress-state explicitly by using basic elastic–plastic constitutive relations combined with two stress-state independent new model parameters.
Anuradha Banerjee, R. Manivasagam
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Rate Dependent Cohesive Zones

1997
Abstract : In work under another contract, we had studied the initiation of mode I tensile cracks (not delamination cracks) that tunnel down individual plies in brittle matrix laminates or woven textiles and then turn into plane cracks spreading across many plies en route to part failure. Under this contract, we unified this modeling with our models of
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On the Cohesive Zone Model for a Finite Crack

International Journal of Fracture, 1999
The paper concentrates on the development of the crack tip model with the cohesive zone in an infinite plate with a finite crack of mode I. The estimation of the length of the cohesive zone and the crack tip opening displacement is based on the comparison of the local stress concentration according to Westergaard's theory with the cohesive stress.
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The size of the cohesive zone at a crack tip

Engineering Fracture Mechanics, 1975
Abstract Although it is markedly dependent on both the stress at the cohesive zone tip and the displacement at the crack tip, the cohesive zone size at the critical stage of crack extension is shown to be relatively insensitive to the detailed form of the force law describing the non-linearity of material behaviour.
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Time Dependent Fracture and Cohesive Zones

Journal of Engineering Materials and Technology, 1993
This presentation is concerned with the fracture response of materials which develop cohesive or bridging zones at crack tips. Of special interest are concerns regarding crack stability as a function of the law which governs the interrelation between the displacement(s) or strain across these zones and the corresponding holding tractions.
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Cohesive zone models

Engineering Fracture Mechanics, 2013
Huang Yuan, Jacques Besson
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An examination of stability in cohesive zone modeling

Computer Methods in Applied Mechanics and Engineering, 2010
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
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Numerical aspects of cohesive-zone models

Engineering Fracture Mechanics, 2003
Abstract The importance of the cohesive-zone approach to analyse localisation and failure in engineering materials is emphasised and various ways to incorporate the cohesive-zone methodology in computational methods are discussed. Numerical representations of cohesive-zone models suffer from a certain mesh bias.
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