Journal ArticleDOI
An engineering solution for mesh size effects in the simulation of delamination using cohesive zone models
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TLDR
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.About:
This article is published in Engineering Fracture Mechanics.The article was published on 2007-07-01. It has received 1314 citations till now. The article focuses on the topics: Finite element method & Delamination.read more
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Journal ArticleDOI
Relevance of 3D simulations and sandwich core topology for the modeling of honeycomb core sandwich panels undergoing interfacial crack propagation
Daniel Höwer,Kumar C. Jois,Bradley A. Lerch,Brett A. Bednarcyk,Evan J. Pineda,Stefanie Reese,Jaan-Willem Simon +6 more
TL;DR: In this paper, a cohesive parameter transfer procedure from 2D to 3D (low and high fidelity) is developed to investigate width-dependent effects such as the stress concentrations at the specimen edges, the stress concentration due to the honeycomb core topology, and the thumbnail-shaped crack growth, which in turn begets oscillations of the global load displacement curve.
Journal ArticleDOI
Numerical analysis of the interactive damage mechanisms in two-dimensional carbon fabric-reinforced thermoplastic composites under low velocity impacts
TL;DR: In this article, a novel damage modelling technique based on the cohesive zone method is proposed for interaction of various damage modes, which is more efficient for coupling between failure modes than a co...
Journal ArticleDOI
Linking bilinear traction law parameters to cohesive zone length for laminated composites and bonded joints
TL;DR: In this paper, a theoretical exploration for determining the characteristic length of the cohesive zone for a double cantilever beam (DCB) specimen under mode I loading was conducted, and two traction-separation laws were studied: (i) a law with only a linear elastic stage from zero to full traction strength; and (ii) a bilinear traction law illustrating a progressive softening stage.
Journal ArticleDOI
Fundamental Characteristics of Neuron Adhesion Revealed by Forced Peeling and Time-Dependent Healing.
TL;DR: It was found that NCAMs aggregate into clusters at the neurite-substrate interface, resulting in strong local attachment with an adhesion energy of ∼0.1 mJ/m2 and sudden force jumps in the recorded force-displacement curve.
Journal ArticleDOI
Prediction of through the width delamination growth in post-buckled laminates under fatigue loading using de-cohesive law
TL;DR: In this paper, an interface element based on the cohesive zone method has been developed to simulate delaminatoin growth of post-buckled laminate under fatigue loading, and the model was programmed as the user element and user material by the "User Programmable Features" in ANSYS finite element software.
References
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Journal ArticleDOI
Yielding of steel sheets containing slits
TL;DR: In this article, a relation between extent of plastic yielding and external load applied was investigated, and panels containing internal and edge slits were loaded in tension and lengths of plastic zones were measured.
Analysis of crack formation and crack growth in concrete by means of fracture mechanics and finite elements
TL;DR: In this article, fracture mechanics is introduced into finite element analysis by means of a model where stresses are assumed to act across a crack as long as it is narrowly opened, which may be regarded as a way of expressing the energy adsorption in the energy balance approach.
Journal ArticleDOI
Analysis of crack formation and crack growth in concrete by means of fracture mechanics and finite elements
TL;DR: In this article, fracture mechanics is introduced into finite element analysis by means of a model where stresses are assumed to act across a crack as long as it is narrowly opened, which may be regarded as a way of expressing the energy adsorption in the energy balance approach.
Book ChapterDOI
The mathematical theory of equilibrium cracks in brittle fracture
TL;DR: In this paper, the authors present a unified view of the way basic problems in the theory of equilibrium cracks are formulated and discuss the results obtained thereby, and the object of the theory is the study of the equilibrium of solids in the presence of cracks.
Book
Fracture and Size Effect in Concrete and Other Quasibrittle Materials
Zdeněk P. Bažant,Jaime Planas +1 more
TL;DR: In this paper, the authors used the Weibull-type approach to measure the effect of size effect on structural strength of a crack and its size effect in terms of the number of cracks and the size of the cracks.
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