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
Citations
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Journal ArticleDOI
Decohesion of a rigid flat punch from an elastic layer of finite thickness
Bo Peng,Xi-Qiao Feng,Qunyang Li +2 more
TL;DR: In this paper, the critical pull-off force of a flat rigid punch adhered to an elastic film of finite thickness is studied via asymptotic analysis as well as finite element (FE) simulations.
Journal ArticleDOI
Determination of the mode I crack tip opening rate and the rate dependent cohesive properties for structural adhesive joints using digital image correlation
TL;DR: In this article, the rate-dependent fracture behavior of adhesive joints with either a toughened epoxy or a ductile polyurethane adhesive was investigated under mode I loading rates ranging from 0.1mm/min to 1.0m/s with digital image correlation (DIC) analysis.
Journal ArticleDOI
Thickness effect of carbon nanotube interleaves on free-edge delamination and ultimate strength within a symmetric composite laminate
TL;DR: In this paper, the authors used carbon nanotube (CNT) buckypaper as a modified interleaf and incorporated it into the potential delaminated interfaces within the [±θn]S laminates, and then how the CNT BP affects the interlaminar stress and induces free-edge delamination is considered.
Journal ArticleDOI
Laser Forming of Sandwich Panels With Metal Foam Cores
TL;DR: In this paper, the bending behavior of metal foam sandwich panels, as well as the impact of laser forming on the material properties, were analyzed and the fundamental bending mechanisms that govern bending deformation during laser forming were analyzed.
Simulation of Delamination Propagation in Composites Under High-Cycle Fatigue by Means of Cohesive-Zone Models
TL;DR: In this article, a damage model for the simulation of delamination propagation under high-cycle fatigue loading is proposed, based on a cohesive law that links fracture and damage mechanics to establish the evolution of the damage variable in terms of the crack growth rate.
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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