An isogeometric approach to cohesive zone modeling [PDF]
International Journal for Numerical Methods in Engineering, 2010 AbstractThe possibility of enhancing a B‐spline basis with discontinuities by means of knot insertion makes isogeometric finite elements a suitable candidate for modeling discrete cracks. In this contribution we use isogeometric finite elements to discretize the cohesive zone formulation for failure in materials. In the case of a pre‐defined interface,
Verhoosel, C.V. +3 more
openaire +2 more sources
Lifetime evaluation of concrete structures under sustained post-peak loading [PDF]
, 2005 Experimental tests on crack propagation in concrete under constant post-peak loading are simulated using the finite element method and the cohesive crack model, in both Mode I and Mixed-mode conditions.
Silvio Valente +3 more
core +1 more source
Applied Sciences, 2022 The mechanical behaviors of rock masses are significantly affected by the distribution and shape of the holes in it. In this research, the fracture mechanism and the shear properties of rock masses containing holes were investigated by the cohesive zone ...
Yinge Zhu +4 more
doaj +1 more source
A CORRECTED COHESIVE ZONE MODEL IN THE INTERLAMINAR FRACTURE OF COMPOSITE
Jixie qiangdu, 2021 In order to consider both material damage of the crack tip and the initial fracture toughness,a corrected cohesive zone model（ CZM） that considers the influence of material damage of the initial crack propagation has been proposed. The corrected cohesive
JIA YunLong, XU Lin, XIANG Bin
doaj
Numerical investigation of poroelastic effects during hydraulic fracturing using XFEM combined with cohesive zone model [PDF]
E3S Web of Conferences, 2023 Hydraulic fracturing is an effective technology used to stimulate hydrocarbon production from unconventional reservoirs. Numerical simulation of the hydraulic fracturing process plays a key role in the design of hydraulic fracturing.
Ren Xiaoyu +7 more
doaj +1 more source
Cohesive model for fracture simulation of uranium dioxide at high temperature and strain rate [PDF]
Journal of Theoretical, Computational and Applied MechanicsA cohesive zone model is employed to accurately simulate the initiation and propagation of cracks within uranium dioxide fuel under high-temperature and high-strain-rate conditions. This model incorporates two energy-based failure criteria to distinguish
Clément Tosi +3 more
doaj +1 more source
MODELLING OF CRACK PROPAGATION: COMPARISON OF DISCRETE LATTICE SYSTEM AND COHESIVE ZONE MODEL
Acta Polytechnica CTU Proceedings, 2020 Lattice models are often used to analyze materials with discrete micro-structures mainly due to their ability to accurately reflect behaviour of individual fibres or struts and capture macroscopic phenomena such as crack initiation, propagation, or ...
Karel Mikeš +3 more
doaj +1 more source
A cohesive zone model for predicting delamination suppression in z-pin reinforced laminates
, 2011 This paper presents a cohesive zone model based finite element analysis of delamination resistance of z-pin reinforced double cantilever beam (DCB). The main difference between this and existing cohesive zone models is that each z- pin bridging force ...
Francesco Bianchi +3 more
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Effect of Mesh Sensitivity and Cohesive Properties on Simulation of Typha Fiber/Epoxy Microbond Test
Computation, 2020 The microbond test for natural fibers is difficult to conduct experimentally due to several challenges including controlling the gap distance of the blade, the meniscus shape, and the large data spread.
Ikramullah +5 more
doaj +1 more source
Finite element modelling of mode I delamination specimens by means of implicit and explicit solvers [PDF]
, 2012 The simulation of delamination using the Finite Element Method (FEM) is a useful tool to analyse fracture mechanics. In this paper, simulations are performed by means of two different fracture mechanics models: Two Step Extension (TSEM) and Cohesive Zone
Argüelles Amado, Antonio +11 more
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