Results 11 to 20 of about 14,867,765 (170)

A CORRECTED COHESIVE ZONE MODEL IN THE INTERLAMINAR FRACTURE OF COMPOSITE

open access: yesJixie 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   +2 more sources

Numerical-Experimental Correlation of Interlaminar Damage Growth in Composite Structures: Setting Cohesive Zone Model Parameters [PDF]

open access: yesAdvances in Materials Science and Engineering, 2019
Composite laminates are characterized by high mechanical in-plane properties while experiencing, on the contrary, a poor out-of-plane response.
F. Di Caprio, S. Saputo, A. Sellitto
doaj   +3 more sources

INVERSION OF PARAMETERS FOR COMPOSITE INTERLAYER COHESIVE ZONE MODEL BY USING ARTIFICIAL BEE COLONY ALGORITHM

open access: yesJixie qiangdu, 2021
Cohesive zone model( CZM) is widely in used integrity evaluation for composites with delamination damage,and accurately obtaining the CZM parameters has important effects on the evaluation results. In this paper,the inversion of CZM parameters is studied,
RAO YuWen   +3 more
doaj   +2 more sources

Mesoscale fracture simulation of recycled aggregate concrete under uniaxial compression based on cohesive zone model

open access: yesDevelopments in the Built Environment
It is important to clarify the uniaxial compressive mechanical properties and fracture mechanism of recycled aggregate concrete (RAC) from a mesoscale perspective for its further application in engineering.
Chunqi Zhu   +4 more
doaj   +2 more sources

Finite element simulation of delamination growth in composite materials using LS-DYNA [PDF]

open access: yes, 2009
In this paper, a modified adaptive cohesive element is presented. The new elements are developed and implemented in LS-DYNA, as a user defined material subroutine (UMAT), to stabilize the finite element simulations of delamination propagation in ...
Elmarakbi, Ahmed   +3 more
core   +2 more sources

On characterization of cohesive zone model (CZM) based upon digital image correlation (DIC) method

open access: yes, 2023
Cohesive zone model (CZM) has been extensively applied in numerical simulation of interfacial fracture behaviors such as composite delamination and fracture of adhesive joints.
Huo, X, Sun, G, Luo, Q, Zheng, G, Li, Q
core   +1 more source

Multi-timescale analysis of fatigue crack growth on interfaces via cohesive-zone models [PDF]

open access: yes, 2014
The paper describes a new non-linear finite-element formulation to analyse fatigue debonding or delamination, along predefined interfaces, which is multi-scale in time. At the small timescale level, cyclic loading and the related oscillating response are
Giulio Alfano, Alfano, G
core   +1 more source

Testing some implementations of a cohesive-zone model at finite strain [PDF]

open access: yes, 2015
This study shows how the results given by a cohesive-zone model at finite strain may depend strongly on its numerical implementation. A two-dimensional four-node cohesive element is considered, which includes several variants depending on a part of the ...
GILORMINI, Pierre, DIANI, Julie
core   +1 more source

A Moving Cohesive Mesh Formulation to Predict Debonding Phenomena in Layered Structures [PDF]

open access: yesComputational Engineering and Physical Modeling, 2018
A new numerical formulation, which combines the Cohesive Zone Model (CZM) approach with the Arbitrary Lagrangian-Eulerian (ALE) methodology to investigate the crack onset and evolution of multilayer composite beams is presented.
Marco Francesco Funari   +2 more
doaj   +1 more source

Research on IGBT Bonding Wires Crack Propagation at the Macro and Micro Scales

open access: yesIEEE Access, 2021
Under the action of a complex and harsh working environment, the damage of the IGBT power module’s packaging interconnection structure is the primary failure mode.
Jun Luo   +4 more
doaj   +1 more source

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