scholarly journals Using a cohesive zone modeling to predict the compressive and tensile behavior on the failure load of single lap bonded joint

2019 ◽  
Vol 13 (50) ◽  
pp. 112-125
Author(s):  
Badr Benamar ◽  
Mohamed Mokhtari ◽  
Kouider Madani ◽  
Habib Benzaama
Keyword(s):  
Cohesive Zone ◽  
Failure Load ◽  
Tensile Behavior ◽  
Cohesive Zone Modeling ◽  
Bonded Joint ◽  
Zone Modeling

scholarly journals Investigation of Defect Effects on Adhesively Bonded Joint Strength Using Cohesive Zone Modeling

2018 ◽  
Vol 68 (3) ◽  
pp. 5-24
Author(s):  
Jamal-Omidi Majid ◽  
Mohammadi Suki Mohammad Reza
Keyword(s):  
Material Properties ◽  
Cohesive Zone ◽  
Joint Strength ◽  
Adhesive Layer ◽  
Cohesive Zone Modeling ◽  
Adhesively Bonded ◽  
Bonded Joint ◽  
Degraded Material ◽  
Zone Modeling ◽  
Adhesively Bonded Joint

AbstractIn this paper, effects of the defect in an adhesively bonded joint have been investigated using cohesive zone modeling. Consequently, a 3D finite element model of a single lap-joint is constructed and validated with experiments. Strength prediction of current model is found desirable. Accordingly, different sizes of square shape defects are imported to model in the form of changing (raised or degraded) material properties (heterogeneity) and locally delaminated areas (as inclusion/void), respectively. Joint strength is investigated and a stress analysis is carried out for adhesive layer and adherends. Obtained Results show that, defect has significant impact on the results. It is found that at constant size of defect, local delamination has more impact on bonded joint strength than the heterogeneity. Furthermore, stress analyses demonstrate that the stress field does not change in adherends by taking defects into account. However, stress values decrease with degraded material properties and joint’s strength. Through evaluation of peel and transverse shear stresses in adhesive layer it is found that there is a change of stress distribution for both types of defects. Whereas, there is a considerable stress concentration in the delaminated adhesive layer.

scholarly journals Selected Aspects of Cohesive Zone Modeling in Fracture Mechanics

Metals ◽  
2021 ◽  
Vol 11 (2) ◽  
pp. 302
Author(s):  
Wiktor Wciślik ◽  
Tadeusz Pała
Keyword(s):  
Cohesive Zone ◽  
Mixed Mode ◽  
Review Paper ◽  
Failure Process ◽  
Cohesive Zone Modeling ◽  
Mixed Mode Loading ◽  
Cohesive Models ◽  
Cohesive Modeling ◽  
Zone Modeling ◽  
Intensive Development

This review paper discusses the basic problems related to the use of cohesive models to simulate the initiation and development of failure in various types of engineering issues. The most commonly used cohesive zone models (CZMs) are described. Recent achievements in the field of cohesive modeling are characterized, with particular emphasis on the problem of mixed mode loading, the influence of the strain rate, the stress state triaxiality, and fatigue. A separate chapter of the work is devoted to the identification of cohesive parameters. Examples of the use of CZMs for the analysis of the fracture and failure process in various applications, both on the macro and microscopic scale, are given. The directions of CZMs development were indicated as well as the issues that are currently under particularly intensive development.

scholarly journals Cohesive Zone Modeling for Predicting Interfacial Delamination in over mold Components

2021 ◽  
Vol 1128 (1) ◽  
pp. 012018
Author(s):  
M Sai Krishnan ◽  
S Jeyanthi ◽  
Pradeep Kumar Mani ◽  
K T Hareesh ◽  
M. C Lenin Babu
Keyword(s):  
Cohesive Zone ◽  
Cohesive Zone Modeling ◽  
Interfacial Delamination ◽  
Zone Modeling

Failure simulation in resistance spot-welded lap-joints using cohesive zone modeling

2018 ◽  
Vol 25 (11) ◽  
pp. 2567-2577 ◽  
Author(s):  
Mohammad Ali Saeimi Sadigh ◽  
Gholamreza Marami ◽  
Bahman Paygozar
Keyword(s):  
Cohesive Zone ◽  
Lap Joints ◽  
Cohesive Zone Modeling ◽  
Resistance Spot ◽  
Failure Simulation ◽  
Zone Modeling ◽  
Spot Welded

Enhancing the predictive capabilities of a composite plasticity model using cohesive zone modeling

2019 ◽  
Vol 121 ◽  
pp. 1-17 ◽  
Author(s):  
Bilal M. Khaled ◽  
Loukham Shyamsunder ◽  
Nathan Holt ◽  
Christian G. Hoover ◽  
Subramaniam D. Rajan ◽  
...  
Keyword(s):  
Cohesive Zone ◽  
Cohesive Zone Modeling ◽  
Plasticity Model ◽  
Zone Modeling
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