scholarly journals Convergence of fracture process zone size in cohesive zone modeling

2015 ◽  
Vol 39 (19) ◽  
pp. 5828-5836 ◽  
Author(s):  
Kyungsu Ha ◽  
Hyunil Baek ◽  
Kyoungsoo Park
Keyword(s):  
Cohesive Zone ◽  
Fracture Process ◽  
Fracture Process Zone ◽  
Process Zone ◽  
Cohesive Zone Modeling ◽  
Zone Size ◽  
Zone Modeling

Analysis of Energy Balance When Using Cohesive Zone Models to Simulate Fracture Processes

2002 ◽  
Vol 124 (4) ◽  
pp. 440-450 ◽  
Author(s):  
C. Shet ◽  
N. Chandra
Keyword(s):  
Cohesive Energy ◽  
Cohesive Zone ◽  
Strain Energy ◽  
Fracture Process ◽  
Fracture Process Zone ◽  
Process Zone ◽  
Elastic Strain Energy ◽  
Inelastic Strain ◽  
External Work ◽  
Cohesive Zone Models

Cohesive Zone Models (CZMs) are being increasingly used to simulate fracture and fragmentation processes in metallic, polymeric, and ceramic materials and their composites. Instead of an infinitely sharp crack envisaged in fracture mechanics, CZM presupposes the presence of a fracture process zone where the energy is transferred from external work both in the forward and the wake regions of the propagating crack. In this paper, we examine how the external work flows as recoverable elastic strain energy, inelastic strain energy, and cohesive energy, the latter encompassing the work of fracture and other energy consuming mechanisms within the fracture process zone. It is clearly shown that the plastic energy in the material surrounding the crack is not accounted in the cohesive energy. Thus cohesive zone energy encompasses all the inelastic energy e.g., energy required for grainbridging, cavitation, internal sliding, surface energy but excludes any form of inelastic strain energy in the bounding material.

Fracture process zone size and true fracture energy of concrete using acoustic emission

2010 ◽  
Vol 24 (4) ◽  
pp. 479-486 ◽  
Author(s):  
S. Muralidhara ◽  
B.K. Raghu Prasad ◽  
Hamid Eskandari ◽  
B.L. Karihaloo
Keyword(s):  
Acoustic Emission ◽  
Fracture Energy ◽  
Fracture Process ◽  
Fracture Process Zone ◽  
Process Zone ◽  
Zone Size ◽  
True Fracture

Fracture process zone modeling of monolithic Al2O3

1999 ◽  
Vol 63 (2) ◽  
pp. 115-129 ◽  
Author(s):  
Z.K Guo ◽  
A.S Kobayashi ◽  
J.C Hay ◽  
K.W White
Keyword(s):  
Fracture Process ◽  
Fracture Process Zone ◽  
Process Zone ◽  
Zone Modeling

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
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