Development of two intrinsic cohesive zone models for progressive interfacial cracking of laminated composites with matching and non-matching cohesive elements

2019 ◽  
Vol 229 ◽  
pp. 111406 ◽  
Author(s):  
Shunhua Chen ◽  
Naoto Mitsume ◽  
Tinh Quoc Bui ◽  
Wei Gao ◽  
Tomonori Yamada ◽  
...  
Keyword(s):  
Cohesive Zone ◽  
Laminated Composites ◽  
Cohesive Elements ◽  
Cohesive Zone Models

Study of mixed mode I/II cohesive zone models of different rank coals

2021 ◽  
Vol 246 ◽  
pp. 107611
Author(s):  
Jianfeng Yang ◽  
Haojie Lian ◽  
Vinh Phu Nguyen
Keyword(s):  
Cohesive Zone ◽  
Mixed Mode ◽  
Mode I ◽  
Cohesive Zone Models

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.

A critical evaluation of cohesive zone models of dynamic fractur

2001 ◽  
Vol 11 (PR5) ◽  
pp. Pr5-43-Pr5-50 ◽  
Author(s):  
M. L. Falk ◽  
A. Needleman ◽  
J. R. Rice
Keyword(s):  
Cohesive Zone ◽  
Critical Evaluation ◽  
Cohesive Zone Models
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