One of the fundamental aspects in cohesive zone modeling is the definition of the traction-separation relationship across fracture surfaces, which approximates the nonlinear fracture process. Cohesive traction-separation relationships may be classified as either nonpotential-based models or potential-based models. Potential-based models are of special interest in the present review article. Several potential-based models display limitations, especially for mixed-mode problems, because of the boundary conditions associated with cohesive fracture. In addition, this paper shows that most effective displacement-based models can be formulated under a single framework. These models lead to positive stiffness under certain separation paths, contrary to general cohesive fracture phenomena wherein the increase of separation generally results in the decrease of failure resistance across the fracture surface (i.e., negative stiffness). To this end, the constitutive relationship of mixed-mode cohesive fracture should be selected with great caution.
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Yonsei University,
Seoul,
e-mail: k-park@yonsei.ac.kr
Environmental Engineering,
University of Illinois at Urbana-Champaign,
Urbana, IL 61801
e-mail: paulino@illinois.edu
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November 2011
Review Articles
Cohesive Zone Models: A Critical Review of Traction-Separation Relationships Across Fracture Surfaces
Kyoungsoo Park,
Yonsei University,
Seoul,
e-mail: k-park@yonsei.ac.kr
Kyoungsoo Park
School of Civil & Environmental Engineering
,Yonsei University,
50 Yonsei-ro, Seodaemun-gu
,Seoul,
Korea
e-mail: k-park@yonsei.ac.kr
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Glaucio H. Paulino
Environmental Engineering,
University of Illinois at Urbana-Champaign,
Urbana, IL 61801
e-mail: paulino@illinois.edu
Glaucio H. Paulino
1
Department of Civil &
Environmental Engineering,
University of Illinois at Urbana-Champaign,
205 North Mathews Avenue
,Urbana, IL 61801
e-mail: paulino@illinois.edu
1Corresponding author.
Search for other works by this author on:
Kyoungsoo Park
School of Civil & Environmental Engineering
,Yonsei University,
50 Yonsei-ro, Seodaemun-gu
,Seoul,
Korea
e-mail: k-park@yonsei.ac.kr
Glaucio H. Paulino
Department of Civil &
Environmental Engineering,
University of Illinois at Urbana-Champaign,
205 North Mathews Avenue
,Urbana, IL 61801
e-mail: paulino@illinois.edu
1Corresponding author.
Manuscript received July 14, 2011; final manuscript received November 15, 2012; published online February 5, 2013. Editor: Harry Dankowicz.
Appl. Mech. Rev. Nov 2011, 64(6): 060802 (20 pages)
Published Online: February 5, 2013
Article history
Received:
July 14, 2011
Revision Received:
November 15, 2012
Citation
Park, K., and Paulino, G. H. (February 5, 2013). "Cohesive Zone Models: A Critical Review of Traction-Separation Relationships Across Fracture Surfaces." ASME. Appl. Mech. Rev. November 2011; 64(6): 060802. https://doi.org/10.1115/1.4023110
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