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Introduction to Cohesive Zone and Modelling DCB Test using Cohesive Elements
Wed, 2008-02-20 06:45 - craime
I am currently working on a project to model DCB test in ABAQUS. My current problem lies in understanding cohesive zone modelling. I was wondering if anyone can forward me a couple of materials regarding the introduction of cohesive zones?
This would help me understand the material greatly and help me in modelling the DCB test.
Another question in ABAQUS: how do you implement the material properties for cohesive elements? in particular, what values should i be using for them? e.g. E, G1, G2?
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You are kindly recommended
You are kindly recommended to read the Abaqus Analysis User's Manual (26.5 Cohesive elements) first.
hello craime
current i m also working on the same project what ur working. i am also searching for the material related to CZM can u send me ur abstract of ur project so that we can share if any c'mom or diferenc is there..?
ashwath.n.r@gmail.com
ashwath@smail.iitm.ac.in
thanks
Ashwath NR
Solid Mechanics Division
Department of Applied Mechanics
Indian Institute of Technology Madras,
chennai-600036
India
A paper on cohesive zone in DCB
Here is a paper on cohesive zone for DCB and other similar specimens:
Z. Suo, G. Bao and B. Fan, "Delamination R-curve phenomena due to damage", J. Mech. Phys. Solids. 40, 1-16
(1992).
This paper describes the effect of large-scale bridge zone size. Hope that this paper helps.
many thanks
Hi all,
Many thanks for all your assistance. I must admit that I was slightly worried when I undertook this project as I have little previous knowledge in this topic. I have managed to find answers to my original questions but at the same time more and more questions also surfaces.
I have read the abaqus user manual several times too. Currently my main problem is actually modelling these cohesive elements in ABAQUS, I too have no previous knowledge in this software and is struggling to make progress. I found that modelling cohesive elements are slightly different and requires several parameters such as damage initiation and damage evolution, as well as elastic traction properties.
I will try to do more research first anyway and hope to have my questions answered soon!