Home

DCB

Masayuki Wakamatsu's picture

Crack Length in Cohesive Element (ABAQUS vr 6.7.1) in pure MODE I case

Submitted by Masayuki Wakamatsu on Wed, 2008-04-23 03:51.

Help! imechanica!

This might not be a smart question to ask, but if any of you can help me, it'd be great.

 I have a DCB (sandwitch specimen) with a cohesive element in the middle. Studying pure Mode I case, displacement is applied at the end of the DCB. Cohesive element works great (it fails when one reaches max separations).  But I am having a difficulity in extracting crack length (i.e. length of failed cohesive element) vs time step. I looked for Damage and Status commend, but it's not promising.  (I'm pretty new to ABAQUS....)

 If you have worked on cohesive elements, and know where those (filed maybe?) output of failed element lengths can be found, could you please help?

 Thanks~ masa


»
hualiang shi's picture

EM 388F Term Paper: Subcritical Cracking of Low-k Dielectrics

Submitted by hualiang shi on Tue, 2008-04-08 01:46.

Abstract


»
Masayuki Wakamatsu's picture

EM 388F Term Paper: Interface Fracture – Analysis and Numerical Assessment of SAM-SAM Fracture with ABAQUS

Submitted by Masayuki Wakamatsu on Mon, 2008-04-07 15:30.

Abstract


»
justin.babcock's picture

EM 388F Term Paper: Theory and analysis tech for the use of a DCB specimen for determining the toughness of PC-3 Prostate Cancer

Submitted by justin.babcock on Mon, 2008-04-07 02:11.

A double cantilever beam (DCB)
specimen is created by affixing the two halves together using a bi-layer of
PC-3 prostate cancer cells. The specimen is pinned at a bottom corner, and the
upper corner on the same end is displaced with the force-displacement profile
being recorded. This upper corner is displaced until the crack, a portion of
the specimen where cell grown has been selectively inhibited, propagates
through the cell layer. The critical value of force at which the crack
propagates through the cell layer is used, in conjunction with the initial
crack length, to determine the toughness via the compliance-energy method (Ripling, et al. 1971). A method for performing a FE analysis of the


»
Syndicate content