Crack propagation under compression load
Crack propagation under compression load
(OP)
Hi all,
At the moment I have a problem in modelling the plane strain model of a square material (cement mortar) with a pre-existing crack in the middle which form an angle of 45 degree. This plane strain model is subjected to the compression load at the upper part and the lower edge has pinned constraint. When I submitted the job to analyze, the job can be done but I could not see the propagation of this slant crack in the deformed mesh, even though I increase the load which was considered exceed the allowable stress of the material. Anayone has experience with this kind of problem?
Thanks in advance
Utomop
At the moment I have a problem in modelling the plane strain model of a square material (cement mortar) with a pre-existing crack in the middle which form an angle of 45 degree. This plane strain model is subjected to the compression load at the upper part and the lower edge has pinned constraint. When I submitted the job to analyze, the job can be done but I could not see the propagation of this slant crack in the deformed mesh, even though I increase the load which was considered exceed the allowable stress of the material. Anayone has experience with this kind of problem?
Thanks in advance
Utomop





RE: Crack propagation under compression load
corus
RE: Crack propagation under compression load
I have done with it before, and i got the same problem. Then i see that, the load will not effect much to propagation of crack. Just take a look at the others parameters when you define this step.
RE: Crack propagation under compression load
Regards,
Utomop
RE: Crack propagation under compression load
You see, in crack propagation analysis, we have three way to model (please take a look in ABAQUS MANUAL), and in each method, we have to define some parameters and these will affect to the crack propagation. Such as Normal failure stress, shear failure stress (with CRITICAL STRESS), or Critical crack opening displacement, cumulative crack length (with COD). So which kind of method you used for your analysis?, and try with other values of above parameters. That's what i meaned
Hope you will solve your problem soon.
Phanhung