Log In

Come Join Us!

Are you an
Engineering professional?
Join Eng-Tips Forums!
  • Talk With Other Members
  • Be Notified Of Responses
    To Your Posts
  • Keyword Search
  • One-Click Access To Your
    Favorite Forums
  • Automated Signatures
    On Your Posts
  • Best Of All, It's Free!

*Eng-Tips's functionality depends on members receiving e-mail. By joining you are opting in to receive e-mail.

Posting Guidelines

Promoting, selling, recruiting, coursework and thesis posting is forbidden.

Students Click Here

Crack propagation under compression load

Crack propagation under compression load

Crack propagation under compression load

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

RE: Crack propagation under compression load

Maybe when you release the load the crack propogates due to residual tensile stresses.


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

Thanks Corus and Phanhung for your responses. But I don't understand what is meant by Corus and even the tip from Phanhung to take a look at other parameters, did you eventually succeeded to obtain the new crack tip which moved due to loading application that we apply in the model? Should we edit the model to apply the limit strength of our material? last time I was trying to apply *damage initiation, but I could not run the analysis properly, I got error message, that this application only for cohesive element.


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.


Red Flag This Post

Please let us know here why this post is inappropriate. Reasons such as off-topic, duplicates, flames, illegal, vulgar, or students posting their homework.

Red Flag Submitted

Thank you for helping keep Eng-Tips Forums free from inappropriate posts.
The Eng-Tips staff will check this out and take appropriate action.

Reply To This Thread

Posting in the Eng-Tips forums is a member-only feature.

Click Here to join Eng-Tips and talk with other members! Already a Member? Login


Taking Control of Engineering Documents
This ebook covers tips for creating and managing workflows, security best practices and protection of intellectual property, Cloud vs. on-premise software solutions, CAD file management, compliance, and more. Download Now
The Great Project Profitability Debate
A/E firms have a great opportunity to lead the world into the future, but the industry’s greatest asset—real-time data—is sitting wasted in clunky, archaic ERP platforms. Learn how real-time, fully interactive dashboards in a modern ERP allow you to unlock data that will shape the future of the world. Download Now

Close Box

Join Eng-Tips® Today!

Join your peers on the Internet's largest technical engineering professional community.
It's easy to join and it's free.

Here's Why Members Love Eng-Tips Forums:

Register now while it's still free!

Already a member? Close this window and log in.

Join Us             Close