Thank you. You are the only one that explains the physical meaning of damage parameters required by ABAQUS, at least the only one I have found. Great work
Very Informative Ditho. I like the level of detail. One suggestion for those relatively new to FEA: it is always a good idea to check the mesh quality for errors and warnings, after meshing. There is a Verify Mesh icon (the one with the check mark on it) in the Mesh Module.
Thank you so much for your informative and useful tutorial. That was exactly the kind of video I was looking for to learn how to do fracture simulation damage. I enjoyed your detailed explanations; plz keep up the good work!
Thank you so much for this valuable tutorial. I was wondering if you could mention a scientific reference for using this damage model (for metals) on polymers?
First of all, I would like to Thank you for describing DP model as well as Ductile damage in simplest way possible. I am using the same model and technique on a different material. However, I would like to discuss one or two things in detail. Do let me know, how can I reach out to you.
thanks for the video, I just have one question regarding material model: is it enough to have damage parameters just for only one triaxiality case? As you know, the stress state can vary at different positions.
when you model, nothing is enough... in the end it depends on what you want to model specifically. if your case is tension dominated.. maybe one triaxiality data is enough... if your model is nonuniform, maybe putting 3 triaxiality cases is enough... but then strain rate is not uniform? then need triaxiality data for various strain rates? then the temperature is not uniform? then triaxiality data for various temperatures..? got the point? it really depends on things that matter for your simulations... so you really need to see what you want to see. LOL
Thank you for the video, it has lots of valuable information and has helped me understand some questions that i had. I am still unsure how to determine the effective plastic strain in order to obtain displacement at failure. Your example you give 100% but 100% relative to what? Thank you, I hope you can help me ask this question and great job!
at the end, you can do trial and error to find this values that match your experimental curves, for examples... 100% is strain... so relative to what? it's a strain... relative to its original length of course LOL. but here.. strain is 2 parts, elastic and plastic... 100% I mentioned is only the plastic part... but again, get this value by calibrating (trial and error) to match your experimental curves
