Hi All,
I am modelling damage and plasticity in UMAT, ABAQUS.
My main question is that I am wondering why my results like yield stress , ultimate stress will be constant as I have changed the mesh size? For example for mesh size =0.2 and mesh size equal 0.00002.
I would say I model damage and...
Hi,
what is the meaning of that? """Just to mention that again: It is not possible to change the density during the simulation.""
You mean density cannot define as a field variable in the USDFLD? what do you think about the following thread:
http://www.eng-tips.com/viewthread.cfm?qid=385982...
Dear akabarten,
many thanks foe your help.
I wrote USDFLD for E and density based on your previous comments in the following thread:
http://www.eng-tips.com/viewthread.cfm?qid=385982
but I gave different frequency compared with by-hand solution. I think it could related my BC.
actually, BC is...
Hi all
http://www.eng-tips.com/viewthread.cfm?qid=407667
Hi All,
I am going to model density that is changing through the thickness for graded plates.
Before, I wrote UMAT to model variation of elastic modulus through the thickness and I solved my bending problem. But at this moments I want to...
Hi akabarten,
As I search my issue in the net I found that you are expert and can help me to find the solution.I would greatly appreciate if you help me and get advice how can I modell density variation for vibration analysis in abaqus:
I post the following one and i have not received any...
Hi All,
I am going to model density that is changing through the thickness for graded plates.
Before, I wrote UMAT to model variation of elastic modulus through the thickness and I solved my bending problem. But at this moments I want to add density to solve vibration as well.
I dont know how...
Hi All,
I am going to model density that is changing through the thickness for graded plates.
Before, I wrote UMAT to model variation of elastic modulus through the thickness and I solved my bending problem. But at this moments I want to add density to solve vibration as well.
I dont know how...
