Damage modeling in ABAQUS
Hi, I wanted to clarify a doubt I have while implementing damage models in ABAQUS EXPLICIT
Could any one tell me which of these two relations are correct
SIG_n+1 = SIG_n + STIFFNESS_n+1*(INC_STRAIN_n+1)
SIG_n+1 = STIFFNESS_n+1*(STRAIN_n+1)
It is apparent that the first of the above two seems correct, but with increase in damage the stress levels do not drop to zero, even if damage was set to 1 it remains at a level when damage was first initiated. I wanted to know how should one bring the load carrying capacity to zero when complete damage has occurred.
If the second one is used this is not a problem, but the formulation does not seem correct
A hyperelastic approach will always compute stresses from an elastic potential.
Within damage mechanics, this elastic potential is deteriorated with multiplying it
(1-D). So the second form is OK.
I can suggest you my own manuscripts on ABAQUS implementations of damage models. after they are published 😀
Thanks, for the reply
could you send me the references
Hi Kumar, could you send me the references of your publication
Please nobody help me
Hi every one would you tell me whats going on ?
Actually i teach abaqus in our university but i am like no idea about element re movement in abaqus. how can i start to learn element re movement. if there is any file or any sample of cae file which you used before it will be a great honor if you help an undergraduate student
I mean like this picture that i attached
Please please please ......
There are a number of examples of element removal in the Abaqus manual, have a look at the Rigid projectile impacting eroding plate example.