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deal with strain gradient by abaqus
dear everyone,
I want to ask if anyone deal with strain gradient proposed
by fleck eat. in 1994 and 1997, using subroutine in ABAQUS ?
I have read the manul of abaqus for a couple of days.Here
is my problem. It does not provide extra freedom for user
except 12 freedom booked in the abaqus,such as 1 ,2
representing x-displacement and y-displacement,
is that ringht ? if I use the rotation freedom ,
it need extra force such as blending ,if not ,the stiff matrix
will not be symmetrical. when I put strain gradient into SVARS
options ,strain gradient will not be coupled into control
equation which means it will not be coupled into Virtual
power ? I do not know is that any way to solve the problem .
can you fix a way for me ?
gary
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Comments
strain gradient plasticity
I'm dealing with the same problem. I'm also using the same UMAT. You can get all the information from the DSTRAN variable that is passed in from abaqus to UMAT.
Did you get any further in this?
PhD student
University of Manchester
david.gonzalez@postgrad.manchester.ac.uk