ANSYS - Plastic strain energy
ANSYS - Plastic strain energy
(OP)
Dear all,
I am currently undergoing my dissertaation on non linear FEA of pressure vessels. I am investigating certatin failure criteria of pressure vessels, and one requires me to calculate plastic strain energy for a given applied load parameter, in this case, internal pressure.
I see that ANSYS has a strain energy tool when calculating a solution. I am wondering if there is any way to calculate specific plastic strain energy, as opposed to total strain energy.
Thanks in advance.
Fergus
I am currently undergoing my dissertaation on non linear FEA of pressure vessels. I am investigating certatin failure criteria of pressure vessels, and one requires me to calculate plastic strain energy for a given applied load parameter, in this case, internal pressure.
I see that ANSYS has a strain energy tool when calculating a solution. I am wondering if there is any way to calculate specific plastic strain energy, as opposed to total strain energy.
Thanks in advance.
Fergus





RE: ANSYS - Plastic strain energy
Ansys strain energy SENE includes both elastic and plastic strain energy (link). You could use ETABLE to get plastic strain energy density and volume to calculate the plastic strain energy.
Before solving, remember to include all output:
CODE --> APDL
For a simple static case, my_sene = (my_sendE + my_sendP)*my_volu.
CODE --> APDL
Kind regards,
Jason
RE: ANSYS - Plastic strain energy
Is there a difference between using
send, plastic / eppl, eqv
and
send, elastic / epel, eqv ?
RE: ANSYS - Plastic strain energy
Please see link for equivalent strain calculations. This is different from energy calculations (link).
From ETABLE documentation:
send, plastic = plastic strain energy density
send, elastic = elastic strain energy density
eppl, eqv = plastic equivalent strain
epel, eqv = elastic equivalent strain
Kind regards,
Jason