For thermorehelogically simple materials in viscoelasticity, we know that the use of shift functions to calculate relaxation times (tau) at different temperatures
thanks for answering and clearing me about negative parameters.
i guess i've found the problem. the stress curve i obtain from my abaqus model is always decelerating regardless of the material model...
negative parameters may indicat that the strain energy density function is not stable for certain loading condition, although they may be fine for your experimental conditions.
although I though my...
Thanks for your experiment data, i searched it for quite long time on internet,
Ii am using Ansys to simulate some rubber key behavior, do you have the material spec of NR with 55 pph...
Dear Jorgen,
I posted my question on Forums page again on date 2010-06-28 03:46 as suggested by you, but still did not recieved any answer from your side. I am waiting for your suggetions.
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Shift Functions and Reduced Time
Hi, .
shriisall 2010-09-07 14:31For thermorehelogically simple materials in viscoelasticity, we know that the use of shift functions to calculate relaxation times (tau) at different temperatures
tau(T) = tau(Tref)A(T) ...