Dear Chris and Gil,
Thank you for your comments.
I am quoting from Chris's comment:
"For very fast measurements (or low temperatures), the polymer has no time to flow..."
And from Gil's comment:
"...This happens because the material has elasticity for quick loads but shows viscosty (flows)...
Chris,
Sorry to make yourself in a confusion state which has not being my intention.
From the first place, I am not trying to focus on the polymer materials per se.
I am just curious and playing with my thinking as what if there is a material which may have a duality property characteristic...
Chris,
Thanks for the comment.
However, I am pretty sure that the time-independent Young's modulus does not depend on temperature either. So, the WLF equation does indeed not applicable in this situation.
To make myself clear, the time-independent Young's modulus is also called as simply...
Hi all,
I have this confusing thought for a quite long time.
Is there any relation between the time-independent Young's modulus with the time-dependent Young's modulus (instantaneous and equilibrium moduli or loss and storage moduli)?
If yes, what is the equation to relate them?
So many...
Hi all,
I read the ABAQUS documentation regarding the post-buckling analysis (6.2.3 and 6.2.4). I tried to perform the post-buckling analysis using the IMPERFECTION command and RIKS step.
However, the resulting shape of my sample (a bar with a rectangular cross section) did not tally with the...
Thanks for the reply.
So I guess the problem must be something else. My sample is a bar with a rectangular cross section (170 nm * 150 nm). Material's Young's modulus and Poisson ratio is 100GPa and 0.3 respectively.
If you find any mistake on my input file below, please kindly inform me...
Hi all,
I ran a pre-buckling analysis using ABAQUS. However, I found the eigenvalue (in nN range) is not as what I expected (uN range). My initial guess for this problem is due to the unit conversion. I choose nanometer as my unit length. For Young's modulus value, I wrote 0.0000001 for 100...