Hi Dave,
I have meshed the same needle with finer mesh then what are u looking at long and skewed. I had meshed with 3 element in a row, 4 elements in the same row and now u can see 2 elements in the same needle tip row. The mesh at needle tip play only a part of role in distortion, where as...
Hello Thomas,
No abaqus don't have unit system. Its user responsibility to ensure consistency.
I have the model in mm, modulus and yield in MPa and density in kg/mm3. I initially tried with tonne/mm3 but that resulted in element failure in the tip of needle. So I changed the density with...
Hello IRstuff,
I agree hypothetically there is no difference between density at all --> 7.8e-6 kg/mm^3 = 7.8e-9 tonne/mm^3.
Question is Can I use the kg/mm3 instead of tonne/mm3 to define the density when I have model in millimetres (mm). Would that make any difference in output as the metric...
Hi Dave,
My models runs without any failure in element distortion if I use the density in kg/mm3 rather then tonne/mm3. I guess this add to mass scaling to the model. I am aware that I cannot use kg/mm3 as a density unit if I need to have consistency with my length being in mm, force in N and...
Hi Ice
I am trying to stimulate the puncture of rubber through needle. I can't use static standard model as I am looking to analyse the needle puncture through the rubber by ALE eularian analysis. As I am trying to create deformation in rubber with material motion rather then element deletion...
Thanks Guys,
If I use the consistent scaling in si or metric, the models runs as failure due to element distortion. I guess the answer lies in mass scaling. I will look into that, and get back to you guys.
Hi all,
I am using Abaqus/Cae to create needle-rubber interaction analysis. Every time when I used the material property density in tonne/mm3, the simulation fails because of material failure and come out as error. When I change the density to kg/mm3 the models runs through with convergence and...
