Acceptance Criteria
Acceptance Criteria
(OP)
What do you guys use for the bottom line in your analysis?
Do you just check Von Mises or other paramters also?
Do you just check Von Mises or other paramters also?
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RE: Acceptance Criteria
The short answer is "it depends." There are many factors in determining what failure criteria to consider. Materials/manufacturing process, failure mode, etc. Can you elaborate on what you are trying to solve?
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Matthew Ian Loew
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RE: Acceptance Criteria
RE: Acceptance Criteria
RE: Acceptance Criteria
Hope my ramble helps.
jxc
RE: Acceptance Criteria
what is integration point value? how can i get this value?
is that true that the von mises stress in a particular element will continue to increase if i increase the loading? if yes, why sometimes in my post processing result the value decreases? is that because the value shown is an extrapolation and not the real value?
RE: Acceptance Criteria
How do I get my integration point values? You should be able to obtain the actual integration point values from within your post processor. In ABAQUS, I use the "probe" function to get this. The probe is accessable from the icon of the i with the circle around it.
From other software packages, I am not sure how to get the integration point values, but, if you have the values printed to a text output file, those values should be integration point values. In fact, it will probably have the integration points numbered and a table of values below it.
Is it possible that the Von mises stress in a particular element will decrease if I continue to increase the loading? Absolutely! There are many cases where this is possible, such as a non-linear material definition. After a certain point your material may be loosing stiffness as it begins to fail. Another case would be if your part comes in contact with something, begins to buckle, or simply moves enough that your load path changes. Linear codes will not pick this up, but non-linear codes will.
Best regards and Merry Christmas!