Question about MinMax Material

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andy0071
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Question about MinMax Material

Post by andy0071 » Wed Nov 23, 2011 3:05 am

My question is that about the "MinMax Material"
"when the strain ever falls below or above certain threshold values,the other material is assumed to have failed" is the way we all know.
but when the strain rise back into the threshold values, what will happen then?
The other material is still work or it not?
I believe it is quiet important, just like in dynamic analyze, if the material does not work that means it break and does not work anymore, but if it work it means only the stress in some range some material works~~~
Thank you for your answer.

fmk
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Re: Question about MinMax Material

Post by fmk » Wed Dec 07, 2011 10:19 am

once material fails .. it is assumed to have failed and stress and tangent reported after failure are always 0

andy0071
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Joined: Sat Feb 26, 2011 11:22 pm
Location: SYjianzhu university

Re: Question about MinMax Material

Post by andy0071 » Wed Dec 07, 2011 4:24 pm

Thank you for your answer~

wuhaoshrek
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Re: Question about MinMax Material

Post by wuhaoshrek » Mon Feb 11, 2013 10:49 am

fmk wrote:
> once material fails .. it is assumed to have failed and stress and tangent
> reported after failure are always 0

Hi, fmk,

The material you mean the specific material # user defined, right? Not all that material type.

For example. I created 2 material Mat 1 and Mat 2, both use steel01 material model and with
the same MinMax parameters. Since the strain history is different, these 2 materials would
not fail at the same time. Assume Mat 1 fails first, and that time Mat 2 should not fail, right?
Although both use steel01.

fmk
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Re: Question about MinMax Material

Post by fmk » Wed Feb 13, 2013 4:36 pm

yes, you have it correct.

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