Strain under the lo...
 
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Strain under the local CS

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Posts: 3
 Lon
Topic starter
(@lon)
Barista
Joined: 5 years ago

Hey guys,

I am geting stuck these days for how to get a strain history plot of solid elements under the local coordinate system. Right now, I have already defined a local CS, and I did get a strain history plot for "local" CS, but I found the result was not as it should be, since this "local" strain is nothing but the strain under the global coordinate system with axes rotation, for instance the "local" x-strain is exactly the y-strain under the global CS.

So I wonder do you have any idea how to fix my problem?

Any suggestion or help would be greatly appricated!

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Negative Volume
Posts: 668
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(@negativevolume)
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Joined: 6 years ago

@lon

I’m pretty sure you need an anisotropic material and then there is a flag to activate in the material card that should allow you to look at local strain.

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 Lon
(@lon)
Joined: 5 years ago

Barista
Posts: 3

@negativevolume

Thanks for your reply! I'm still not very clear about the manipulation you mentioned, but fortunately I've figured out the problem just before.

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Negative Volume
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(@negativevolume)
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@lon

Oh perfect! How were able to figure it out? I believe that this is something that many people have been curious about.

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 Lon
(@lon)
Joined: 5 years ago

Barista
Posts: 3

@negativevolume

I'm sorry for my late reply.

I'm not sure if my problem is the same as what you told about, as what I did is just inputting a local coordinate system from the "general setting" module, which I did not find earlier before. Also I believe the material I used is isotropic, and the reason why I used local strain is to compare with the results on strain gauges. 

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