damping tangent?

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verybigpotato
Posts: 11
Joined: Wed Mar 30, 2005 2:08 pm

damping tangent?

Post by verybigpotato » Sun May 01, 2005 6:57 pm

What is the meaning of damping tangent for elastic material?
Wow, a very very big potato :)!
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silvia
Posts: 3909
Joined: Tue Jan 11, 2005 7:44 am
Location: Degenkolb Engineers
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Post by silvia » Mon May 02, 2005 9:19 am

good question!
Silvia Mazzoni, PhD
Structural Consultant
Degenkolb Engineers
235 Montgomery Street, Suite 500
San Francisco, CA. 94104
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aemmons
Posts: 9
Joined: Wed Jan 26, 2005 3:30 pm
Location: Colorado School of Mines

Post by aemmons » Wed May 25, 2005 10:30 am

I have asked this same question before, and got no response.
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berktaftali
Posts: 68
Joined: Fri Jul 02, 2004 6:10 am
Location: Computers and Structures, Inc.

Post by berktaftali » Wed May 25, 2005 1:08 pm

Looking at the source code for Elastic unixaial material,

Code: Select all

...
stress = E*trialStrain + eta*trialStrainRate;
...
I guess it is the damping constant of a dashpot acting simulatenously with the elastic material ...
Berk Taftali
Georgia Institute of Technology
Ph.D. Candidate, Structural Engineering, Mechanics, and Materials
School of Civil and Environmental Engineering
Atlanta, GA 30332 USA
Email: gte994y@mail.gatech.edu
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