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Filtra

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residual stress from laser heating

Posted 22 mar 2013, 16:22 GMT-4 Heat Transfer & Phase Change, Structural Mechanics Version 4.2 2 Replies

Farhad
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Hello

I am trying to determine residual stress on a metallic ribbon (28 micron) because of laser heating. The heat source is a continuous wave laser having gaussian profile. I have already got spatial and temporal temperature distribution from "heat transfer in solid" model in comsol 4.2. But I do not know how to get residual stress. Can anyone help me on this topic? thank you

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Farhad
2 Replies Last Post 29 mar 2013, 12:29 GMT-4
Kris Allen
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Posted: 1 decade ago 23 mar 2013, 02:54 GMT-4
Check this url here you can find.
ncbi.nlm.nih.gov/pubmed/23471140
I am not sure but hope you can find the solution of this problem from here.
Check this url here you can find. ncbi.nlm.nih.gov/pubmed/23471140 I am not sure but hope you can find the solution of this problem from here.
Farhad
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Posted: 1 decade ago 29 mar 2013, 12:29 GMT-4
Hy

Thanks for the url. I have read the paper. It apprears that they used X-ray Diffraction to find out residual stress. But my material is non-crystalline (amorphous), so I cannot do the same. I have the plastic deformation data. Is there any model/theory which relates plastic deformation with residual stress? Thank you

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Farhad
Hy Thanks for the url. I have read the paper. It apprears that they used X-ray Diffraction to find out residual stress. But my material is non-crystalline (amorphous), so I cannot do the same. I have the plastic deformation data. Is there any model/theory which relates plastic deformation with residual stress? Thank you -- Farhad

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