Menu

Discussion Forum

New Discussion
查找

Note: This discussion is about an older version of the COMSOL Multiphysics® software. The information provided may be out of date.

Discussion Closed This discussion was created more than 6 months ago and has been closed. To start a new discussion with a link back to this one, click here.

how to define initial stress in a thin film

Posted 2011年11月7日 GMT-5 16:10 Structural Mechanics Version 4.2 2 Replies

Rong Sun
Send Private Message Flag post as spam

Please login with a confirmed email address before reporting spam

Hi,

I would like to simulate a pre-stressed thin film on a substrate to see the bowing of the substrate. The substrate is considered stress free. The thin film has compressive stress. I would like to get some help on how to define such initial stress in COMSOL.

My COMSOL is 4.2.

Thanks a bunch in advance,

Rong
2 Replies Last Post 2011年11月8日 GMT-5 08:42
Ivar KJELBERG COMSOL Multiphysics(r) fan, retired, former "Senior Expert" at CSEM SA (CH)
Send Private Message Flag post as spam

Please login with a confirmed email address before reporting spam

Posted: 1 decade ago 2011年11月8日 GMT-5 01:53
Hi

the way I use is via thermal differential contraction, there is a nice example in the model library. I do not really know how to correctly define the stress tensor without letting COMSOL solve a realistic manufacturing case

But someone out there might have a good/better idea ;)

--
Good luck
Ivar
Hi the way I use is via thermal differential contraction, there is a nice example in the model library. I do not really know how to correctly define the stress tensor without letting COMSOL solve a realistic manufacturing case But someone out there might have a good/better idea ;) -- Good luck Ivar
Rong Sun
Send Private Message Flag post as spam

Please login with a confirmed email address before reporting spam

Posted: 1 decade ago 2011年11月8日 GMT-5 08:42
Thank you Ivar! I will try as you suggested.

Thanks again,

Rong
Thank you Ivar! I will try as you suggested. Thanks again, Rong

Note that while COMSOL employees may participate in the discussion forum, COMSOL® software users who are on-subscription should submit their questions via the Support Center for a more comprehensive response from the Technical Support team.

Suggested Content