Hoop and/or radial stress

[Manuel Umanzor]

Hello group,

Is is possible to determine hoop and/or radial stresses from an LS-Dyna solution? I have a thermal-structural model (please see attachment); the outer part starts at temperature and it is allowed to cool down to room temperature such that it "compresses" the internal part.

Thank you in advance,

Manuel

[James M. Kennedy]

Dear Manuel,

 

A short discussion given a few years back.

 

Sincerely,

James M. Kennedy

KBS2 Inc.

September  25, 2020

 

----------------------------------------------------------------------------

 

Hi Anders

 

I got it. Thank you very much . This is very helpful. To confirm this again, I don't have to set this cyl coordinate up for the k file before i submit the job ?

 

Cheers

Picard

On Thursday, August 30, 2012 5:35:29 PM UTC+8, Anders wrote:

Picard,

When the cylindrical system is active. x-, y- and z-stresses corresponds to r-, phi- and z-stresses in fcomp. So plot x-stress, it should be the radial stress.

regards,
Anders

On Thu, Aug 30, 2012 at 11:24 AM, Picard <p3n...@gmail.com> wrote:

Hi Anders

 

Thank you for the tips. I have performed what you mentioned. I like to know, what should i do next to find the radial stress ? Is it under Post-History, Post-Fcomp or other way to plot it.

 

Preferably i would like see the result under Fcomp, but i wonder does LS Prepost has this capability.

 

Cheers

Picard

On Thursday, August 30, 2012 4:27:43 PM UTC+8, Anders wrote:

Picard,

You can plot stresses in a cylindrical coordinate system, if that is what you are asking.
Define the cylindrical system under Post-Setting-Local Coord System-Cyl-Create.

regards,
Anders

On Thu, Aug 30, 2012 at 10:04 AM, Picard <p3n...@gmail.com> wrote:

Hi Everyone

 

I have model a cylinder that is subject to an axial force. The model is mesh using hexahedral elements. I like to ask is there any way to extract radial and hoop stress of the elements ?

 

Best Regards

Picard

--
You received this message because you are subscribed to the Google Groups "LS-DYNA2" group.
To unsubscribe from this group and stop receiving emails from it, send an email to ls-dyna2+u...@googlegroups.com.
To view this discussion on the web visit https://groups.google.com/d/msgid/ls-dyna2/d9d9a56e-fd64-48c7-9bef-d2003ae6f5d1n%40googlegroups.com.