FEMAP model - Temperature dependent plastic material definition
FEMAP model - Temperature dependent plastic material definition
(OP)
Hi Everybody!
I would like to make a non linear analysis whith FEMAP/NX Nastran which contains the following material definition:
- Temperature dependent Young modulus
- Temperature dependent Stress-strain curve
- Temperature dependent conductivity
- Temperature dependent Poisson number
I have tried to find examples etc. on the internet, but up to now I could not find.
What I can do at this moment: Temperature dependent linear analysis. The plastic effect does not work. Could somebody create/send a very simple FEMAP model just for demonstration how I should define such a task? (Or show me a site where I can find/download an example?)
Thank you!
BR,
Irwin
I would like to make a non linear analysis whith FEMAP/NX Nastran which contains the following material definition:
- Temperature dependent Young modulus
- Temperature dependent Stress-strain curve
- Temperature dependent conductivity
- Temperature dependent Poisson number
I have tried to find examples etc. on the internet, but up to now I could not find.
What I can do at this moment: Temperature dependent linear analysis. The plastic effect does not work. Could somebody create/send a very simple FEMAP model just for demonstration how I should define such a task? (Or show me a site where I can find/download an example?)
Thank you!
BR,
Irwin





RE: FEMAP model - Temperature dependent plastic material definition
Please give us more information of the error you have. I suggest to define a "pilot study" with a simply model and post here.
Best regards,
Blas.
~~~~~~~~~~~~~~~~~~~~~~
Blas Molero Hidalgo
Ingeniero Industrial
Director
IBERISA
48004 BILBAO (SPAIN)
WEB: http://www.iberisa.com
Blog de FEMAP & NX Nastran: http://iberisa.wordpress.com/
RE: FEMAP model - Temperature dependent plastic material definition
I have no error. I have no idea how I could define any temperature dependent non linear material in FEMaP for transient simulation.
I would like to analysis a structure where I have stres-strain curves on different temperature level and temperature and force load which gives us plastic deformation.
What I have:
Non linear temperature dependent properties for the material, like: Young modulus, expansion coeff., conductivity, stress strain curve on different level.
I have temperature load + force loads. (These are over the linear range.)
I need some info where I have to define and what? I have found just simple non linear steady state analysis and nothing else for more complex situations.
BR,
Irwin
RE: FEMAP model - Temperature dependent plastic material definition
After several trying some errors what I can not change:
User Warning Message 4675. User fatal message 4676. (I think these are coming from the same issue.)
I hade one simulation where I had got results. From this analysis I have made just one modification, a constant temperature field was defined with 20 deg and this was increased to 200. Nothing else was modified. I have tried to decrease the time increment, but I have no chance to get any result.
RE: FEMAP model - Temperature dependent plastic material definition
Just for clarification:
Basically my target is that:
with temperature dependent material definition.
What and where should I write in FEMAP to get such results in sol106?
The best would be a FEMAP example file.
BR,
Irwin