> Dear engineering-all,

Dear Tim,

Are they the same material model? If they are the same model, it 
should be okay. If you are using a different material model, you have 
to follow the advice of the manual and use the character string to 
identify which one you are using. Thank you for your attention.

regards,

Andrew

> I currently am  running a calculation with an 
> implemented UMAT.
> I am using the same UMAT for two different 
> element groups, but 
> different properities:
> 
> *SOLID SECTION, ELSET=FSS, MATERIAL=matfss
> *MATERIAL, NAME=matfss
> *DENSITY
> 1.61
> *DEPVAR
> 14
> *USER MATERIAL, CONSTANTS=18
> 18 constants
> **
> **
> **
> *SOLID SECTION, ELSET=UNTERGRU, MATERIAL=matug
> *MATERIAL, NAME=matug
> *DENSITY
> 1.61
> *DEPVAR
> 14
> *USER MATERIAL, CONSTANTS=18
> 18 different constants
> 
> now at a certain point, there always is an 
> calculation error.
> I think it's a memory allocation error!
> Do you know if it isn't possible to use the same 
> UMAT for two 
> different e.g. material layers with different 
> properties ?
> Or do I have to increase eg. the depvar option, 
> change a name, or 
> use another name for the materials etc.?
> 
> I would be very thankful for your help !!!
> 
> Best regards
> Tim Stöcker
> 
> ___________________________________________________
> 
> Dipl.-Ing. Tim Stoecker
> e-mail: [log in to unmask]
> 
> University of Kassel
> Institute of Geotechnique
> Moenchebergstr. 7
> D-34117 Kassel
> Germany
> 
> tel: +49 561 8042197
> fax: +49 561 8042651
> ___________________________________________________
> 
> privat:
> Moritzstrasse 26
> 34127 Kassel
> Germany
> 
> tel:   +49 561 8702808
> fax:   +49 89  244363894
> mobil: +49 179 2077357
> 
--
Practice is the only standard by which truth should be judged.
- Chairman Mao

Dr. Andrew H.C. Chan: [log in to unmask] or [log in to unmask]
Reader, School of Civil Engrg, Univ of Birmingham B15 2TT UK
Tel: +44(0)121 414 5100 Fax: +44(0)121 414 3675 Room 118B
http://www.bham.ac.uk/CivEng/pg/soils/chan/chan01.htm


%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%