FEAP User Forum

FEAP => Input File Issues => Topic started by: Tao Jin on October 30, 2012, 01:27:21 PM

Title: How to apply Orthotropic St. Venant-Kirchho material model in Feap
Post by: Tao Jin on October 30, 2012, 01:27:21 PM

Hi All,

According to FEAP manual, St.Venant-Kirchho model (STVK) can be used as an orthotropic constitutive law.

But I tried lots of times, feeling that it can only work as an isotropic one. Also according to the FEAP manual, the input is suggested as below:
MATErial 1
SOLId
ELAStic STVE(or STVK) E nu
Finite

My question is,  how should the input file be set up to make this model working as an orthotropic one, with different properties in different direction?

Thanks

Title: Re: How to apply Orthotropic St. Venant-Kirchho material model in Feap
Post by: FEAP_Admin on October 31, 2012, 12:04:04 AM

Does the following work?

MATErial
  SOLId
  FINIte
  ELAStic ORTHotropic E-1 E-2 E-3 nu-12 nu-23 nu-31 G-12 G-23 G-31

Title: Re: How to apply Orthotropic St. Venant-Kirchho material model in Feap
Post by: Tao Jin on October 31, 2012, 09:03:31 AM

Quote from: FEAP_Admin on October 31, 2012, 12:04:04 AM

Does the following work?

MATErial
  SOLId
  FINIte
  ELAStic ORTHotropic E-1 E-2 E-3 nu-12 nu-23 nu-31 G-12 G-23 G-31

Thank you. That works!