Dear Reza Alavi ,

Not sure whether this is what you are looking for, but in the following paper the use a nice and pretty accurate model of Type I collagen (scaffold):

Article Studies on Cross-linking of Succinic Acid with Chitosan/Collagen

and the model they got from the following source (reference 22 in the paper):

University of California. Creating Collagen Models. Gencollagen. Available from: http://www.cgl.ucsf.edu./cgibin/gencollagen.py

Have a look at: Israelowitz, M., Rizvi, S. W., Kramer, J., & von Schroeder, H. P. (2005). Computational modeling of type I collagen fibers to determine the extracellular matrix structure of connective tissues. Protein Engineering, Design & Selection, 18(7), 329-335.

Article Computational modeling of type I collagen fibers to determin...

Good luck and best regards.

Dear Rob,

Thank you very much for introducing those references. I will take a look at them all to see if they can help me with my project.

Best Regards,

Reza

Dear Reza,

If you want to modelise collagen within skin for exemple, you should use non linear static analysis.

Anisotropic hyperelastic model can describ collagen with matrix ( skin or muscles).

Weiss JA, Maker BN, Govindjee S. 1996. Finite element implementation of incompressible, transversely isotropic hyperelasticity.

Xu F, Lu T. 2011. Skin structure and skin blood

ow. Berlin, Heidelberg: Springer Berlin

Heidelberg. p. 7{19.

Howevers, if you want to describ collagen alone, you can use hyperelastic model with link elements.

You can contact if it is not clear. Best regards.