I just learned that ANSYS 12 now has [URL= http://www.ansys.com/products/structural-mechanics/features.asp#library ]built-in[/URL] support for the Bergstrom-Boyce model. This happens to be a model that I developed a few years ago when I was at MIT and worked with Professor Mary Boyce.
I would be curious to hear peoples comments on how the ANSYS implementation of this model is working. Have anyone tried it out yet?
I would be interested in hearing feedback on your experience!