Muscle tissue FEBIO plugin implementation (Version 1.1)
This plugin uses as basis the material type transversely isotropic Mooney Rivlin. And additionally, the force-length-curve by Gordon et al. (1966) for the active contraction. With this, you can simply change the muscle properties for different muscle types.
You are welcome to ask questions (heiko at starkrats dot de)!
Muscle tissue FEBIO source code implementation (Version 1.0)