The thermoplastic library includes the following material models. Each of these models provides unique and powerful predictions for different classes of thermoplastics. Each material model is available for both implicit and explicit finite element simulations, and is suitable for large deformation analyses.
|Material Model Name||Description|
|Linear elastic model that also incorporates the PolyUMod failure models.|
|Neo-Hookean hyperelastic model that supports the PolyUMod failure models.|
|Arruda-Boyce eight-chain hyperelastic model that supports the PolyUMod failure models [J. Mech. Phys. Solids, 41, 389-412, 1993]. Uses a more accurate implementation of the inverse Langevin function than most other commercial implementations.|
|Anisotropic version of the eight-chain model [Bischoff et al, Trans. ASME, 69, 570-579, 2002].
|Arruda-Boyce viscoplastic model for thermoplastic materials [Mech. Mater., 19, 193-212, 1995].
|Specifically developed for fluoropolymers, (e.g. Teflon), but is suitable for many thermoplastics [Mech. Materials, 37, 899-913, 2005].
|Specifically developed for ultra-high molecular weight polyethylene (UHMWPE), but is suitable for many thermoplastics [Biomaterials, 24, 1365-1380, 2003].|
|The TNM is an alternative to the Hybrid model that gives similar quality predictions but also includes temperature effects and is more numerically efficient [SES, 45th Annual Meeting, 2008].
|Advanced model that contains an arbitrary number of elastic and flow elements connected in parallel.