Material Model Name

Description

Linear Elastic (LE)

Linear elastic model that also incorporates the PolyUMod failure models.

Neo-Hookean (NH)

Neo-Hookean hyperelastic model that supports the PolyUMod failure models.

Eight-Chain (EC)

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 Eight-Chain (AEC)

Anisotropic version of the eight-chain model [Bischoff et al, Trans. ASME, 69, 570-579, 2002].

Supports different failure models

Arruda-Boyce (AB)

Arruda-Boyce viscoplastic model for thermoplastic materials [Mech. Mater., 19, 193-212, 1995].

Supports different failure models.

Dual Network Fluoropolymer (DNF)

Specifically developed for Fluoropolymers, (e.g. Teflon), but is suitable for many thermoplastics [Mech. Materials, 37, 899-913, 2005].

• Strain-rate effects
• Temperature effects
• Both viscoelastic and viscoplastic behavior
• Supports different failure models

Hybrid Model (HM)

Specifically developed for UHMWPE, but is suitable for many thermoplastics. [Biomaterials, 24, 1365-1380, 2003]

Three-Network (TNM)

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]

• Large deformation behavior
• Strain-rate effects
• Temperature effects
• Supports different failure models

Parallel Network (PNM)

Advanced model that contains an arbitrary number of elastic and flow elements connected in parallel.

• Suitable for large deformation, thermomechanical predictions of many different classes of polymers.
• Supports different failure models.