Parameter | Definition |
| Elastic strain in spring |
| Viscoelastic strain in dashpot |
| Plastic strain |
| Permanent creep strain |
| Remodeling strain |
| Elastic stiffness |
| Viscosity in the elastic component |
| Hardening |
np | Plastic stress exponent |
| Yield stress |
| Viscosity in the plastic component |
| Arbitrary reference stress |
| Plastic multiplier |
| Remodeling |