Altaxo. |
Contains curve-fitting models for rubber elasticity.
Classes| Class | Description | |
|---|---|---|
 | ArrudaBoyceEightChainBase | Implements the Arruda-Boyce eight-chain model for incompressible hyperelastic rubber-like materials. Strain energy density (statistical form): W = mu * lambdaM^2 * ( (lambdaChain/lambdaM) * InverseLangevin(lambdaChain/lambdaM) + ln( (InverseLangevin(lambdaChain/lambdaM)) / sinh(InverseLangevin(lambdaChain/lambdaM)) ) ) with the chain stretch lambdaChain = sqrt(I1 / 3). Differentiating W with respect to the principal stretch for each deformation mode gives the nominal (engineering) stress: P = (mu / 3) * (lambdaM / lambdaChain) * InverseLangevin(lambdaChain / lambdaM) * dI1/dLambda where dI1/dLambda depends on the loading mode (incompressibility assumed, J = 1). Parameters: mu - initial shear modulus (small-strain), e.g. in MPa lambdaM - locking stretch (chain limiting stretch), typically 1.5 - 8, must be > 1 lambda - applied principal stretch (lambda = 1 + engineering strain) |
| ArrudaBoyceEightChainBiaxial | Arruda-Boyce Eight-Chain model for biaxial loading. |
| ArrudaBoyceEightChainPlanar | Arruda-Boyce Eight-Chain model for planar loading. |
| ArrudaBoyceEightChainUniaxial | Arruda-Boyce Eight-Chain model for uniaxial loading. |
| GentBiaxial | Gent model for biaxial loading. |
| GentPlanar | Gent model for planar loading. |
| GentUniaxial | Gent model for uniaxial loading. |
| MooneyRivlinBiaxial | Mooney-Rivlin model for biaxial loading. |
| MooneyRivlinPlanar | Mooney-Rivlin model for planar loading. |
| MooneyRivlinUniaxial | Mooney-Rivlin model for uniaxial loading. |
| NeoHookeanBiaxial | Neo-Hook model for uniaxial loading. |
| NeoHookeanPlanar | Neo-Hook model for uniaxial loading. |
| NeoHookeanUniaxial | Neo-Hook model for uniaxial loading. |
| OdgenBiaxial | Odgen model for biaxial loading. |
| OdgenPlanar | Odgen model for planar loading. |
| OdgenUniaxial | Odgen model for uniaxial loading. |
| YeohBiaxial | Yeoh model for biaxial loading. |
| YeohPlanar | Yeoh model for planar loading. |
| YeohUniaxial | Yeoh model for uniaxial loading. |