4.4.1 Deviatoric Strain Energy

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4.4.1 Deviatoric Strain Energy

There are two models available to describe the deviatoric strain energy function: Mooney-Rivlin and Besseling [§16.3.1].

Mooney-Rivlin (syntax)

$\begin{figure}\centering \begin{tabbing} \texttt{'MATERI'} \\ [-1.0ex] \rule{14... ...\textit{k1}}$_{r}\,$ \texttt{\textit{k2}}$_{r}\,$ \end{tabbing} \end{figure}$

RUBBER: MOONEY specifies the Mooney-Rivlin model [§16.3.1.1].
RUBVAL: k1 and k2 are the material constants K₁ and K₂ (16.38).

Besseling (syntax)

$\begin{figure}\centering \begin{tabbing} \texttt{'MATERI'} \\ [-1.0ex] \rule{14... ...xtit{k2}}$_{r}\,$ \texttt{\textit{alpha}}$_{r}\,$ \end{tabbing} \end{figure}$

RUBBER: BESSEL specifies the Besseling model [§16.3.1.2].
RUBVAL: k1 and k2 are the material constants K₁ and K₂ (16.39), alpha is the exponent $\alpha$ .

DIANA-9.3 User's Manual - Material Library
First ed.

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