4.14.5.35.1.3. ManderBackboneΒΆ
- hystereticBackbone('Mander', backboneTag, fc, epsc, E)
The backbone function \(F(x)\) is developed by Mander, Priestly, and Park (1988) and defined as
\[ \begin{align}\begin{aligned}F(x) = -f_c\frac{sr}{r-1+s^r}\\s = x / \epsilon_c\\r = \frac{E}{E-f_c/\epsilon_c}\end{aligned}\end{align} \]backboneTag
(int)integer tag identifying the backbone function.
fc
(float)parameter \(f_c\).
epsc
(float)parameter \(\epsilon_c\).
E
(float)parameter \(E\).