PlaneStress material class

$$\begin{array}{r}\left\{\begin{array}{c}{S}_{XX}\\ S_{YY}\\ S_{XY}\end{array}\right\}=\frac{Et}{1-{\nu }^2}\left[\begin{array}{ccc}1& \nu & 0\\ \nu & 1& 0\\ 0& 0& \frac{1-\nu }{2}\end{array}\right](\left\{\begin{array}{c}{E}_{XX}\\ E_{YY}\\ 2E_{XY}\end{array}\right\}-\left\{\begin{array}{c}{E}_{XX}^p\\ E_{YY}^p\\ 2E_{XY}^p\end{array}\right\})\end{array}$$

where

$E_{IJ}$	Component IJ of total strain
$E_{IJ}^p$	Component IJ of plastic strain

Parent class

• Material class

Class doc

class femedu.materials.PlaneStress.PlaneStress(params={'E': 1.0, 'fy': 1e+30, 'nu': 0.0, 't': 1.0})

class: representing a 2d Plane Stress Material

updateState()

update state for a user provided axial strain value

Parameters:

eps – strain or strain tensor

Returns:

n/a