When using nonlinear material, it is possible to adjust the number of integration points. For example, it may be necessary to increase the number for the calculation of steel fiber concrete. You can adjust the Thickness properties in the "Layers" tab.
There are 3 to 99 integration points possible over the height. You can set the number separately for each layer.
Furthermore, various integration methods are available for nonlinear materials in the "Main" tab. For this, select the Specify integration method check box.
- Gauss-Lobatto quadrature
- Simpson's rule
- Trapezoidal rule
The three methods are described in the chapter Integration Methods.