Resposta:
Mesmo que o programa não calcule um material não linear, pode calcular uma equação algépica não linear de acordo com a análise de segunda ordem ou de grandes deformações. Therefore, the design is not only nonlinear because of the geometrical material nonlinearities, but also because of the nonlinear physical analysis method.
The attached video shows that if the nonlinear behavior of the tension beam is not considered during the calculation, a linear analysis is displayed in load cases and a nonlinear analysis is displayed in load combinations. The reason for this is the nonlinear design according to second-order analysis in the load combination.
