Non-linearity of material : This occurs when the stress-strain relationship is non-linear. Most ground materials have this non-linearity. Geometric non-linearity: If the displacement-strain relationship is non-linear, the linear assumption is no longer applicable when the displacement is large, or the rotational deformation is large. Non-linearity of load and boundary: Non-linearity that includes the non-linear behavior at an interface, or non-linearity caused by the direction change of a load due to strain, caused by forces such as the follower force. GTS NX can consider all non-linearity mentioned above in analysis. Non-linear analysis can take a long time for complex non-linear systems because repeated calculations are conducted. Hence for the practicality, considering appropriate non-linearity can result in analysis results that simulate non-linear behavior, while maintaining the accuracy with little computational cost.
GeoEngineerings School August 16, 2016 ComingSoon, Geotechnical Engineering, Midas, Softwares, Soil Mechanics.