Nonlinear & Extended Solution Capabilities

ANSYS ASAS software offers a standard set of features that allows simulation beyond simple linear elastic analysis, such as: 

  • Large displacement 
  • Nonlinear elastic material behavior 
  • Plasticity 
  • Laminated composite failure behavior 
  • Soil and rock-like material behavior 
  • Nonlinear boundary conditions, such as gaps and rigid surface contact 
  • Creep 
  • Nonlinear transient dynamics 
  • Stability (buckling loads) 
  • Steady-state heat 
  • General field analysis 

There is a special application for investigating pile behavior using nonlinear soil properties and interaction with attached structural members (so called pile–structure interaction). This employs an efficient solution based upon P-Y and T-Z soil curves, either explicitly defined or by providing basic soil parameters such as unit weight or shear strength. Pile group effects are automatically included to account for the interaction between the piles through the soil. Pile code checks to API can be requested. 

While conventional analysis of framed structures assumes rigid joint connections between adjoining members, there is much evidence that the effects of including the inherent flexibility at the joints provides for a more rigorous solution. This allows simple beam models to account for chord wall flexibility and the effects of adjacent members, potentially obviating the need for detailed shell models in critical areas. This application is based on simple parametric formulations that describe the load-deformation characteristics for various joint types.