In the real world, most engineering problems contain some kind of nonlinear effect. In the past it was impractical to solve these with nonlinear algorithms because of the limitations of existing analysis software programs. Analysts were forced to use simplified linear approximations as a faster and more efficient alternative, however, the resulting solutions were not always valid.

Today, COSMOSNonlinear™ is breaking these barriers by offering nonlinear design analysis in an easy to use, Windows® native format. For the first time ever, designers using most popular 3D CAD packages now have an integrated tool to simulate results that behave more like the actual responses observed in the lab or the field.

COSMOSNonlinear is fully embedded in COSMOSDesignSTAR™, sharing the same intelligent, intuitive interface that you already know, so there is no steep learning curve. For non-specialists, COSMOSNonlinear makes creating and assigning the appropriate properties and setting up the proper nonlinear solution strategy easier than ever.

With COSMOSNonlinear, process time is no longer an issue. Powered by the fastest solvers in the industry, COSMOSNonlinear can quickly solve complex nonlinear problems due to nonlinear material properties, large deformations, and changes in boundary conditions - in about the same time it takes expensive high-end nonlinear analysis programs to reach a solution. Problems that once took days or weeks to converge can now be solved in a matter of minutes.

Features include:

• Hyperelasticity, Plasticity, Visco-elasticity, Elasticity & Temperature-dependent material properties
• Large displacements/deflections
• Large strain formulation for rubber-like materials
• Large strain formulation for von Mises elasto-plastic materials
• Force-controlled loading strategy
• Deformation-controlled loading strategy
• Equilibrium iteration schemes
• Termination schemes
• Efficient analysis procedures
• Full compatibility with linear analysis
• Easy transition from linear to nonlinear analysis
• Parts, assemblies and sheet metal