Advanced Nonlinear

Predict behavior of parts or assemblies with nonlinear contact,
material, or large deformations

What is Advanced Nonlinear?

The NX™ Nastran® Advanced Nonlinear software solution enables you to analyze models with non-linearity from contacting parts, material nonlinearities and/or geometric nonlinearities (that is, large deformations).

An add-on module of NX Nastran – Basic, the Advanced Nonlinear solver is an integration of the well-known and highly regarded ADINA solver into NX Nastran as Solution 601 for implicit solutions or Solution 701 for explicit solutions.

The integration of the ADINA solver into Solution 601/701 is transparent to the user because the input and output formats are based on NX Nastran formats. Thus, to the user, the experience and usage of Solution 601/701 is completely Nastran-centric.

advanced nonlinear bullet sheet demonstration

When would I need to use Advanced Nonlinear?

When Do Problems Become Nonlinear?
Geometric Nonlinear

Geometric nonlinear effects need to be simulated when stiffness properties or loads change significantly as the result of deformation. For example, geometric non-linearity effects are important for snap-through buckling.

Material Nonlinear

Material nonlinear effects should be modeled when the material properties cannot be considered linear for the loading conditions considered. Example usages are for analyzing hyperelastic (rubber) materials or analyzing metals that exhibit plastic behavior because they are stressed beyond yield limits.

Advanced Contact Capabilities

Advanced contact capabilities allow you to simulate surface contact using either shell or solid elements. Many mechanical simulations involve parts coming into contact under load.

With the advanced Solution 601/701 surface contact capabilities, the solver determines the extent of surface contact and load transfer across the contacting surfaces as part of the solution.

NX Nastran Advanced Nonlinear also has a very robust solution algorithm and efficiently obtains converged solutions for some of the most difficult and intractable nonlinear models.

Want to learn more? Watch our Advanced Nonlinear Webinar Recordings

Introduction to Advanced Nonlinear
Post-Buckling Behavior using Advanced Nonlinear

Advanced Nonlinear Capabilities

Click on the button below to see the PDF that details all the advanced nonlinear capabilities, including:

  • Contact
  • Material Nonlinear
  • Geometric Nonlinear
  • Robust Solution Methods (Full Newton iterations, Load displacement, Automatic time stepping, and more)
  • Easy Transfer from linear to nonlinear analysis
  • Implicit and Explicit Solutions
  • Other Modeling Capabilities (CBUSH element support, glue connection, and more)

View the PDF