Structural Analysis ToolKit.

The Structural Analysis Toolkit for Nastran (SATK™) performs base-driven random simulation using Nastran eigenvectors

SATK™ is an advanced structural analysis toolkit that leverages Nastran eigenvectors to execute base driven random simulation. The accuracy and speed of SATK are unparalleled, making it a game changer for engineering teams tasked with computing margins of safety, strength ratio and failure index for composite products.

Its speed and accuracy are unmatched

SATK also performs harmonic base excitation, extracting phase-consistent Von Mises stresses. SATK has a powerful Nastran .op2 results file reader: it processes selected data from the op2 file, and presents the results in Microsoft® Excel, HTML, FEMAP Neutral, Universal and ASCII formats. It is particularly useful in organizing numerous, large results data blocks into meaningful summaries, thereby saving valuable post-analysis results review time.

SATK is a game changer because:

  • It uses state-of-the art integration algorithms: Integration occurs over only a subset of the requested results. And you don’t have to worry about specifying too few or too many integration frequencies.
  • It computes composite ply stresses, strains and failure metrics (failure index, strength ratio and margin of safety).
  • It doesn’t just compute RMS Von Mises stresses and ply metrics: Its fast approximation algorithm computes true, peak results that correspond to the probability you specify!
  • It automatically computes stress margins of safety.
  • It accounts for modal truncation effects.
  • It’s parallelized.
  • It uses the Nastran eigenvectors, which means the results are accurate.

Structural Analysis Toolkit turned a 2 day analysis (200,000 elements model with 100 modes with 3 random vibe cases) using a competing product, into a 6 minute job. Well worth the investment!

William Villers

Director of Engineering, TEN TECH LLC



Uses fast approximation algorithm to extract RMS Von Mises nodal stresses and computes true peak results (corresponding to specified probabilities) at unbeatable speeds.

Automated Computation

Automatically computes stress margins of safety while accounting for the effects of modal truncation.

Powerful Results File Reader

Integrates seamlessly with FEMAP and comes with a powerful Nastran .op2 result file reader that enables the presentation of results in various formats, including Universal file, ASCII text, Neutral file, and Microsoft Excel formats.

Design Reuse

Maximizes the value of your product knowledge by providing you with the means to leverage it continuously in multiple scenarios.

Efficient Processing

Processes results from very large models and numerous load cases and reduces average review time of post-analysis results by organizing large data blocks of results into meaningful summaries.


Evaluation of safety margins

Assesses safety margins for complex structures that are subject to various loading and stress levels and manufactured using different materials through the use of material allowables, user-defined element groups, safety factor and failure theories.


Diverse Functionality

Supports both MSC Nastran and NX™ and is capable of reading large NASTRAN binary result files generated on Unix, Linux and Windows platforms. SATK also identifies and sorts element forces, grid point forces, maximum element stresses and other NASTRAN results.

See how Structural Analysis ToolKit (SATK) can help you

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