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What's New in NASGRO

Capability Growth 

Recent Enhancements

Recent enhancements in the current version 11.0 include:

  • New Bivariant Weight Function (WF) K solution for a Curved Through Crack at edge of Plate
  • New K solution for a Through Crack Growing Towards a Hole
  • New K solution for a Corner Crack in a T-Section Flange
  • Expansion of K solution for Two Curved Through Cracks at a Single Hole in a Row of Holes
  • Expansion of K solution for a Corner Crack on the Long Ligament side of the Hole
  • Expansion of K solution for a Surface Crack at an Elliptical Notch in a Round Bar
  • Elastic-Plastic Fracture Mechanics (EPFM) Module Improvements
  • Capability to Use API 579 Fracture Toughness Values
  • Option to select API 579 transition (recharacterization) criteria
  • Option to select API 579 weld residual stress (WRS) polynomial equations

A PDF flyer describing the current version can be downloaded here.

Previous Versions

Summaries of new features and enhancements in previous versions are available in the release notes for each version.

Future Development

Major new features planned for version 11.1 include:

  • New K solution for a Through Crack in the Web of a T-Section
  • New K solution for a Surface Crack at the Fillet of an L-Section
  • New K solution for a Corner Crack at an L-Section
  • New K solution for an Edge Crack Growing Towards a Hole
  • Elastic-Plastic Fracture Mechanics (EPFM) Module Improvements
  • Capability to Use API 579 & ASME Paris Equations
  • Access to material database from the critical crack size module

Plans for future versions include:

  • Superposition methods for time-dependent crack growth
  • Advanced methods for thermomechanical fatigue crack growth
  • Approximate (compounding) method for multi-site damage
  • Ability to call NASGRO directly from another user program
  • More improvements to EPFM module and documentation
  • Additional K solutions for other unique geometries


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