Battelle’s world-class expertise in fatigue and fracture delivers solutions to aging structures, predicting failures, and improving integrity and safety for the transportation, defense, and consumer products industries.

OUR APPROACH

Battelle has developed the most advanced method known in the world to predict fatigue life, referred to as the Battelle mesh-insensitive structural stress method (SSM), the master S-N curve approach and Verity. This revolutionary method is based on a patented formulation that transforms nodal forces from a typical finite element model into a structural stress definition at any geometric discontinuities in fabricated structures such as welds, notches, holes, or angles. The method has been validated for fatigue design and life prediction of welded structures in automotive, appliance, aerospace, and heavy machinery industries and has been recently adopted by the revised ASME Codes and Standards (Div 2 Part 5 Design by Analysis and API 579/ASME FFS-1). Additional research is ongoing to demonstrate that this same method can be reliably applied to predict fatigue life in fields such as electronic packaging and composite materials.

Our clients benefit from the application of these unique capabilities through:

• Accurate fatigue & fatigue life predictions
• Cost reductions realized from reduced material content, process improvement, and less physical fatigue testing
• Increased reliability
• Shortened Design/Development cycles
• Lower warranty claims, extended field service

Industries where these capabilities have been applied and proven include:

• Automotive
• Petrochemical
• Offshore/marine structures
• Heavy Equipment
• Aerospace

For further information on the mesh-insensitivity structural stress method, please visit www.VeritySSM.com.

A commercial version of the method is now available as a verity module in fe-safe distributed by Safe Technology Ltd., based in the UK, www.safetechnology.com.