arrows arrow-right arrow-left menu search rss youtube linkedin twitter facebook instagram arrow-play linkedIn

Battelle Path-Dependent Maximum Range (PDMR)

Advanced multi-axial cycle-counting and fatigue-life assessment.

Some years ago, Battelle scientists recognized the need for a robust, efficient and physically sound multi-axial cycle-counting and fatigue-life assessment method for both welded and non-welded structures.

The solution: an innovative Battelle-developed, validated and patented methodology known as PDMR – a methodology that permits fatigue-life assessments of structures under general, variable amplitude, and multi-axial fatigue-loading histories.

Validated by pioneering experts across a broad array of industries, and adopted by Bureau Veritas as a new guide for fatigue design of off-shore structures, Battelle PDMR allows engineers to:

  • Assess fatigue lives for welded joints and structures under general, variable amplitude, and multi-axial fatigue loading history
  • Perform fatigue analysis of welded joints with complex loading histories
  • Optimize designs for applications from heavy machinery to offshore and marine use


Contact us today for more information.
Contact Us

PDMR’s Key Features

Battelle PDMR is based on fracture mechanics and the critical-plane approach. This technology:

  • Allows the application of nominal, structural and local stress
  • Permits application of both nominal and local strain
  • Takes into account the effect of loading path on fatigue damage
  • Studies the duration of history without limit
  • Considers stress/strain components and implements advanced convex-hull speed-up algorithm in PDMR-2D


The Benefits of PDMR

Like all of Battelle’s fatigue and welding technologies, Battelle PDMR provides the capabilities required for the most challenging industrial applications. The result: improved products that can be sent to market more quickly than ever before, thanks to:

  • Accurate and consistent fatigue-life and remaining-life assessment
  • Increased understanding of product life and performance
  • Easy implementation and automation
  • Maximized fatigue performance