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Mechanical Performance Group



The Mechanical Performance Group develops measurement methods, models, data, standards, and science for the mechanical properties of advanced materials (e.g., high strength steel, aluminum alloys, composites) and materials under extreme environmental and operating conditions. The Group provides expertise needed to determine materials and system performance within and outside design limits, and generates and disseminates reliable mechanical property data in application areas such as transportation and physical infrastructure. The Group develops new and improved models, test methods and standards to accurately measure mechanical properties of advanced materials at all length and temporal scales.

The Group:
  • Generates and disseminates reliable mechanical property data;
  • Standardizes, both nationally and internationally, mechanical property test methods.
  • Performs forensic analysis of failed components and assists in investigations.

Group Competence

  • Mechanical testing at all size, rate and temperature scales
  • Multiaxial deformation and yield surface measurement
  • X-ray and neutron stress and microstructural measurements
  • Standard Reference Materials (SRM)
  • Hardness measurements and standards
  • Hydrogen embrittlement and stress-corrosion cracking
  • Finite-element analysis
  • Plasticity theory
  • Atomistic modeling
  • Shape memory alloys

Mechanical Performance - Extreme Conditions—This project provides property data, metrology, and standard test methods for materials systems under extreme conditions for areas critical to US manufacturing, homeland security, and energy …

Physical Infrastructure: Connections—Using a complementary approach of experimental measurements and detailed finite element analysis, we will develop more realistic yet computationally efficient global models incorporating bridge …

Fundamentals of Deformation—This project provides new measurement methods, property data and simulations for areas critical to US manufacturing, describing the mechanisms responsible for mechanical behavior. The mechanical …

Hardness Standardization—Our objective is to standardize and improve hardness measurement both in the U.S. and internationally. NIST is the U.S. National Metrology Institute (NMI) for hardness, and as such, is responsible …

NIST Center for Automotive Lightweighting—Our objective is to develop the measurement methodology, standards and analysis necessary for the US auto industry and base metal suppliers to transition from a strain-based to a stress-based …

Products and Services

Mechanical Performance Group
Jon Guyer, Group Leader

100 Bureau Drive, M/S 8550
Gaithersburg, MD 20899

301-975-5329 Telephone
301-975-4553 Facsimile