Special presentation on new methods for observing and measuring strains on parts and structures, utilizing digital video imaging.

What is the PhotoStress ® method? What is PhotoStress ® Plus? Program Highlights Who should attend? PhotoStress ® Applications

PhotoStress pattern revealed on a mechanical controlled linkage system in a passenger jet aircraft.)

What is the PhotoStress ^® method?

A special strain-sensitive coating is first bonded to the test part. Then, as test or service loads are applied, the coating is viewed through a Reflection Polariscope. The strain in the coated test part is displayed as a colorful pattern. These color patterns immediately reveal the overall strain distribution and pinpoint highly strained areas. With an optical transducer (compensator) attached to the Reflection Polariscope, quantitative strains and stresses can be obtained.

Demonstration of PhotoStress in action

What is PhotoStress ^® Plus?

A newly designed Reflection Polariscope, the LF/Z-2, incorporates a digital video camera and an interface to a computer allowing visual digital imaging not possible before. An electronic digital compensator attached to the polariscope and PSCalc™ software allow easy measurements of principal strains and stresses. The complete process is easy and simple to learn.

PhotoStress ^® Applications

    • Assembly Stress Analysis
   • Residual Stress Analysis
   • Composite Material Testing
   • Yield Detection
   • Biomechanic Applications
   • Relationship between PhotoStress and Finite-Element Analysis

** Click on an application above for one of the many case histories presented at this seminar