Measured Strain/Calculated Stress
The use of strain gages to measure the strain and calculate the induced stress has been long recognized as a way to predict the long term performance of a product under stress.
The commonly used Von Mises failure criterion can easily be calculated using either a 2 element 90° Tee Rosette (assuming max/min strain directions are known) or a 3 element Rectangular Rosette in conjunction with one of our StrainSmart data systems. System 7000, System 8000, StrainSmart
StrainSmart allows complete confidence in the measured strains and the calculated stress via shunt calibration (scaling to take leadwire desensitization into account) and well documented formulae (Mohr’s circle and Hooke’s law)