SAE J 932

In the analysis and measurement of residual stresses of materials, it has been noted that there are frequently differences in interpretation of the terms macrostrain and microstrain. To assist communication among research personnel in this area, definitions for these two terms are suggested by the Fatigue Design and Evaluation Committee of SAE. Since macrostress is commonly computed from macrostrain in residual stress analysis, to be consistent, the definitions given are for macrostrain and microstrain.

This product replaces:SAE J 932 - Definitions for Macrostrain and Microstrain