

This module will provide an introductory discussionof several points needed to interpret these CURVES, and in doing so will also provide a preliminaryoverview of several aspects of a material s mechanical properties.Ģ However, this module willnot attempt to survey the broad range of STRESS-STRAIN CURVES exhibited by modern engineeringmaterials (the atlas by Boyer cited in the References section can be consulted for this).

However, theyare not without some subtlety, especially in the case of ductile materials that can undergo sub-stantial geometrical change during testing. 1 STRESS-STRAIN CURVESD avid RoylanceDepartment of Materials Science and EngineeringMassachusetts institute of Technolog圜ambridge, MA 02139 AugIntroductionStress- strain CURVES are an extremely important graphical measure of a material s mechanicalproperties, and all students of Mechanics of Materials will encounter them often.
