1. Hardness Test
For these reasons, engineers define stress and strain. Stress (engineering definition) is given by: [1] Equation 1 o = F A0 Defined in this manner, the stress can be thought of as a normalized force. ... The relationship between stress and strain is given by a simplified form of Hooke's Law: [1] Equation 3 oUTS = E å Deformation in which stress and strain are proportional is called elastic deformation. ... COMPARATIVE DISCUSSION OF THREE INDENTATION HARDNESS TESTS The Rockwell hardness tes...
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- Grade Level: High School