In everyday life solid material objects come in contact with each other, exerting and transferring forces. What happens to the materials at the contact depends on the relative hardness of the two and the magnitude of the stresses induced relative to their yield or fracture strengths. To be able to predict what can happen, the hardness of materials is tested and measured. The science of mechanics of materials aims to relate hardness to the more fundamental properties, such a modulus of...[Show more]
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