Strain measures the deformation a material undergoes due to stress from "summary" of Stress and Strain by Winthrop Dickinson Means
The concept of strain in materials science is a crucial one, as it directly relates to the deformation a material experiences when subjected to external forces or stresses. When a material is subjected to stress, it undergoes a change in shape or size, which is known as deformation. This deformation is quantified by the concept of strain, which measures the amount of deformation that a material undergoes due to the applied stress. Strain is defined as the ratio of the change in length or volume of a material to its original length or volume. It is a dimensionless quantity that provides information about how much a material has deformed under stress. In other words, strain describes the relative change in shape or size of a material when subjected to external forces. The...
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