Five Definitions of Strain for Large Deformations
Five Definitions of Strain for Large Deformations
This Demonstration considers the differences between five definitions of strain when applied to large uniaxial tensile and compressive deformations. These are the engineering strain, also known as Cauchy's strain, , Hencky's strain, also known as natural or true strain, , Green's measure, also known as Kirchhoff's, , Swainger's measure, , and Almansi's measure, also known as Murnagham's, . Also shown is the ratio, , between the length of the deformed specimen, ±ΔL, and its original length, .
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