define isochoric deformation
A simple shear deformation is defined as an isochoric plane deformation in which there is a set of line elements with a given reference orientation that do not change length and orientation during the deformation.If is the fixed reference orientation in which line elements do not deform during the deformation then and.eformation implies the change in shape and/or size of the body from an initial or undeformed configuration to a current or deformed configuration (Figure 1). If after a displacement of the continuum there is a relative displacement between particles, a deformation has occurred.