Plane Strain


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Plane Strain
Plane StrainIf the stress state is such that the strain ε in one direction is considerably less than that in the other two directions, the condition is referred to as plane strain (see Fig. 2.21c), since the change in dimensions is limited to two dimensions, defining a plane. When a notched plate loaded in uniaxial tension has significant thickness, the strain in the Z direction is constrained, leading to a plane-strain condition. If strain hardening is sufficiently high, the size of the plastic zone at the crack tip is smaller than in the plane-stress case, and hence the axial stress at the crack root is very large (compare
Citation
Charlie R. Brooks; Ashok Choudhury: Failure Analysis of Engineering Materials. Plane Strain, Chapter (McGraw-Hill Professional, 2002), AccessEngineering Export