Bauschinger Effect

The Bauschinger effect refers to a property of materials where the material's stress-strain characteristics change as a result of the microscopic stress distribution of the material. For example, an increase in tensile yield strength at the expense of compressive yield strength.The Bauschinger effect is named after the German engineer Johann Bauschinger ().While more tensile cold working increases the tensile yield strength, the local initial compressive yield strength after tensile cold working is actually reduced. The greater the tensile cold working, the lower the compressive yield strength.
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Bauschinger effect 包欣格效应

EFFET BAUSCHINGER

An effect wherein strain cycling of tubing causes a lowering of the yield strength of the material.

phenomenon where a metal with a certain tensile yield stress is subjected to tension into the plastic deformation range and then the load is applied in compression, the yield stress in compression is lower than in tension