Engineering Mechanics

Proceedings Vol. 22 (2016)

ENGINEERING MECHANICS 2016

Copyright © 2016 Institute of Thermomechanics, Academy of Sciences of the Czech Republic, v.v.i., Prague

 

Židlický B., Mařík J., Jandera M.
pages 669 - 672, full text

An experimental investigation of the cold-forming effect on mechanical properties of several grades of stainless steel is presented. The research is focused on basic grades of stainless steel, namely austenitic (1.4404), ferritic (1.4003), duplex (1.4462) and lean-duplex (1.4162) as correctly described cold-forming effect implies a possible strong increase of resistance. The test programme includes set of coupon tests of the material with various levels of induced plastic deformation. Measurement results serve to further modelling of stress-strain response and predicting of mechanical properties of cold-formed stainless steel. The general properties (0.2% proof tensile strength, ultimate tensile strength, ductility and nonlinearity) of cold-formed material were evaluated as well as values of the unformed material. In addition, other material properties were also described, such as the degree of stress-strain diagram non-linearity or anisotropy, modulus of elasticity of cold-formed or cold-worked stainless steel etc.

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