RADIAL STRAIN RELAXATION IN A COLD WORKED ALUMINIUM ALLOY 2024·T35I PLATE SPECIMEN
Keywords:
KeywordsAbstract
Aluminium alloy 2024 T351 is used fo r carrying out cold work experiment. Altogether 16 strain
gauges have been mounted in the radial direction to measure the radial strain distribution using
HP data acquisition system and Visual Engineering Environment (VEE) software. The strain
distribution was recorded under different conditions of cold working process. The value of
elastic-plastic boundary experimentally measured matches wdl with the existing theories of
Nadai, Chang, and Rich and lmpellizeri . The experimental residual strain distribution results
compares very well with the Finite Element Method (FEM, results panrticularly for a case of full
mandrel removed condition. The recommendation is made to use the strain relaxation data for a case where mandrel need not be removed after cold working for accessing the residual strain
distribution in the specimen.
References
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