The main objective of this research was to investigate the effect of material properties, strain-rate sensitivity, and barreling on the behavior of friction calibration curves. The compression tests were conducted to obtain the necessary material properties for the finite element analysis. A series of ring compression tests were then conducted in order to determine the magnitude of the friction coefficient, μ. The experiments were first conducted for the modeling materials, namely, white and black plasticine and later on, for aluminum, copper, bronze, and brass. The experiments were then simulated via an elastic-plastic finite element code (ABAQUS). Contrary to the results available in the literature, where the same friction calibration curves are recommended for all types of materials and test conditions, the results of this investigation showed that friction calibration curves are indeed affected by the material properties and test conditions.

Issue Section:
Technical Papers
Keywords:
compressive testing, finite element analysis, aluminium, copper, brass, elastoplasticity, friction, calibration, Friction Coefficient, Ring Compression Test, Metal Forming Processes
Topics:
Calibration, Compression, Friction, Finite element analysis
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