A COMPARATIVE STUDY OF MATERIAL FLOW MODELS FOR FINITE ELEMENT SIMULATION OF METAL CUTTING

Nguyen Tuan Anh

Abstract


IIn recent years, finite element method (FEM) has been widely used
for studying metal cutting process. The reliability of FEM simulation
however depends considerably on the assumed material model. Hence, it
is imperative to compare and verify the matreial model before further
application. In this study, a series of simulations are carried out to
compare 3 popular types of material model: high-speed compression,
split Hopkinson pressure bar, and machining. The simulation results
are compared with experiment to identify the best suitable method of
determining flow stress data for high-speed machining.

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