fe5b98b8a5-p-1839.pdf - Tay[1974 first modeled the temperature distribution during the orthogonal chip separation[Rakotomalala 1993 and Olovsson 1999

fe5b98b8a5-p-1839.pdf - Tay[1974 first modeled the...

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24 Tay [1974] first modeled the temperature distribution during the orthogonal machining in the ear ly 70‟s by using Eulerian formulation. The element in this approach is spatially fixed and defines a control volume, through which material flows. The element properties are calculated at fixed spatial locations. Due to the fixed nature of the approach, it is most suitable for cases where there are minimal free boundaries. The Eulerian approach does not have the problems associated with the Lagrangian formulation. The cutting action is modeled as the flow of the material around the tool. Therefore the location of the chip separation line does not need to be known in advance. No mesh distortion occurs and consequently no remeshing is required. Since the Eulerian formulation is only used to model steady state cutting, the lengthy transition from incipient to steady state condition is not simulated. Consequently, Eulerian approach is more computational efficient when compared to Lagrangian method.
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  • Fall '16
  • Karyl Sabbath
  • Thermodynamics, Eulerian, high strain rate, Eulerian formulation

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