SURFACE LAYER TEMPERATURE-DEPENDENT CONSTITUTIVE MODEL OF BRONZE CuAl8Fe3, SUBJECTED TO DIAMOND BURNISHING

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  • TITLE: SURFACE LAYER TEMPERATURE-DEPENDENT CONSTITUTIVE MODEL OF BRONZE CuAl8Fe3, SUBJECTED TO DIAMOND BURNISHING
  • AUTHOR(S): V. P. Dunchev, D. K. Drumeva
  • ABSTRACT: In this article, the temperature-dependent constitutive model of CuAl8Fe3 bronze is developed, using the "flow stress"concept. The model defines the dependence between the stress and strain tensors for a point on the surface layer subjected to diamond burnishing. The adequacy of the chosen constitutive model was achieved by comparing the deformed state of the surface layer obtained via an experimental test (indentation test) and inverse finite element analysis of the experimental test. The developed constitutive model takes into account the temperature influence on the surface and sub-surface layers of CuAl8Fe3 bronze in the range of (20 ÷ 250) ° C . The model serves the fully coupled thermal-stress finite element analysis in order to study the stressed and strained state in rotational components made of bronze CuAl8Fe3, subjected to diamond burnishing.
  • PAGES: 3-
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