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Partition of deformation and anelastic energies in multiple impacts in copper

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Abstract

Response of a copper specimen to a large number of impacts by a single indenter was investigated. Work hardening produced during the first few impacts was studied based on measurements of impact parameters. Analysis of the energy distribution during impacts indicated that a large portion of the energy is expended in anelastic effects. Study of the subsurface microstructure showed a dislocation cell structure similar to the cell structure developed in fatigued materials. Finite element analysis of the stress distribution during quasi-static indentation suggests that one of the possible mechanism's contribution to material removal is a fatigue-like tensile-compression cyclic loading.

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Authors and Affiliations

  1. College of Engineering, University of Delaware, 19716, Newark, Delaware, USA

    Irwin G. Greenfield & Elsa B. Iturbe

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  1. Irwin G. Greenfield
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  2. Elsa B. Iturbe
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Greenfield, I.G., Iturbe, E.B. Partition of deformation and anelastic energies in multiple impacts in copper. J Mater Sci 20, 4399–4406 (1985). https://doi.org/10.1007/BF00559328

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  • DOI: https://doi.org/10.1007/BF00559328

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