A dimensional analysis has been made of elastic-plastic indentation of an anisotropic solid, and of a solid showing pressure-sensitive yield behavior. It is found that, for indentation with sharp, self-similar indenters, where is the load applied by the indenter and δ is the corresponding distance of penetration of the indenter into the solid. This extends and generalizes a similar result obtained for isotropic solids showing conventional plastic behavior. When a strain-gradient plasticity is incorporated into the material model, then it is found that is no longer proportional to Implications of the results for the indentation size-effect and for the determination of stress-strain curves from indentation are discussed.
A Generalized Load-Penetration Relation for Sharp Indenters and the Indentation Size Effect
Contributed by the Applied Mechanics Division of THE AMERICAN SOCIETY OF MECHANICAL ENGINEERS for publication in the ASME JOURNAL OF APPLIED MECHANICS. Manuscript received by the ASME Applied Mechanics Division, Jan. 25, 2001; final revision, Oct. 5, 2001. Associate Editor: A. K. Mal.
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Li, Z. Y., Chandrasekar , S., and Yang , H. T. (May 3, 2002). "A Generalized Load-Penetration Relation for Sharp Indenters and the Indentation Size Effect ." ASME. J. Appl. Mech. May 2002; 69(3): 394–396. https://doi.org/10.1115/1.1458557
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