The response of solids to elastic/plastic indentation. I. Stresses and residual stresses

Journal Article · Fri Jan 01 00:00:00 EST 1982 · Journal of Applied Physics

DOI:https://doi.org/10.1063/1.329930· OSTI ID:1108755

Chiang, S. S. ^[1]; Marshall, D. B. ^[1]; Evans, A. G. ^[1]

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1. Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States); Univ. of California, Berkeley, CA (United States)

We present a new approach for analyzing indentation plasticity and for determining indentation stress fields. The analysis permits relations to be established between material properties (notably hardness, yield strength, and elastic modulus) and the dimensions of the indentation and plastic zone. The predictions are demonstrated to correlate with observations performed on a wide range of materials. The indentation stress fields are computed along trajectories pertinent to three dominant indentation crack systems: radial, median, and lateral cracks. Lastly, the peak load and residual tensile stresses are shown to be consistent with observed trends in indentation fracture.

• Research Organization: Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)
• Sponsoring Organization: USDOE
• DOE Contract Number: AC02-05CH11231; W-7405-ENG-48
• OSTI ID: 1108755
• Report Number(s): LBL-11842
• Journal Information: Journal of Applied Physics, Vol. 53, Issue 1; ISSN 0021-8979
• Publisher: American Institute of Physics (AIP)
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE