한국정밀공학회지 (Journal of the Korean Society for Precision Engineering)
- 제13권5호
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- Pages.164-172
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- 1996
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- 1225-9071(pISSN)
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- 2287-8769(eISSN)
경취재료에 있어 압자압입시의 균열진전에 관한 연구
Micro Cracking and Elastic/Plastic Transition Radii Associated with Indenting on Ceramics by Diamond Indenter
초록
In hard and brittle materials as advanced ceramics indented by a hard indenter, the indenter's transition radius, was defined as critical radius which distinguishes the occurrence of the first plastic deformation from the elastic cracking as the first damaging event, is analytically and experimentally investigated. The analytical result is shown that the critical load, which not enlarge pre-existing cracks as the form of median crack beneath a indenter, is constant, and is determined by the order of
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