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A unified correlation model describing global properties at elastoplastic sharp indentation contact
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- Olsson, Erik (author)
- KTH,Hållfasthetslära (Inst.)
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- Larsson, Per Lennart (author)
- KTH,Hållfasthetslära (Inst.)
- KTH Hållfasthetslära (Inst) (creator_code:org_t)
- Elsevier, 2016
- 2016
- English.
- In: Tribology International. - : Elsevier. - 0301-679X .- 1879-2464. ; 103, s. 252-260
- Journal article (peer-reviewed)
Abstract
Subject headings
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- The correlation of sharp indentation testing is analyzed and discussed based on present and previous numerical findings. In particular, correlation of two global indentation properties, hardness and relative contact area, at sharp indentation of classical elastic-plastic materials is discussed in detail. It is shown that the results cannot in general, and in particular at high strain hardening, be correlated accurately using a single parameter, comprising both geometrical and mechanical properties, with the uniaxial stress-strain curve represented by the flow stress at a representative value on the effective plastic strain. Instead, also the level of the plastic hardening must be considered. Based on this finding, a unified model for correlation of global properties is presented for cone indentation of elastoplastic materials.
Subject headings
- TEKNIK OCH TEKNOLOGIER -- Materialteknik (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Materials Engineering (hsv//eng)
Keyword
- Sharp indentation
- Elastic-plastic materials
- Correlation
- Indentation hardness
Publication and Content Type
- ref (subject category)
- art (subject category)
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