Indentation size effects in crystalline materials: A law for strain gradient plasticity
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Cites background from "Indentation size effects in crystal..."
...Size effects can be introduced into CPFE frameworks by using phenomenological strain gradient theories which were developed by Fleck et al. [229], Fleck and Hutchinson [230], and Nix and Gao [231]....
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...[229], Fleck and Hutchinson [230], and Nix and Gao [231]....
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"Indentation size effects in crystal..." refers background or methods in this paper
... To account for these strain gradient effects, Fleck and Hutchinson (1993) have...
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...where xi, is the so-called curvature tensor ( Fleck and Hutchinson, 1993 ) which is related to the third order strain gradient tensor by...
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...where 1 is a phenomenological length scale, p is an exponent usually taken to be 2 ( Fleck and Hutchinson, 1993 ), but can be generalized to an arbitrary number larger than 1 without destroying the basic theoretical framework (Fleck and Hutchinson, 1997)....
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...As discussed by Fleck and Hutchinson (1993, 1997) , conventional theories of plasticity...
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...In order to compare this form of strain gradient plasticity with that developed by Fleck and Hutchinson (1993, 1997) , we consider the usual power hardening law in the absence of a strain gradient...
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