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- W1413150818 abstract "This chapter presents a model that deals with the effect of microvoid nucleation, growth, and coalescence on the plastic response of structural metals is modeled. The formulation is valid for finite strains, and there are versions for both rate-independent and rate-dependent plasticity. Porosity is accounted for through a single parameter, the void volume fraction. Any effect of deformation-induced void shape changes is neglected. The accuracy of the model is highest for states of relatively high stress triaxiality of relatively low void volume concentration. The elastic parameters as well as the matrix-hardening properties, such as initial yield strength and a strain-hardening exponent are determined from a uniaxial tension test for the matrix material. The material model is typically used in a numerical computation, either to predict flow localization or to predict final failure by void coalescence and crack growth. Several studies of localization is used a simplified model, the M-K-model but localization is also predicted in full numerical computations." @default.
- W1413150818 created "2016-06-24" @default.
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- W1413150818 date "2001-01-01" @default.
- W1413150818 modified "2023-09-27" @default.
- W1413150818 title "The Modified Gurson Model" @default.
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- W1413150818 doi "https://doi.org/10.1016/b978-012443341-0/50048-x" @default.
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