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• W3036486031 abstract "The magnitude of yield and flow stresses in aged Inconel 718 are observed to be different in tension and compression. This phenomenon, called the Strength differential (SD), contradicts the metal plasticity axiom that the second deviatoric stress invariant alone is sufficient for representing yield and flow. Apparently, at least one of the other two stress invariants is also significant. A unified viscoplastic model was developed that is able to account for the SD effect in aged Inconel 718. Building this model involved both theory and experiments. First, a general threshold function was proposed that depends on all three stress invariants and then the flow and evolution laws were developed using a potential-based thermodynamic framework. Judiciously chosen shear and axial tests were conducted to characterize the material. Shear tests involved monotonic loading, relaxation, and creep tests with different loading rates and load levels. The axial tests were tension and compression tests that resulted in sufficiently large inelastic strains. All tests were performed at 650 C. The viscoplastic material parameters were determined by optimizing the fit to the shear tests, during which the first and the third stress invariants remained zero. The threshold surface parameters were then fit to the tension and compression test data. An experimental procedure was established to quantify the effect of each stress invariant on inelastic deformation. This requires conducting tests with nonproportional three-dimensional load paths. Validation of the model was done using biaxial tests on tubular specimens of aged Inconel 718 using proportional and nonproportional axial-torsion loading. These biaxial tests also helped to determine the most appropriate form of the threshold function; that is, how to combine the stress invariants. Of the set of trial threshold functions, the ones that incorporated the third stress invariant give the best predictions. However, inclusion of the first stress invariant does not significantly improve the model predictions. The model shows excellent predictive capability for nonproportional load paths. Additionally, it reduces to the well-known models of Mises Drucker and Drucker-Prager. The requisite experiments involve reasonably simple load paths in the axial-shear stress plane and hence can be performed on a variety of different materials: be they metallic, geological. polymeric, ceramic or granular. The general form of the threshold function allows representation of inelastic deformation in a range of materials." @default.
• W3036486031 created "2020-06-25" @default.
• W3036486031 creator A5051630026 @default.
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• W3036486031 date "2013-03-13" @default.
• W3036486031 modified "2023-09-23" @default.
• W3036486031 title "Viscoplastic Model Development to Account for Strength Differential: Application to Aged Inconel 718 at Elevated Temperature" @default.
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• W3036486031 cites W1636402226 @default.
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• W3036486031 cites W1978087020 @default.
• W3036486031 cites W1982837989 @default.
• W3036486031 cites W1984099354 @default.
• W3036486031 cites W1986464267 @default.
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• W3036486031 cites W2008790339 @default.
• W3036486031 cites W2009212817 @default.
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• W3036486031 cites W2017312146 @default.
• W3036486031 cites W2017791744 @default.
• W3036486031 cites W2020168815 @default.
• W3036486031 cites W2021822980 @default.
• W3036486031 cites W2022571012 @default.
• W3036486031 cites W2024566842 @default.
• W3036486031 cites W2032509706 @default.
• W3036486031 cites W2044661395 @default.
• W3036486031 cites W2045015040 @default.
• W3036486031 cites W2051056314 @default.
• W3036486031 cites W2056338336 @default.
• W3036486031 cites W2057022818 @default.
• W3036486031 cites W2058043530 @default.
• W3036486031 cites W2058205997 @default.
• W3036486031 cites W2058615280 @default.
• W3036486031 cites W2059053243 @default.
• W3036486031 cites W2060489052 @default.
• W3036486031 cites W2060968503 @default.
• W3036486031 cites W2062696582 @default.
• W3036486031 cites W2064802921 @default.
• W3036486031 cites W2067818497 @default.
• W3036486031 cites W2069276015 @default.
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• W3036486031 cites W74331881 @default.
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