Finite Temperature Nanovoids Evolution in FCC Metals Using Quasicontinuum Method

M. Ponga; Ignasio Romero; M. Ortiz; M.P. Ariza

doi:10.4028/www.scientific.net/KEM.488-489.387

Paper Titles

Simulation of a Strategy for the Assessment of Damage in Human Bones by Using FEM and Signal Processing
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Effect of an Internal Open Crack on Pipes Wave Propagation
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On the Stress Intensity Factors of Cracked Beams for Structural Analysis
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Cracks Interaction Effect on the Dynamic Stability of Beams under Conservative and Nonconservative Forces
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Finite Temperature Nanovoids Evolution in FCC Metals Using Quasicontinuum Method
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Bone-Cement Interface Micromechanical Model under Cyclic Loading
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Comparison of Solutions of Stress Field Based on Hertzian and Combined Numerical-Crystallographic Approaches Beneath Nanoindenter
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Influence of Boundary Conditions on Higher Order Terms of Near-Crack-Tip Stress Field in a WST Specimen
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Valuation of TMF Lifetime Calculation Methods and their Limitations of Usability
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Finite Temperature Nanovoids Evolution in FCC Metals Using Quasicontinuum Method

Abstract:

Tensile failure of metals often occurs through void nucleation, growth and coalescence. This work is concerned with the study of plastic nanovoid cavitation in face-centeredcubic (FCC) crystals at ﬁnite temperature. In particular, the Quasicontinuum (QC) method,suitably extended to ﬁnite temperatures, is taken as the basis for the analysis. We speciﬁcallyfocus on nanovoids in copper single crystals deforming in uniaxial and triaxial tension. Thecomplex structure of dislocations around the nanovoid and the evolution of stress, deformationand temperature of the sample is described in the present work.