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UKAEA-CCFE-PR(25)3282025
Experiments and finite element modelling have been used to explore a method for miniaturising fibre push-out testing to the scale of thin ion irradiated layers. Correlation of interfacial surface area to debond stress has been identified for short fibres, and is related to a size effect following a Weibull distribution. Weibull analysis may be us…
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UKAEA-CCFE-PR(25)3242024
Calculation of stresses from high-resolution electron-backscatter diffraction (EBSD) maps has been a quite useful tool for understanding single- and polycrystal deformation. In this research, we used the weak form of a least-squares fit to the experimental measurements together with mechanical constraints in both two- and three-dimensional stress…
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UKAEA-CCFE-PR(25)3242024
Calculation of stresses from high-resolution electron-backscatter diffraction (EBSD) maps has been a quite useful tool for understanding single- and polycrystal deformation. In this research, we used the weak form of a least-squares fit to the experimental measurements together with mechanical constraints in both two- and three-dimensional stress…
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UKAEA-CCFE-PR(24)2542023
Conventional crystal plasticity (CP) solvers are based on a Newton-Raphson (NR) approach which use an initial guess for the free variables (often stress) to be solved. These solvers are limited by a finite interval of convergence and often fail when the free variable falls outside this interval. Solution failure results in the reduction of the t…
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