-
UKAEA-CCFE-PR(25)3382025
Tungsten-based BCC superalloys utilising coherent intermetallic strengthening offer a route to improved high temperature
-
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…
-
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…
-
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…
-
UKAEA-CCFE-PR(24)2102023
This work addresses in-situ synergistic irradiation and thermomechanical loading of nuclear reactor components by linking new mechanistic understanding with crystal plasticity finite element modelling to describe the formation and thermal and mechanical annihilation of dislocation loops. A model of pressurised reactor cladding is constructed to …
-
UKAEA-CCFE-PR(23)1372022
The International Thermonuclear Experimental Reactor (ITER) is an international nuclear fusion research and engineering project with the aim to prove the feasibility of nuclear fusion as a large-scale carbon-free source of energy. The reactor vessel contains several diagnostic windows that provide a line of sight to the plasma. Design and qualif…
-
UKAEA-CCFE-PR(22)632022
Classical crystal plasticity formulation based on dislocation slip was extended to include the mechanisms of dislocation channelling, with associated strain softening which is observed in many alloys post irradiation. The performance of the model was evaluated against experimental data on Zircaloy-4, which included engineering stress-strain respons…
-
UKAEA-CCFE-PR(19)012018
The effects of radiation damage on materials are strongly dependant on temperature, making it arguably the most significant parameter of concern in nuclear engineering. Owing to the challenges and expense of irradiating and testing materials, material property data is often limited to few irradiation conditions and material variants. A new techniqu…
Showing 1 - 8 of 8 UKAEA Paper Results
Page 1 of 1