Abstract
A numerical method is presented for the stress analysis of reactor graphitic components under conditions of plane stress, plane strain, generalized plane strain or axisymmetry. In the analysis, both the creep deformation and the irradiation-induced strains are the major concern. The mechanical response of the material is assumed to be linear viscoelastic and transversely isotropic. The constitutive relations are formulated in hereditary integral form, and the dependence of the material properties on temperature and neutron flux are considered. To illustrate the method, a numerical example on the analysis of a fuel element is presented.
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