GENERALIZED COUPLED THERMOELASTICITY OF DISKS BASED ON THE LORD-SHULMAN MODEL

摘要

A one-dimensional generalized thermoelasticity model of a disk based on the Lord— Shulman theory is presented. The dynamic thermoelastic response of the disk under axisymmetric thermal shock loading is studied. The effects of the relaxation time and coupling coefficient are studied. The Laplace transform method is used to transform the coupled governing equations into the space domain, where the Galerkin finite element method is employed to solve the resulting equations in the transformed domain. The dimensionless temperature, displacement, and stresses in the transformed domain are inverted to obtain the actual physical quantities using the numerical inversion of the Laplace transform method.