Time-domain finite element analysis to nonlinear transient responses of generalized diffusion-thermoelasticity with variable thermal conductivity and diffusivity

Numerous experimental and theoretical studies indicate that thermal conductivity and diffusivity in materials cannot be viewed as constants in practical analysis. This provides us a motivation to investigate the nonlinear transient responses of generalized diffusion-thermoelasticity problems with variable thermal conductivity and diffusivity. Time-domain finite element method is applied to solve the problem. Numerical results indicate that variable thermal conductivity and diffusivity have significant effects on wave propagations and nonlinear transient responses. 186