Study on generalized electromagneto-thermoelastic coupling problems of an infinite-length cylinder

Electromagneto-thermoelasticity coupling problems for an infinite-length cylinder, made of perfect conduction materials, subjected to thermal impact are studied by adopting L-S generalized ther-moelasticity. The finite element control equations are established at first. In order to avoid the precision loss of integral transformation solution method, the problems are solved directly in time domain. The distributions of temperature, displacement, stress as well as induced magnetic field and electric field are obtained, which represent the fluctuation character of thermal and coupling effect of electromagneto-ther-malelastic in an infinite-length cylinder. The results show that the present method is an effective and exact numerical method for the generalized eletromagentic-thermoelasticity coupling problems and can obtain the temperature step of thermal wave front and fluctuation effect of thermal wave exactly.