Finite Element Analysis of Coupled Thermoelasticity
نویسندگان
چکیده
Most thermal stress analyses assume that the determination of the temperature field is uncoupled from that of the stress and displacement fields, while assuming that the stress and displacement fields depend on the temperature field. This semi-coupled approach to thermoelasticity is not entirely consistent. In this paper the governing equations for the fully coupled theory of thermoelasticity are developed and a method for solving these equations, based on the finite element technique, is proposed. The numerical method is used to obtain approximate solutions which are then compared with analytical solutions to a number of test problems. An assessment is also made of the importance of the full coupling. The use of the solution technique is further illustrated with some example problems from geotechnical engineering.
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