BEM analysis of thermal and mechanical shock in a two-dimensional finite domain considering coupled thermoelasticity

• Published in: Engineering analysis with boundary elements Vol. 24; no. 3; pp. 249 - 257
• Main Authors: Hosseini-Tehrani, P., Eslami, M.R.
• Format: Journal Article
• Language: English
• Published: Oxford Elsevier Ltd 01.03.2000; Elsevier
• Subjects: Coupled thermoelasticity; Exact sciences and technology; Fundamental areas of phenomenology (including applications); Mathematical methods in physics; Numerical approximation and analysis; Ordinary and partial differential equations, boundary value problems; Physics; Solid mechanics; Static elasticity (thermoelasticity...); Structural and continuum mechanics; Thermal and mechanical shock; Thermoelasticity and electromagnetic elasticity (electroelasticity, magnetoelasticity); Two-dimensional finite domain; Coupled thermoelasticity; Two-dimensional finite domain; Thermal and mechanical shock; Finite element method; Thermal shock; Thermoelasticity; Mathematical models; Laplace transformation; Hybrid mode; Mechanical shock
• ISSN: 0955-7997; 1873-197X
• DOI: 10.1016/S0955-7997(99)00063-6

A boundary element method based on the Laplace-transform technique is developed for transient coupled thermoelasticity problems of two-dimensional finite domain. The Laplace-transform method is applied to the time domain and the resulting equations in the transformed field are discretized using the boundary element method. The nodal dimensionless temperature and displacements in the transformed domain are inverted to obtain the actual physical quantities, using the numerical inversion of the Laplace-transform method. The work is concerned with the thermal and mechanical shocks in a finite domain considering classical coupled theory of thermoelasticity. Elastic and thermoelastic wave creation and propagation in a finite domain and their effects on each other are investigated. Numerical implementations are presented and compared with the known data.