A variational formulation of the coupled thermo-mechanical boundary-value problem for general dissipative solids is presented. The coupled thermo-mechanical boundary-value problem under consideration consists of the equilibrium problem for a deformable, inelastic and dissipative solid with the heat conduction problem appended in addition. The variational formulation allows for general dissipati...

This dissertation presents the results of a new study on 2-D transient waves, formed through the focusing of wave energy. An extensive laboratory investigation has been undertaken for large number of wave groups with a range of amplitudes and frequency bandwidths. The results show that the focusing of wave energy can produce highly non-linear wave groups, where the nonlinearity increases with a...

The present article mainly focuses on the transient thermal dispersal within a moving plate using non-Fourier heat flux model. Furthermore, innovative, sophisticated artificial neural network strategy with Levenberg-Marquardt backpropagated scheme (ANNS-LMBS) is proposed for determining temperature in convective-radiative plate. Using dimensionless terms, energy model exchange simplified into n...

This work uses the dual-phase-lag (DPL) model of heat conduction to demonstrate the effect of temperature gradient relaxation time on the result of non-Fourier hyperbolic conduction in a finite slab subjected to a periodic thermal disturbance. DPL model combines the wave features of hyperbolic conduction with a diffusion-like feature of the evidence not captured by the hyperbolic case. For the ...

The error resulting from heat conduction i the measurement ofthe ultrasonic absorption coeffcient using the transient thermoelectric method is studied analytically. An expression for the temperature increase in a tissue specimen of finite dimensions, irradiated by a focused ultrasonic transducer, isgiven as a function of spatial coordinates, time, radial and axial beam dimensions, and absorptio...

Conduction and single-phase convective heat transfer are well understood phenomena: analytical models [1] and empirical correlations [2] allow capturing the thermal behavior of plate-type fuels or heaters in contact with a single-phase coolant. On the other hand, transient boiling heat transfer is a scarcely studied and much less understood phenomenon. Although, earlier studies have shown that ...