‎In this paper‎, ‎we have investigated the chaotic behavior of thermal convection in couple stress liquid saturated porous layer subject to gravity‎, ‎heated from below and cooled from above‎, ‎based on theory of dynamical system‎. ‎A low dimensional Lorenz‎- ‎like model is obtained by using Galerkin-truncation approximation‎. ‎We found that there is proportional relation between scaled couple ...

The use of microbolometers for Thermoelastic Stress Analysis (TSA) has the potential substantially reducing deployment costs, as well providing more compact and lightweight solutions in comparison to costly, bulky less rugged photon detector based infrared cameras. However, microbolometer performance terms response time sensitivity is than what can be achieved with detectors. As TSA becoming wi...

We examine thermoelastic equations of state for silicate perovskite based on data from recent static compressiori studies. We analyze trade-offs among the fitting parameters arid examine data sets for possible effects of metastability and of Mg-Fe solid solution. Significant differences are found between equations of' state based on low pressure measurements obtained for perovskite outside of i...

The effect of geometry on thermoelastic damping in micro-beam resonators is evaluated using an eigenvalue formulation and a customized finite element method. The vented clamped–clamped (CC) and clamped-free (CF) beams with square-shaped vents along their centerlines, are both analyzed by the finite element method. The quality factor and the resonant frequency are obtained as functions of variou...

In this paper, we focus on the first stage of transition to Rayleigh–Bénard convection in soft-jammed systems (yield stress fluids) confined a parallelepiped box heated from bottom. Up yielding, material is solid-state with constant elastic modulus. By means linear thermoelastic model, an analytical solution for stresses and strains induced by gravity temperature gradient derived. The allows us...