The purpose of this study is to investigate the efficiency of a double-layer roof in collecting solar energy as an application to the areas such as raising high-end temperature of organic Rankine cycle (ORC). The by-product of the solar roof is to reduce building air-conditioning loads. The experimental apparatus are arranged to evaluate the effects of the solar roof in absorbing solar energy. ...

Abstract In this paper, first, the surface acoustic wave (SAW) propagation mode and a method of analyzing property are introduced briefly. Then, typical composite substrate structures that have been developed to obtain high-performance SAW devices reviewed. Furthermore, recent results obtained by author research colleagues on resonance properties leaky (LSAW) longitudinal-type LSAW dissimilar-m...

In this paper to predict the critical conditions for onset of elastic-plastic wrinkling of flange of a two-layered circular blank during the deep-drawing process a closed-form semi-analytical elastic-plastic solution using Tresca yield criterion alongwith deformation theory in plasticity with considernig the perfectly plastic behaviour of materials is presented. Simplifying the presented soluti...

The aim of this paper is to investigate adhesion property between nano-layered filler and the polymer matrix using a combination of experimental and micromechanical models as well as the changes in yield strength and stiffness of a layered silicate-filled epoxy nanocomposite. The results indicate that addition of intercalated layered silicate particles increased Young’s modulus and yield streng...

This paper extends the previous work of authors and presents a non-layered Finite Volume formulation for the elasto-plastic analysis of Mindlin-Reissner plates. The incremental algorithm of the elasto-plastic solution procedure is shown in detail. The performance of the formulation is examined by analyzing of plates with different boundary conditions and loading types. The results are illustrat...

Problems of wave propagation in perfect magnetoelastic conductors have been studied, among others, by Knopoff [1], Dunkin and Eringen [2], Yu and Tang [3], Paria [4]. Kalishki and Rogula [5] have discussed Rayleigh waves in a semi-infinite perfect electrical conductor for a single component magnetic field. The propagation of Rayleigh-type magnetoelastic waves in a semi-infinite perfect electric...

In this study, the vibration behavior of circular and annular graphene sheet embedded in a Visco-Pasternak foundation and coupled with temperature change and under in-plane pre-load is studied. The single-layered annular graphene sheet is coupled by an enclosing viscoelastic medium which is simulated as a Visco- Pasternak foundation. By using the nonlocal elasticity theory and classical plate t...

In highway and railway foundation projects, the mechanical properties of materials are one main indicators construction process control. The elastic modulus directly affects road surface deflection must be tested. falling ball test method K30 plate load widely used in engineering, order to explore relationship between two methods guide engineering application, applied homogeneous (homogeneous f...

Wear properties of high-density Ti2AlN oriented specimens prepared by slip casting in a high magnetic field followed SPS were investigated comparing them with nonoriented specimens. The coefficients friction the range 0.25 < μ 0.35 for both and at each load, even without lubrication, low observed. specific wear was lower than that specimens, increased increasing load. top surface specimen showe...