Health monitoring of engineering structures has gained a lot of interest over the last few years. Many engineering structures suffer damage and deterioration when exposed to various loading and environmental changes during their lifetime. This seriously affects structural performance and may even lead to catastrophic structural failures. Thus, inspection and testing of structural components for...

The effect of boundary conditions on the vibrations variable stiffness composite laminates (VSCL) with curvilinear fibers is particularly interesting because fiber orientations at plate edges and in plate’s domain can differ. Since real boundaries are not ideal limit cases usually assumed literature, a more correct model be achieved by representing as elastically restrained edges. This approach...

Vibration of double-graphene sheet-system is considered in this study. Graphene sheets are coupled by Pasternak elastic medium. Classic and Mindlin plate theories are utilized for modeling the coupled system. Upper sheet carries a moving mass. Governing equations are derived using energy method and Hamilton’s principle considering surface stress effects and nonlocal parameter.  Using Galerkin m...

Vibrations of rotor systems are largely determined by elastic characteristics supports. In the general case, dependence displacements on force for such supports is nonlinear. This applies to bearing various types. addition bearings, elements also used in systems. They designed change overall stiffness The paper analyzes radial flexible ring dampers For this, two main approaches proposed. first ...

the present study is the first to analyze the dynamic response of a poroelastic beam subjected to a moving force. moreover, the influences of attached mass-spring systems and non-ideal supports (with local movements in the supporting points or base due to the presence of factors such as gaps, unbalanced masses, and friction or seismic excitations) on the responses were investigated. non-ideal s...

The physics potential of a high-energy photon collider is reviewed. The emphasis is put on aspects related to the symmetry breaking sector, including Higgs searches and production of longitudinal vector bosons. ENSLAPP-A-527/95 arch-ive/9508218 June 1995 § URA 14-36 du CNRS, associée à l’E.N.S de Lyon et à l’Université de Savoie. Talk presented at the Photon’95 Conference, Sheffield, England, A...

In this paper, static analysis of functionally graded annular plate resting on elastic foundation with various boundary conditions is carried out by using a semi-‍analytical approach‍ (SSM‍-DQM). The differential governing equations are presented based on the three dimensional theory of elasticity. The plate is assumed isotropic at any point, while material properties to vary exponentially thro...