This paper presents the results obtained with the simulations of a sandwich rectangular plate made of carbon/epoxy composite when subjected to temperature and humidity cycles. Fickian diffusion process, moisture transport along the interfaces and damage caused by slipping and debonding between the components of the microscopic structure are considered. The application of the design methodology ...

The magnetoelectric response of magnetostrictive/piezoelectric laminate composites has been investigated. Based on the piezoelectric and piezomagnetic constitutive equations, and motion equation for the composite plate, the magnetoelectric equivalent circuit has been derived, and the magnetoelectric coefficients predicted. Prototype devices of, as an application example, Terfenol-D/PZT composit...

In the present study EP142-C510-50 woven carbon fiber composite was investigated from structural/ mechanical point of view aiming manufacturing parts for aeronautical industry. The composites were obtained by hand lay-up process. Prior to mechanical tests, the cure reaction results of composite resins specimens were analyzed by using DSC technique. The EP142 epoxy matrix was cured/polymerized a...

The use of composite materials has been increasing in the aeronautical industry for use in primary structures, such as wing and fuselage, where it can significantly save structural weight. Composite laminate optimization can be done as a discrete variable problem constrained by material strength, buckling and natural frequency. The solution for discrete variable problem based on combinatorial o...

This research presents, buckling and free vibration analysis of fiber metal-laminated (FML) plates on a total and partial elastic foundation using the generalized differential quadrature method (GDQM). The partial foundation consists of multi-section Winkler and Pasternak type elastic foundation. Taking into consideration the first-order shear deformation theory (FSDT), FML plate is modeled and...

An adjustable spiral phase plate and computer-generated holograms were investigated as methods for creating optical vortices. The phase plate was created by cutting a plastic microscope cover slip from a corner to its center and separating the resultant tabs by inserting a uniformly thick wedge between them. The computer-generated holograms were designed by mathematically interfering an oblique...

In order to simulate the mechanical behavior of large structures assembled from thin composite panels, we propose a coupling technique which substitutes local 3D models for the global plate model in the critical zones where plate modeling is inadequate. The transition from 3D to 2D is based on stress and displacement distributions associated with Saint-Venant problems which are precalculated au...

Acoustic emission (AE) signals propagate as the extensional and ßexural plate modes in thin composite plates and plate-like geometries such as shells, pipes, and tubes. The relative amplitude of the two modes depends on the directionality of the source motion. For source motions with large out-ofplane components such as delaminations or particle impact, the ßexural or bending plate mode dominat...