The wide range of properties covered by the manufacturable fiber–matrix combinations of composite materials, along with their directional property characteristics, provides designers with material selection flexibility during designing composite material products. Meeting multiple property goals, however, complicates the design process as both the composite material selection and the component ...

A mathematical scheme is proposed here to model a damaged mechanical configuration for laminated and sandwich structures. In particular, two kinds of functions defined in the reference domain of plates and shells are introduced to weaken their mechanical properties in terms of engineering constants: a two-dimensional Gaussian function and an ellipse shaped function. By varying the geometric par...

Abstract-Several types of waves in a layered composite material were examined. In order to obtain explicit approximate solutions. a perturbation method was used. This approach views the nonhomogeneous layering as a perturbation on a homogeneous but anisotropic solid. For propagation normal to the direction of layering, it was necessary to include the second-order perturbation terms to get quali...

Fiber Bragg grating(FBG) sensors, one of the fiber optic sensors(FOS), based on the wavelength division multiplexing(WDM) technology are ideally suitable for structural health monitoring of composite materials and structures. Proper monitoring of measurands in FBG sensor systems requires accurate measurement of the Bragg center wavelength, and the ability to track rapid shifts of the wavelength...