In the manufacturing process of innovative fiber-based composite materials, natural fibers are among most commonly employed reinforcements. this study, Enset/Sisal (E/S) fiber with a polyester matrix was used to develop hybrid composites. Hand layup methods were for sample preparation from untreated, 5%, and 10% alkali-treated unidirectional woven orientations having 50:50 volume ratios. The me...

Uniform Fiber Bragg Grating sensors based on Polarization-Maintaining fibers are designed for simultaneous longitudinal strain and temperature measurement of Carbon Reinforced Polymer laminates. Panda, Bow tie Pseudo-rectangle optical fiber shape sections investigated employing three different embedding methods, each fiber. The simulation accurately takes into account that the embedded in unidi...

SiC/SiC composites are resistant to high temperatures making them excellent candidates for aeronautical or nuclear applications. The robustness of the mechanical behavior CVI-SiC/SiC tubes fuel cladding was examined in this paper. loading direction parallel tube axis, and fibers were oriented ±45° with respect axis. tensile analyzed considering as a unidirectional composite. exhibits convention...

In fibrous composites, tensile strength of reinforcements exhibits a stochastic nature, and the mechanical properties of the composites are significantly influenced by such strength variability. The present study aims at providing a comparative investigation of the influence of the statistical variation in fiber strength on the tensile properties of unidirectional composites reinforced by bambo...

An investigation of the thermal expansion behavior of ceramic fibrous monoliths (FMs) is presented. The emphasis is on the development and validation of material models applicable to Si3N4/BN FMs in both unidirectional and cross-ply architectures. Approximate analytical models are developed for the coefficient of thermal expansion (CTE) based on the analysis of representative unit cells of the ...

Results of optical frequency transfer over a carrier-grade dense-wavelength-division-multiplexing (DWDM) optical fiber network are presented. The relation between soil temperature changes on a buried optical fiber and frequency changes of an optical carrier through the fiber is modeled. Soil temperatures, measured at various depths by the Royal Netherlands Meteorology Institute (KNMI) are compa...

1. Abstract The aim of this work is to perform hierarchical optimization [1] in laminated composite structures, considering simultaneously macroscopic and microscopic levels in the design of the structure and its material. In the macroscopic level, the optimization algorithm cares with orientations and fiber volume fractions of unidirectionally reinforced composite material layers. In the micro...