This study used the vacuum-bag-only (VBO) process to fabricate angle composite parts with interleaved layup of prepreg and dry fibers. The quality is investigated by statistical methods, which are divided into two parts: geometric characteristics internal characteristics. results indicated that part fabricated convex mold presented higher dimension stability uniformity as compared concave mold....

Porcelain laminate veneers are used routinely in cosmetic dentistry. The public usually refers to this mode of treatment simply as “veneers.” Their popularity has increased because of television makeover programs, commercials, and magazine advertisements. Porcelain laminate veneers have so increased in their attractiveness that the general public is demanding this type of instant makeover. Furt...

A boundary element formulation is presented in this work for transient heat conduction analysis of threedimensional (3D) fiber-reinforced materials. The cylindrical-shaped fibers in a 3D matrix are idealized by a system of curvilinear line elements with a prescribed diameter. The variations in the temperature and flux fields in the circumferential direction are represented in terms of a trigono...

The present paper investigated the impact and compression after behavior of thin carbon fiber epoxy plates manufactured from prepreg platelet molding compound (PPMC) with two different discontinuous length, 25.5 mm 12.7 mm, compared it continuous quasi-isotropic composite laminate a similar plate thickness. results dynamic testing showed that PPMC/12.7 exhibited larger amount absorbed energy, w...

Two-dimensional finite element simulations and experiments are presented to examine the ultrasonic wave propagation behavior in the corner section of CFRP (carbon fiber reinforced plastics) laminate structures. The numerical model consists of a right-angle corner section of CFRP laminate immersed in water and subjected to the ultrasonic wave incidence from its inner or outer side. The anisotrop...

A multi-objective optimization approach for fibrous composite plates with curvilinear fibers is proposed in the present study. The non-dominated sorting genetic algorithm (NSGA-II) is used to obtain Pareto-optimum solutions, where the presence of a trade-off relation between the mechanical performance and curvatures of reinforcing fibers has been established. The in-plane strength around a circ...

An absorbing material–conductor laminate is widely used for electromagnetic compatibility of electronic circuits at microwave frequencies. Such a laminate when properly designed will exhibit good results in terms of electromagnetic interference and compatibility. In this paper, microwave absorbing materials like 1) Ca-NiTi hexa ferrite composites (Ca (NiTi)x Fe12-2xO19) for x = 0.4, 2) M-Type B...

In this research, the mechanical properties were studied from experimental, theoretical, and numerical aspects of sports prosthetic foot for purpose providing a sporty limb with high performance, easy to use an appropriate financial cost by amputees who have lost their lower limbs (amputation below knee) in practicing activities overcoming physical disability. The dimensions blades calculated b...

The microscopic Bouligand-type architectures of fish scales demonstrate a notable efficiency in enhancing the damage tolerance materials; nevertheless, it is challenging to reproduce metals. Here bioinspired tungsten-copper composites with different mimicking were fabricated by infiltrating copper melt into woven contextures tungsten fibers. These exhibit synergetic enhancement both strength an...