Abstract In order to study the anti-penetration performance of ceramic/aramid fiber/PE-UHMW composite armor, based on FEM-SPH coupling algorithm, SPH model is established for brittle ceramic materials simulate formation cone, crack propagation and fragmentation splash process. The failure mode aramid fiber PE-UHMW analyzed. influence different projectile velocities impact points armor are resul...

Polycarbonate composites are widely spread in many industries, for product manufacturing. Although these materials being used with high fidelity, their mechanical properties will highly depend on manufacturing processes, fiber orientations respect to external loads, type of loading, environmental conditions, and so forth. This paper presents the Charpy impact behavior three polycarbonate grades...

In the deformation and cutting process of semiconductors and ceramics, especially brittle materials such as silicon carbide (SiC), the presence of high pressure phase transformation (HPPT) is of great importance for accomplishing ductile regime machining (Patten, 2007). To augment the ductile regime machining of these nominally brittle materials, the high pressure phase can be preferentially he...

Marine saponins are naturally glycosides compounds which possess important biomedical properties such as anti-cancer, antioxidant and anti-inflammatory. Nevertheless, no systematic studies on the anti-inflammatory potential of brittle star saponin and its underlying mechanisms have been reported. In this study, Ophiocoma erinaceus extracted saponin was investigated for its in vitro anti-inflamm...

Tunable filters for wavelength-division multiplexing transmission system are essential. Fiber Bragg grating (FBG) is one of the best candidates for this application. The wavelength shift of FBGs can be tuned by applying different temperature, hydrostatically pressure and strains (in traction or/and compression). A comprehensive study of using these three parameters as being tunable filters was ...

BACKGROUND Type 1 brittle asthma is a rare form of asthma. Atopy, psychosocial factors and diet may contribute to this condition. As increased dietary magnesium has a beneficial effect on lung function and selenium, vitamins A, C and E have antioxidant properties, a study was undertaken to test the hypothesis that patients with brittle asthma have diets deficient in these nutrients compared wit...

We investigate how the macroscopic response and size scaling of ultimate strength materials change when their local is sampled from a fat-tailed distribution degree disorder varied in broad range. Using equal localized load sharing fiber bundle model, we demonstrate that transition occurs perfectly brittle to quasi-brittle behaviour as amount gradually increased. When high concentration around ...

Concrete is a brittle material due to its poor tensile strength; consequently, concrete tends crack or peel under an applied external load. Previous studies have investigated the effect of incorporating fiber into concrete, which can improve strength. In this study, static and dynamic mechanical characteristics three types fiber-reinforced (FRC) were examined: carbon-fiber-reinforced (CFRC); Ke...