Self-reinforced composites (SRCs) offer a high toughness, low cost, good recyclability, formability, and potential for hybridisation. Because matrix fibres are of the same material, SRCs have perfectly compatible fibre-matrix bond. Several commercial available, but no direct comparison these materials can be found in literature. In this study, we therefore compared thermal, tensile, flexural im...

the use of agriculture residues as filler in composites is increasing due to their strength, abundance and low cost. soya stalks show promising renewable natural fiber. in polyethylene composites the physical and mechanical properties (flexural resistance, tensile, impacted absorbed energy, water uptake and thickness swelling) was examined at different composites. the results showed that, the m...

Elasmobranchs (sharks, skates and rays) perform at the extremes of locomotion and feeding (i.e. long migrations, high-speed swimming and durophagy). However, very little is known about their cartilaginous skeletal structure and composition in response to loading regimes. In this study, we investigated a batoid (skate and ray) appendicular skeletal element, the propterygium, and its response to ...

The aim of the study was to find the optimum combination of materials and thicknesses to provide a tough, damage resistant multi-layer system with numerical methods to restore the damaged teeth. Extended Finite Element Method (XFEM) was used to assess the critical loads for the onset of damage modes such as radial cracks and plastic deformation in dental prostheses, which consist of a brittle o...

This paper presents a stability investigation of a special-shape arch bridge with a span of 180 m. Its structure and mechanics are significantly different from normal arch bridges because of its single arch rib skewing across the girder, its hangers hanging unevenly along the arch rib with different aslant angle, and its arch rib being subjected to massive axial compression force, bending momen...

the basic strategy of reduce the ductility demand and related concentrated tensions at moment resistance connections is reduce the section of the beam at connected region to column. by this method plastic hinge done at the reduced cross section and this local reduction decreases the demand of the components of connection. on this basis, in present study a new beam-to-column moment connection wi...

An indirect J-integral technique for measuring the tension softening curve of non-yielding materials like concrete is presented and is applied to mortars reinforced with various short fiber types (steel and synthetic). The tension softening curve serves to characterize and measure material fracture resistance. The dependence of structural behavior on material fracture resistance is investigated...

Sandwich structures made of glass-reinforced composite facesheet (FS) and honeycomb core are using in many load-carrying applications. This study aims to reduce the dependency on synthetic materials FS sandwich structure. Recently, there has been rapid growth research innovation hybrid achieve comparable performance cost, weight, environmental impact. In present research, mechanical properties ...

The Typha leaf has a structure of lightweight cantilever beam, exhibiting excellent mechanical properties with low density. Especially, the leaf blade evolved high strength and low density with high porosity. In this paper, the structure of Typha leaf was characterized by microcomputed tomography (Micro-CT) and scanning electron microscopy (SEM), and the relationship with flexural properties wa...