Laminated composite plates are widely used in modern structures. Resins of composites are almost made of polymers which show time dependent and and in some cases stress dependent behaviour. In this paper, a laminated composite plate is analysed using a multiscale method. At first, material properties of a lamina is obtained using an analytical micromechanical approach called simplified unit cel...

Current research concentrates on the impact properties of a particle reinforced polymer matrix composite material. The composite material consists of unsaturated polyester resin that is reinforced with aluminium hydroxide. Aluminium hydroxide acts as the hard phase and polyester as the binding agent. The aim of the work was to understand how the particle size and the filler material’s mass frac...

If the electrical resistance of a material depends upon external straining, the material exhibits ‘piezoresistivity’. The piezoresistive behavior has been realized in an electrically conductive elastomer composite where the microstructure of conductive fillers can be changed under finite deformation of elastomer, resulting in the change of the composite resistivity. In this paper, we analyze th...

This study proposes boron nitride nanotube (BNNT) reinforced hydroxyapatite (HA) as a novel composite material for orthopedic implant applications. The spark plasma sintered (SPS) composite structure shows higher density compared to HA. Minimal lattice mismatch between HA and BNNT leads to coherent bonding and strong interface. HA-4 wt% BNNT composite offers excellent mechanical properties-120%...

A nano-hydroxyapatite/collagen composite was prepared by precipitation of hydroxyapatite from an aqueous solution onto collagen. Mouse peritoneal macrophages were used to investigate the in vitro biodegradation of the composite. The results showed the mechanism of phagocytosis and extracellular degradation process. The cells that belong to the mononuclear phagocyte system showed some morphologi...

This paper reports the use of a recent composite material, i-PDMS, made of carbonyl iron microparticles mixed in a PolyDiMethylSiloxane (PDMS) matrix, for magnetophoretic functions such as capture and separation. Indeed, we demonstrated that this composite can locally generate high magnetic field gradients when placed between two permanent magnets. We first investigated the molding resolution o...

A common debate about the definition of composite materials among composite engineers and materials scientists continues to this day. More recently, biomedical engineers have used the term composite prolifically for newly developed biomaterials, and it might be argued that not every usage of the term composite for a biomaterial would satisfy the traditional composite engineer, who is used to th...

statement of problem: the bond strength between restorative material and tooth structure is so important for conduction of durable restoration. considering the recent attention to low shrinkage composite resins, evaluation of micro tensile bond strength of these materials would be valuable. objectives: to compare the microtensile bond strength of silorane composite resin (filtek p90) with the c...

The work presents the analysis of the character of a simultaneous plastic fl ow of composite material of a hard coresoft sleeve structure. Experimental research work using model composite material Aluminium-Lead and theoretical analysis allowed to identify the initial cracking conditions, its character and localization, depending on geometrical parameters of the composite materials and the extr...

Composites are presently the most developing and particularly attractive special-purpose construction materials for ballistic applications, among others. They are the basic raw materials used in the production of composite ballistic shields, such as shrapnel and bullet-proof helmets, means of transport armour, bullet-proof shields, explosion protection, additional ballistic insets for shrapnel ...