materials properties of their own, the material composed is known as Composite Material. The different systems of the elements are combined together to achieve a system which is more useful and more functional than any of the constituent alone. Composite materials are becoming more and more important to today’s material due to the advantages it brings to us. Some clear evidence of the advantages of composite materials is that composite materials are low in weight, resistant against corrosion, has high
INTRODUCTION: Many of the modern technologies require materials with unusual combinations of properties that cannot be met by the conventional metal alloys, ceramics and polymeric materials. This is especially true for materials that are needed for aerospace, under water and transportation applications. For example, aircraft engineers are increasingly searching for structural materials that have low densities, are strong, stiff, impact resistant, and are not easily corroded. This is rather formidable
OF HYBRID MATRIX NATURAL FIBRE COMPOSITE ABSTRACT The developments in the field of composite materials are growing tremendously day by day. One such development is the use of natural fibres as reinforcement in the composite material. This is attributed to the fact that natural fibres are environmental friendly, economical, easily available and non-abrasive. The main objective of this experimental study is to fabricate the flax-kenaf fibres reinforced hybrid composites and to evaluate
Overview of advanced polymer composites Polymer composites are assuring in Mechanical and Tribological application due to the possibility of tailoring their properties. These polymer composites have observed in application such as automotive, aerospace and sports equipment industries. When we compared to most metals and unreinforced plastics, this offer a high strength, corrosion resistant, durable and can be fabricated into complex shapes. Major advantages of composite materials are that they can
fibres during production. • No off-gassing of toxic compounds (in contrast to phenol resin bonded wood and recycled Cotton fibre parts) and reduced fogging behavior. • Price advantages both for the fibres and the applied technologies. 1.3.3. Advantages of Natural Fibre Composites The main advantages of natural fibre composite are: 1. Low specific weight, resulting in a higher specific strength and stiffness than glass fibre. 2. It is a renewable source of energy which gives out oxygen using carbon
MIG: uses arc and a consumable wire electrode of a compatible metal into the weld pool. TIG: uses arc and a non-consumable tungsten tip cooled by the inert gas shield Q22: Prepregs? Answer: Fiber reinforcements that are pre-saturated with resins are called prepregs. Aircraft, automotive, and military markets have
Self-healing materials are no more an illusion and we are not far away from the days when manmade materials can restore their structural integrity in case of a failure. For example, the cracks in buildings can close on their own or the scratches on car bodies can recover their original shiny appearance by itself. Indeed, this is what everyone can see in case of the natural healing of wounds and cuts in living species. In the case of structural materials the long-time degradation process leads to
OBJECTIVES AND LAYOUT OF THE THESIS; Objectives In the design of a metal forming process, the only factors that are known are the final product shape and the material with which it is to be made. The fundamental goal of process design in extrusion is to produce industrial parts with high quality, precise dimensions in a most economical way. In this endeavor process optimization is of immense importance. In this thesis Equal Channel Angular Pressing (ECAP) is modeled using finite element method and
1. INTRODUCTION F riction surfacing (FS) is a solid state coating process based on the plastic deformation of a metallic consumable rod. As depicted in a rotating rod is pressed against the substrate under an applied axial load. Frictional heat generates a viscoplastic boundary layer at the rod tip. The pressure and temperature conditions lead to an inter diffusion process resulting in a metallic bond between the plasticized material and the substrate. Heat conduction into the substrate enables this
Material can be grouped into four basic classifications which are metals, ceramics, polymers and composites, each one has different composition, structure, properties and they are used in many applications based on their properties. For example the polymers have become one of the most material that is used in our daily life because of their lightweight, optical properties, some are electric and thermal insulators, beside that they are cheap to make and to process into a final product. These important