Laminated composite materials definition

The basic nature of composite materials was introduced in Chapter 1. An overall classification scheme was presented, and the mechanical behavior aspects of composite materials that differ from those of conventional materials were described in a qualitative fashion. The book was then restricted to laminated fiber-reinforced composite mafeffals. The basic definitions and how such materials are made were then treated. Finally, the current and potential advantages of composite materials were discussed along with some case histories that clearly reveal how composite materials are used in structures. 

We have defined the composite nonwoven sector broadly to encompass the general composite plastic sector plus mixed and hybrid nonwoven processes, and coated and laminated nonwoven materials. This definition encompasses ... 

This section is devoted to the definition of the vessel dimension as long as the material properties. Typically, the dimension of the prototypes which are mannfactnred in onr Laboratory is a 1 litre bottle of 250 mm long for a 75.3 mm inside diameter. The thickness of the aluminium liner is 1.85 mm and the thickness of each layer of the laminate is 0.27 mm. The stacking sequence of the laminate is the following [+30] + [+50]4 + [90]3. This sequence means the liner is reinforced with 13 layers of composite 2 layers with a 30° angle, 8 layers with a 50° angle and finally 3 layers with a circumferential winding. 

The term composite, as used in this paper, refers to materials having overall properties that are some average of the properties of several distinct components, one of which is contiguous and forms a matrix having a noncoherent interface with the reinforcing elements. Filamentary-reinforced materials, such as fiberglass-epoxy, and aggregates, such as concrete, fall within this definition. Composite laminates are built up from distinct plies of reinforcement in contrast to filament-would composites, which do not exhibit a laminated structure. 

Reinforced plastics (RPs) or composites hold a special place in the design and manufacturing industry because they are quite simply unique materials. During the 1940s, reinforced plastics (or low-pressure laminates, as they were then commonly known) were easy to identify. The basic definition then, as now, is simply that of a plastic reinforced with either a fibrous or nonfibrous material. TSs such as polyester and epoxies and glass fiber dominated the field. 

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