AIRTEC2011 expert on aviation composite materials
Composite material for civil aircraft for weight loss and save fuel for decades, but the aircraft manufacturer only recently began to be used for the main force bearing structure. The Boeing 787 is the first in the main structures, particularly in the wing and fuselage on the extensive use of composite materials in the civil transport.poly bags Although recently the United States Government Accountability Office report height pays close attention to its maintainability, but has been on this material in its service period of the performance of a large number of researches on.
More importantly, in spite of composite material for civil transport main load-carrying structure is fairly new, but this practice in military transport aircraft with a long history. Two distinct in military aircraft and early civil aircraft applications proportion than the current civil aircraft.
Cytec Corporation Engineering Department Vice President Chris Pederson said:" composite material for civil aircraft fuselage and wings of the main load-bearing structure, can meet the higher requirements." He said:" the structure of the high productivity and the key to the quality of high demand. Also the need for materials and structures of processing technology for continuous improvement to reduce the cost and meet the requirement of productivity."Gaosuibuyou Thailand
Pederson says, Cytec company the Department of engineering materials supply 787 bulk materials. The company's carbon fiber prepreg, infiltration resin, adhesive and surface materials for 787 wing and fuselage main load-bearing structure, it also for aircraft wing rib, flaps,plastic bags supplier engine cowling and interior provide prepregs, adhesive and surface materials. Cytec epoxy, phenolic, BMI and the thermoplastic technology has on the plane comprehensive application.
Pederson in Frankfurt and AIRTEC2011 conference held together wing supply published a speech on the theme, most parts are hand-made, simple structural design, rarely used in automated manufacturing.
" At that time, composite materials for secondary structures, such as flaps, elevators, rudder and engine cowling. These structures are not flight key structure. The composite material is mainly composed of Fang Lun, standard modulus carbon or glass fiber reinforced not toughening epoxy sandwich structure. Early resins do not provide enough damage tolerance so that it can be used for civil aircraft main structures, such as the wing and fuselage."
Later, industry focus on the development of high performance materials and more automated manufacturing process. In the civil aircraft main structures, the initial application is 1980 time metaphase its use for A310, A330 and A320 tail fin. The mid 1990's for the Boeing 777 tail and floor beam. The composite material used to resist fatigue, corrosion, lightweight wing and fuselage main load-carrying structure laid the foundation.
Pederson said:" at present, our work focuses on composite material and its application on industrialization, more use of automated manufacturing process, and to develop more functional materials."
" For example, composite main benefit is higher mechanical properties and weight loss. As a result of these materials have to be tailored, so it has the possibility of realizing other functions, such as lightning."toner The multifunctional materials to eliminate redundant material, weight loss and cost reduction potential.
The next generation of aerospace composite material is what? Pederson said, the current focus on the development of materials and manufacturing technologies, including carbon fiber, fabric, a new advanced manufacturing technology, nanotechnology, self-healing materials and structural health monitoring.