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Aircraft Construction
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C Soutis – One of the best experts on this subject based on the ideXlab platform.
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carbon fiber reinforced plastics in Aircraft Construction
Materials Science and Engineering A-structural Materials Properties Microstructure and Processing, 2005Co-Authors: C SoutisAbstract:Abstract Fibrous composites have found applications in Aircraft from the first flight of the Wright Brothers’ Flyer 1, in North Carolina on December 17th, 1903, to the plethora of uses now enjoyed by them on both military and civil Aircraft, in addition to more exotic applications on unmanned aerial vehicles, space launchers, and satellites. Their growing use has arisen from their high specific strength and stiffness, when compared to the more conventional materials, and the ability to shape and tailor their structure to produce more aerodynamically efficient structural configurations. In this paper, it is argued that fiber reinforced polymers, especially carbon fiber reinforced plastics can and will in the future contribute more than 50% of the structural mass of an Aircraft. However, affordability is the key to survival in aerospace manufacturing, whether civil or military, and therefore effort should be devoted to analysis and computational simulation of the manufacturing and assembly process as well as the simulation of the performance of the structure, since they are intimately connected.
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fibre reinforced composites in Aircraft Construction
Progress in Aerospace Sciences, 2005Co-Authors: C SoutisAbstract:Abstract Fibrous composites have found applications in Aircraft from the first flight of the Wright Brothers’ Flyer 1, in North Carolina on December 17, 1903, to the plethora of uses now enjoyed by them on both military and civil Aircrafts, in addition to more exotic applications on unmanned aerial vehicles (UAVs), space launchers and satellites. Their growing use has risen from their high specific strength and stiffness, when compared to the more conventional materials, and the ability to shape and tailor their structure to produce more aerodynamically efficient structural configurations. In this paper, a review of recent advances using composites in modern Aircraft Construction is presented and it is argued that fibre reinforced polymers, especially carbon fibre reinforced plastics (CFRP) can and will in the future contribute more than 50% of the structural mass of an Aircraft. However, affordability is the key to survival in aerospace manufacturing, whether civil or military, and therefore effort should be devoted to analysis and computational simulation of the manufacturing and assembly process as well as the simulation of the performance of the structure, since they are intimately connected.
Jindřich Ploch – One of the best experts on this subject based on the ideXlab platform.
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environmental impact of burning composite materials used in Aircraft Construction on the air
International Journal of Environmental Research and Public Health, 2019Co-Authors: Iveta Vajdova, Edina Jencova, Stanislav Szabo, Lucia Melnikova, Jozef Galanda, Malgorzata Dobrowolska, Jindřich PlochAbstract:The negative impact of air incidents and emergency situations results from the leakage of liquids into the soil and water and the leakage of flue gases and combustion products of Aircraft structural materials into the air during fires. This article deals with air pollution caused by the combustion of composite materials commonly used in general aviation. Samples of composite materials of Aircraft registered in the Czech Republic were selected. These samples of composite materials were tested for flammability, according to ISO 5660-1:2002 Reaction to fire tests—Heat Release, smoke production and mass loss rate (ISO—International Organization for Standardization). Total smoke release and total oxygen consumed were assessed in this study, both of which have a significant impact on air quality in the case of an air incident. Based on the results of the research, differences resulting from the diversity of the structures of the tested composite materials were found. The most hazardous composite material was evaluated from the point of view of its impact on air quality during combustion.
A O Vatulyan – One of the best experts on this subject based on the ideXlab platform.
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inverse problem of non homogeneous residual stress identification in thin plates
International Journal of Solids and Structures, 2013Co-Authors: Rostislav D Nedin, A O VatulyanAbstract:Abstract Vibration of solid bodies with residual stresses has been attracting attention of researchers from different countries for a long time. Problems of residual stress analysis have its applications in fields of building, mechanical engineering, Aircraft Construction, biomechanics, manufacturing of composite and functionally-gradient materials. The most common model of residual stresses (or prestresses) is the homogeneous prestress state model; however, in fact the prestress state is often non-homogeneous under natural conditions. One of the most powerful nondestructive methods of reConstruction of non-homogeneous prestress state is the acoustical method. In the present paper the direct problem formulations for 3D bodies and thin plates with non-homogeneous prestress fields are described. A formulation of the inverse problem on a reConstruction of non-homogeneous prestress state is given on the basis of acoustical method. The problem is reduced to the iterative process; at each step of the latter the direct problem and the integral Fredholm equation of the first kind are solved. Two ways of obtaining operator equations of the inverse problem are presented for two oscillation regimes – in-plane and out-of-plane plate vibration modes. Numerical results of solving the inverse problem on a reConstruction of the uniaxial prestress function in case of out-of-plane vibration for a thin rectangular plate are presented. Features and characteristics of the solutions obtained are revealed; the most auspicious conditions for a better quality of the identification procedure are pointed out.