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    Title: Evaluation on crashworthiness and energy absorption of composite light airplane
    Authors: Pu-Woei Chen;Ya-Yun Lin
    Keywords: Composites;crashworthiness;light aircraft;impact;energy absorption;finite element method
    Date: 2018-08-18
    Issue Date: 2018-09-27 12:11:00 (UTC+8)
    Abstract: The main aim of this study was to explore the safety differences when using aluminum alloy and three different fiber reinforced composites as material for the cockpit and fuselage of light aircraft under crash landing. In accordance with the cockpit reduction amount stipulated by MIL-STD-1290A in which the reducing rates in all directions cannot exceed 15%, this study established the safety zones of impact speeds and impact angles. The overall safety zones of the carbon fiber reinforced composites and glass fiber reinforced composites cockpits were higher than that of the aluminum alloy cockpit by 38.56% and 32.12%, respectively. Among the four different fuselage materials, when carbon fiber reinforced composites was used as the cockpit material, except that the reducing rate for the crashing in the Y direction was slightly higher than the aluminum alloy cockpit, the reducing rate in the X direction and the inclined beam A direction during crashes were less than other materials, and the safety of its overall cockpit was also the most superior to other materials. The energy absorption capability of the aluminum alloy fuselage was better than the fuselages of all composite materials.
    Relation: Advances in Mechanical Engineering 10(8), p.1-12
    DOI: 10.1177/1687814018794080
    Appears in Collections:[Graduate Institute & Department of Aerospace Engineering] Journal Article

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