A fiber reinforced plastic spring which enables prevention of breakage caused by compressive stress is provided. The FRP spring 1 has a laminated structure (reference numeral 20 in case of three-layer structure, reference numeral 30 in case of five-layer structure) having plural fibers which are different from each other in tensile modulus of elasticity and are laminated. An upper surface of the FRP spring 1 is a surface to which pulsating bending load is applied. An upper side region of each laminated structure 20 and 30, which is upper with respect to the neutral axis S, is a compressive stress region at which compressive stress is generated. A lower side region of each laminated structure 20 and 30, which is lower with respect to the neutral axis S, is a tensile stress region at which tensile stress is generated. Distribution of tensile modulus of elasticity of each laminated structure 20 and 30 is asymmetric with respect to the neutral axis S. In this case, it is desirable that a tensile modulus of elasticity of each layer 23 and 35 which is the surface layer portion of compressive stress generation region be the lowest, and a tensile modulus of elasticity of each layer 21 and 31 which is the surface layer portion of tensile stress generation region be lower than that of each layer 22 and 33 which is the neutral axis portion.
FIBER-REINFORCED PLASTIC SPRING
FASERVERSTÄRKTE KUNSTSTOFFFEDER
RESSORT EN PLASTIQUE RENFORCÉ PAR DES FIBRES
2017-05-24
Patent
Electronic Resource
English
IPC: | F16F SPRINGS , Federn / B32B LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM , Schichtkörper, d.h. aus Ebenen oder gewölbten Schichten, z.B. mit zell- oder wabenförmiger Form, aufgebaute Erzeugnisse / B60G VEHICLE SUSPENSION ARRANGEMENTS , Radaufhängungen und Federungen für Fahrzeuge |
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