AXIAL COMPOSITE MEMBER AND MANUFACTURING METHOD THEREFOR

• Main Authors: KIYOMOTO HIROSHI, TANEDA KAZUHIRO, YAMADA NOBUHIRO
• Format: Patent
• Language: English; Japanese
• Published: 05.09.2016
• Subjects: LAYERED PRODUCTS; LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT ORNON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM; PERFORMING OPERATIONS; PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCESIN A PLASTIC STATE; TRANSPORTING; WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL

PROBLEM TO BE SOLVED: To improve durability by securing desired strength of a bent part.SOLUTION: A bent part of an axial member 10 is formed by laminating 0° layers 16 in which the orientation direction of a carbon fiber is parallel to the axial direction of the axial composite member 10, and ±45° layers 18 in which the orientation direction of the carbon fiber is obliquely intersected with the axial direction of the axial composite member 10, and further a stress relaxation layer 20 is interposed between the 0° layers and the ±45° layers. The stress relaxation layer 20 is set to be lower than bending rigidity of the 0° layer and lower than torsional rigidity of the ±45° layer.SELECTED DRAWING: Figure 3 【課題】曲げ部の所望の強度を確保して耐久性を向上させること。【解決手段】軸状部材１０の曲げ部は、外径側に位置し、炭素繊維の配向方向が軸状複合部材１０の軸方向に対して平行な０°層１６と、内径側に位置し、炭素繊維の配向方向が軸状複合部材１０の軸方向に対して斜交する±４５°層１８とが積層して形成され、さらに、０°層と±４５°層との間には、応力緩和層２０が介装され、応力緩和層２０は、０°層の曲げ剛性よりも低く、且つ、±４５°層の捩り剛性よりも低く設定される。【選択図】図３