COMPOSITE DESIGN METHOD AND COMPOSITE

To improve further a load bearing performance of a reinforcing part that is formed by laminating an additional layer of a composite material layer between the composite material layers extending from a normal part in a composite material having the reinforcing part.SOLUTION: A composite design metho...

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Hauptverfasser: EZAKI KOJI, SUGIYAMA TAKUSHI, HASHIZUME RYOSUKE, SUHARA MASAYOSHI
Format: Patent
Sprache:eng ; jpn
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Zusammenfassung:To improve further a load bearing performance of a reinforcing part that is formed by laminating an additional layer of a composite material layer between the composite material layers extending from a normal part in a composite material having the reinforcing part.SOLUTION: A composite design method includes: a test step (step S2) of applying a load to a composite material and specifying a fracture mode in which a reinforcing part is broken, the fracture mode including a pullout mode and other modes; and a lamination structure changing step (steps S4, S5) to form the composite material in which a number of layers of additional layers and an orientation direction of the reinforcing fibers are changed according to the specified fracture mode. The test step and the lamination structure changing step are repeatedly executed until the fracture mode becomes the pullout mode to optimize a laminated structure of a composite material layer in the reinforcing part.SELECTED DRAWING: Figure 9 【課題】通常部から延びる複合材料層の間に複合材料層の追加層を積層して形成された補強部を有する複合材について、補強部の耐荷重性能をより向上させる。【解決手段】複合材の設計方法は、複合材に荷重を付加して、補強部が、プルアウトモードとプルアウトモード以外のモードとを含む破壊モードのいずれで破壊されるかを特定する試験ステップ(ステップS2)と、特定された破壊モードに応じて追加層の積層数および前記強化繊維の配向方向を変更した前記複合材を形成する積層構成変更ステップ(ステップS4、S5)と、を備え、破壊モードがプルアウトモードとなるまで、試験ステップと積層構成変更ステップとを繰り返し実行して、補強部における複合材料層の積層構成を最適化する。【選択図】図9