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    • 4. 发明授权
    • Pin reinforced, crack resistant fiber reinforced composite article
    • 针加强,抗裂纤维增强复合制品
    • US07008689B2
    • 2006-03-07
    • US09908101
    • 2001-07-18
    • James Thomas HawkinsGerald Alexander Pauley
    • James Thomas HawkinsGerald Alexander Pauley
    • D04H1/00
    • F01D5/282B32B3/08B32B5/28F05D2300/614F05D2300/702Y02T50/672Y10T428/24942Y10T428/249924Y10T428/24994
    • A composite article, for example a blading member of a gas turbine engine, comprising a plurality of stacked layers of in-plane reinforcing fibers bonded together with a matrix resin is provided with enhanced resistance to impact cracking, material loss and/or delamination through use of a plurality of spaced apart reinforcing pins disposed into the article at an angle to the stacked layers, in one form disposed in a selected article region generally to resist strain energy generated during operation of the region. In another form, enhanced resistance is provided through the combination of a matrix resin including properties comprising a tensile strain property of at least 5% and a K1c toughness of at least about 850 psi·inch1/2, and a plurality of spaced apart reinforcing pins disposed into the article at an angle to the stacked layers. A method for making such a composite article with such resin comprises stacking the layers of in-plane reinforcing fibers into a shape and then inserting the reinforcing pins shape. The shape is cured with a matrix resin about the in-plane fibers of the stacked layers and about the reinforcing pins.
    • 一种复合制品,例如燃气轮机发动机的叶片构件,其包括与矩阵树脂结合在一起的多个层叠的平面内增强纤维,其具有增强的耐冲击破裂,材料损失和/或通过使用的分层的能力 多个间隔开的加强销,以与堆叠层成一定角度设置在制品中的一种形式,以一种形式设置在选定的制品区域中,以抵抗在该区域的操作期间产生的应变能。 在另一种形式中,通过基质树脂的组合提供了增强的阻力,所述基质树脂包括包括至少5%的拉伸应变特性和至少约850psi / 以及与堆叠层成角度地设置在制品中的多个间隔开的加强销。 制造这种具有这种树脂的复合制品的方法包括将面内增强纤维的层叠成形状,然后插入加强销的形状。 该形状用基体树脂围绕堆叠层的平面内纤维和围绕加强销固化。