Failures at attachment holes in brittle matrix laminates
Failures at attachment holes in brittle matrix laminates
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DOI：
10.1177/002199839903301702
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发表时间：
1999-01-01
影响因子：
2.9
通讯作者：
Hutchinson, JW
中科院分区：
文献类型：
--
作者：
Genin, GM;Hutchinson, JW
分析了脆性基体纤维增强交叉铺层复合材料的机械连接。两个模型的问题被认为是：第一，螺栓加载的支柱，第二，无限宽板均匀间距螺栓。确定了支柱可能的失效机制，并评估了螺栓尺寸、螺栓位置、螺栓弹性和界面摩擦对这些失效机制和相关失效载荷的影响。确定了最能利用SiC/MAS交叉铺层通过基体开裂机制重新分布应力的螺栓间距。边界值问题采用有限元法求解。交叉铺层的本构行为由Genin和哈钦森的模型描述[1]。
Mechanical attachments for a brittle-matrix fiber-reinforced cross-ply composite are analyzed. Two model problems are considered: first, a bolt-loaded strut, and second, an infinitely-wide plate with evenly-spaced bolts. The possible failure mechanisms for the strut are identified, and the influence of bolt size, bolt location, bolt elasticity, and interfacial friction on these failure mechanisms and the associated failure loads are evaluated. The bolt spacing for the plate is identified that best takes advantage of a SiC/MAS cross-ply's ability to redistribute stresses through the mechanism of matrix cracking.Boundary value problems are solved using the finite element method. The cross-ply's constitutive behavior is described by the model of Genin and Hutchinson [1].