Hybrid CFRP/titanium bolted joints: Performance assessment and application to a spacecraft payload adaptor
Hybrid CFRP/titanium bolted joints: Performance assessment and application to a spacecraft payload adaptor
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DOI：
10.1016/j.compscitech.2009.11.002
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发表时间：
2010-02-01
影响因子：
9.1
通讯作者：
Obst, A.
中科院分区：
文献类型：
--
作者：
Fink, A.;Camanho, P. P.;Obst, A.
本文以航天器有效载荷适配器为例，对碳纤维增强塑料 - 钛混合层压板的力学响应和工业可制造性进行了实验研究。在复合材料层压板的螺栓连接区域内与金属进行局部混合被证明是提高高负荷螺栓连接的机械连接效率的一种有效方法。高强度钛箔通过铺层替换技术局部嵌入复合材料层压板中，从而避免了任何局部层压板增厚，并提供了具有高承载和剪切能力的局部层压板。已经执行了广泛的样本和部件测试程序，以评估不同设计参数和载荷条件的影响。通过制造一个展示了混合技术多种应用的航天器有效载荷适配器，成功证明了混合技术的可加工性、可检查性以及与标准工业纤维铺放工艺的兼容性。（C）2009爱思唯尔有限公司。保留所有权利。
This paper presents an experimental investigation of the mechanical response and the industrial manufacturability, of CFRP-titanium hybrid laminates using the example of a spacecraft payload adaptor. The local hybridization with metal within a bolted joint region of composite laminates is proven to be an effective method of increasing the mechanical joint efficiency of highly loaded bolted joints. High-strength titanium foils are locally embedded into the composite laminate by means of ply substitution techniques, thus avoiding any local laminate thickening and providing for a local laminate with high bearing and shear capabilities. An extensive sample and component test program has been performed evaluating the impact of different design parameters and load conditions. The verification of the hybrid technique's processability, inspectability and compatibility with a standard industrial fibre placement process has been successfully demonstrated through the manufacturing of a spacecraft payload adaptor featuring diverse applications of the hybridization technique. (C) 2009 Elsevier Ltd. All rights reserved.