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Evaluation of approaches for determining design allowables for bolted joints in laminated composites

机译:确定层压复合材料中螺栓连接的设计允许量的方法的评估

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摘要

A procedure to determine design allowables for bolted joints in laminated composites is discussed in this paper. Approaches to acquire B-basis design allowables from extensive test information at the lamina/laminate level and the results of bolted joint tests with a small sample size were investigated and evaluated. Pin bearing and notched specimen tests and finite element analysis were conducted. The results indicate that these approaches are practical and cost-effective ways for determining the allowables. Further research, particularly with respect to the prediction accuracy, needs to be carried out to obtain a completely satisfactory result.
机译:本文讨论了确定层压复合材料中螺栓连接的设计允许量的方法。研究和评估了从薄板/层压板级别的大量测试信息以及螺栓连接试验的小样本量中获取B基设计允许量的方法。进行了销轴承和带缺口试样的测试以及有限元分析。结果表明,这些方法是确定允许量的实用且经济高效的方法。需要进行进一步的研究,尤其是在预测精度方面,以获得完全令人满意的结果。

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