Drilling Damage in Composite Material.
Drilling Damage in Composite Material.
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DOI：
10.3390/ma7053802
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发表时间：
2014-05-14
期刊：
影响因子：
--
通讯作者：
Andrade ONG
中科院分区：
文献类型：
--
作者：
Durão LMP;Tavares JMRS;de Albuquerque VHC;Marques JFS;Andrade ONG
碳纤维增强层压板的特性已将其应用范围从航空航天扩大到家用电器，并且几乎每天都有新的使用可能性出现。在许多可能的应用中，层压板需要钻孔用于组装目的。众所周知，降低钻头推力的钻井过程可以降低分层的风险。在这项工作中，基于射线图像提取数据的损伤评估方法与力学测试结果-承载测试和分层开始测试-以及分析模型进行了比较和关联。结果表明，选择适当的钻孔工具和加工参数对于延长这些层压板的寿命周期具有重要意义，从而提高了可靠性。
The characteristics of carbon fibre reinforced laminates have widened their use from aerospace to domestic appliances, and new possibilities for their usage emerge almost daily. In many of the possible applications, the laminates need to be drilled for assembly purposes. It is known that a drilling process that reduces the drill thrust force can decrease the risk of delamination. In this work, damage assessment methods based on data extracted from radiographic images are compared and correlated with mechanical test results—bearing test and delamination onset test—and analytical models. The results demonstrate the importance of an adequate selection of drilling tools and machining parameters to extend the life cycle of these laminates as a consequence of enhanced reliability.