Frictional behaviour of non-crimp fabrics (NCFs) in contact with a forming tool
Frictional behaviour of non-crimp fabrics (NCFs) in contact with a forming tool
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DOI：
10.1016/j.triboint.2018.01.026
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发表时间：
2018-05-01
影响因子：
6.2
通讯作者：
Long, Andrew C.
中科院分区：
文献类型：
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作者：
Avgoulas, Evangelos I.;Mulvihill, Daniel M.;Long, Andrew C.
显微观察和分析用于检查接触条件在确定无卷曲织物（nfc）的摩擦行为中所起的作用。真实的纤维接触长度是在正常压力范围内测量的。对于所考虑的NCF，在240 kPa压力下，接触长度比相应的单向拖曳工具接触短67%。接触行为的差异与织物结构有关，特别是缝合线和织物之间的间隙。这些微观观察结果用于使用恒定界面剪切强度模型来预测摩擦。一旦考虑到滑橇工具的粗糙度，这些预测结果与使用滑橇装置进行的宏观摩擦测量结果相比较。
Microscopic observation and analysis are used to examine the role that contact conditions play in determining the frictional behaviour of non-crimp fabrics (NCFs). The true fibre contact length is measured over a range of normal pressures. For the NCF considered, the contact length is 67% lower than for a corresponding unidirectional tow on -tool contact at a pressure of 240 kPa. The difference in contact behaviour is associated with the fabric architecture, specifically stitching and gaps between tows. These microscopic observations are used to predict friction using a constant interface shear strength model. These predictions are found to compare well with macroscopic friction measurements taken using a sliding sled arrangement, once the roughness of the sled tool is taken into account.