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Acoustic emission and damage mode correlation in textile reinforced PPS composites

机译：纺织增强PPS复合材料的声发射与损伤模式相关

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The paper applies the cluster analysis methodology to thermoplastic Polyphenylene sulphide (PPS) carbon woven composites. The experimental quasi-static tensile tests were assisted by: a digital camera for digital image correlation (DIC) evaluation of the full field strain; a digital camera for local damage observation; acoustic emission (AE) sensors for measurement of the acoustic emission features during loading. The experimental data and the subsequent cluster analyses of the AE events show a similar distribution of the AE clusters for the considered thermoplastic carbon composites and other thermoset woven composites described in the literature. The boundaries of those clusters are different for some extent, while a typical damage mechanism, namely transverse cracks inside the yarns, was clearly correlated to the first cluster with lower amplitude and lower frequency acoustic events. (C) 2016 Elsevier Ltd. All rights reserved.
机译：本文将聚类分析方法应用于热塑性聚苯硫醚（PPS）碳编织复合材料。实验准静态拉伸试验的辅助是：用于数码相机对全场应变进行数字图像相关（DIC）评估的数码相机；数码相机，用于观察局部损坏；声发射（AE）传感器，用于在加载过程中测量声发射特征。 AE事件的实验数据和随后的聚类分析表明，对于所考虑的热塑性碳复合材料和文献中描述的其他热固性机织复合材料，AE聚类的分布相似。这些簇的边界在一定程度上有所不同，而典型的破坏机制，即纱线内部的横向裂纹，显然与具有较低振幅和低频声波事件的第一簇相关。 （C）2016 Elsevier Ltd.保留所有权利。

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