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Analysis of Dominant Frequencies of Glass Fiber/Aluminum Laminates During Acoustic Emission Measurement

机译:声排放测量期间玻璃纤维/铝层压板主导频率分析

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Dominant frequency characteristics of acoustic emission (AE) from single-edge-notched (SEN) glass fiber aluminum laminates (GFAL) under tensile loads were analyzed in relation to fracture mechanisms. The first and second peak frequencies expressed the characteristic changes of fracture processes in SEN-GFAL specimens such as macro-crack propagation and/or delamination between aluminum and fiber layers. On the basis of the above frequency analysis and of the fracture observation with ultrasonic through-scan and various microscopes, characteristic models for crack propagation of SEN-GFAL was proposed according to various orientations of fiber layer.
机译:在裂缝机制上分析了来自单边缘缺口(SEN)玻璃纤维铝层压板(GFAL)的声发射(AE)的主导频率特性。第一和第二峰值频率表达了诸如铝和纤维层之间的宏观裂纹传播和/或分层的裂缝过程中断裂过程的特征变化。基于上述频率分析和用超声通扫扫描和各种显微镜观察,根据纤维层的各种取向提出了用于SEN-GFAL的裂纹繁殖的特征模型。

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