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首页> 外文期刊>International Journal of Automotive Technology >A STUDY ON IMPACT CHARACTERISTICS OF THE STACKING SEQUENCES IN CFRP COMPOSITES SUBJECTED TO FALLINGWEIGHT IMPACT LOADING
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A STUDY ON IMPACT CHARACTERISTICS OF THE STACKING SEQUENCES IN CFRP COMPOSITES SUBJECTED TO FALLINGWEIGHT IMPACT LOADING

机译：跌落冲击载荷作用下CFRP复合材料中堆积序列的冲击特性研究

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摘要

This paper describes a method for a falling weight impact test to estimate the impact energy absorbing characteristics and impact strength of CFRP (Carbon-fiber reinforced plastics) laminate plates based on considerations of stress wave propagation theory, which were converted to measurements of load and displacement verses time. The delamination area of impacted specimens for the different ply orientations was measured with an ultrasonic C-scanner to determine the correlation between impact energy and delamination area. The energy absorbed by a quasi-isotropic specimen having four interfaces was higher than that of orthotropic laminates with two interfaces. The more interfaces, the greater the energy absorbed. The absorbed energy of a hybrid specimen embedding GFRP (Glass-fiber reinforced plastics) layer was higher than that of normal specimens. Also, a falling weight impact tester was built to evaluate the characteristics and impact strength of GFRPs.
机译：本文介绍了一种基于重力波传播理论的落锤冲击试验方法，用于评估CFRP（碳纤维增强塑料）层压板的冲击能量吸收特性和冲击强度，并将其转换为载荷和位移的测量time时间。用超声波C型扫描仪测量了不同层方向的冲击试样的分层面积，以确定冲击能与分层面积之间的相关性。具有四个界面的准各向同性样品吸收的能量高于具有两个界面的正交各向异性层压板的能量。接口越多，吸收的能量越大。嵌入GFRP（玻璃纤维增​​强塑料）层的混合样品的吸收能量高于正常样品。此外，还建立了落锤冲击测试仪来评估GFRP的特性和冲击强度。

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