Mechanical characterization of CFRP composites by ultrasonic immersion tests: Experimental and numerical approaches
Mechanical characterization of CFRP composites by ultrasonic immersion tests: Experimental and numerical approaches
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DOI：
10.1016/j.compositesb.2014.04.024
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发表时间：
2014-11-01
影响因子：
13.1
通讯作者：
Piccioni, Mario Daniele
中科院分区：
文献类型：
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作者：
Castellano, Anna;Foti, Pilade;Piccioni, Mario Daniele
我们研究了一种通过超声浸没测试来表征各向异性复合材料弹性响应的创新实验方法。特别地，各向异性的类别和弹性模数可以从测量沿适当方向传播的超声波的速度开始确定。为此，我们设计并开发了测角超声试验台，并开发了用于测试管理和采集数据处理的软件。利用该实验装置，我们无损地测定了横观各向同性单向CFRP复合材料的五个弹性模数。实验分析得到了数值模拟的支持，这有助于更深入地了解传播现象，并有助于改进所采取的实验策略。(C)2014爱思唯尔有限公司。保留所有权利。
We study an innovative experimental approach for the characterization of the elastic response of anisotropic composite materials by ultrasonic immersion tests. In particular, the class of anisotropy and the elastic moduli can be determined starting from measurements of the velocities of ultrasonic waves propagating in suitable directions. To this aim, we have designed and developed a goniometric ultrasonic test bench and a software for the management of the test and the processing of the acquired data. By employing this experimental device, we determine in a non-destructive way the five elastic moduli of a transversely isotropic unidirectional CFRP composite. The experimental analyses are supported by numerical simulations, which are useful for a deeper insight of the propagation phenomena and for enhancing the experimental strategies to be adopted. (C) 2014 Elsevier Ltd. All rights reserved.