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Guided Plate Wave Potential for Damage Analysis of Composite Materials

机译:复合材料损伤分析的导波板势

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摘要

The emergence of plate waves as a functional approach to the evaluation of thin structures, especially composite plates, has been gradual and steady. This statement may be supported by the increasing attention, in the recent publications[1,2], focussed on leaky Lamb waves in composites. The generation and the characteristics of plate wave modes, although using a quasi-local technique, has already been established and the dispersion relationships are being studied in detail, especially for isotropic cases. In practice, the critical drawbacks which have been detrimental in the widespread deployment of these methods are the complicated mode behavior and a lack of complete understanding of the mechanics involved. Thus, to fully exploit the plate waves, it is imperative that the physics of wave propagation within the thin composite structures be fully explored using experimental methods and be backed by a very strong theoretical basis in order to obtain NDE guidelines for fiber reinforced composite materials.
机译:板波作为评估薄结构(尤其是复合板)的一种功能方法的出现已经是逐步而稳定的。在最近的出版物[1,2]中,越来越多的关注集中在复合材料中的泄漏兰姆波上,这一说法可能得到越来越多的关注。尽管已经使用准局部技术,但已经建立了板波模式的产生和特性,并且正在研究色散关系,特别是对于各向同性情况。实际上,在这些方法的广泛部署中有害的关键缺点是复杂的模式行为以及对所涉及的机制缺乏完全的了解。因此,为了充分利用板波,必须使用实验方法充分研究薄复合结构内的波传播物理原理,并以非常强大的理论基础作为后盾,以便获得纤维增强复合材料的NDE准则。

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