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Wave Scattering and Attenuation in Polymer-Based Composites: Analysis and Measurements
Abstract Polymer-based composite materials are widely used in application, including various particulate and fibrous composites. In this regard, evaluation of their dynamical properties as well as monitoring of their manufacturing processes become highly important. Ultrasonic waves offer useful means to this purpose [1]. Especially, the velocity measurements have long been practiced to assess elastic properties of composites. In addition, there has been growing interest in complementing the evaluation with the attenuation measurements of ultrasound. There is certain advantage in utilizing the attenuation for material characterization in that the changes in material properties appear more sensitively in the attenuation than in the velocity. Attenuation properties have been explored for polymer-based composites to monitor their processing, and to evaluate their deterioration due to mechanical/thermal loading as well as moisture absorption [2–4]. In order to enhance nondestructive characterization and smart monitoring of polymer-based composites by ultrasonic attenuation, however, it is important to understand the propagation of ultrasound in these composites and to interpret the measured attenuation qualitatively as well as quantitatively.
Wave Scattering and Attenuation in Polymer-Based Composites: Analysis and Measurements
Abstract Polymer-based composite materials are widely used in application, including various particulate and fibrous composites. In this regard, evaluation of their dynamical properties as well as monitoring of their manufacturing processes become highly important. Ultrasonic waves offer useful means to this purpose [1]. Especially, the velocity measurements have long been practiced to assess elastic properties of composites. In addition, there has been growing interest in complementing the evaluation with the attenuation measurements of ultrasound. There is certain advantage in utilizing the attenuation for material characterization in that the changes in material properties appear more sensitively in the attenuation than in the velocity. Attenuation properties have been explored for polymer-based composites to monitor their processing, and to evaluate their deterioration due to mechanical/thermal loading as well as moisture absorption [2–4]. In order to enhance nondestructive characterization and smart monitoring of polymer-based composites by ultrasonic attenuation, however, it is important to understand the propagation of ultrasound in these composites and to interpret the measured attenuation qualitatively as well as quantitatively.
Wave Scattering and Attenuation in Polymer-Based Composites: Analysis and Measurements
Biwa, S. (author) / Watanabe, Y. (author) / Idekoba, S. (author) / Ohno, N. (author)
2003-01-01
10 pages
Article/Chapter (Book)
Electronic Resource
English
Attenuation Coefficient , Fiber Volume Fraction , Epoxy Composite , Ultrasonic Attenuation , Differential Scheme Engineering , Mechanical Engineering , Materials Science, general , Artificial Intelligence (incl. Robotics) , Civil Engineering , Appl.Mathematics/Computational Methods of Engineering , Mechanics
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