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Chaolei Chen, Huaishu Hou, Mingxu Su, Shiwei Zhang, Chaofei Jiao and Zhifan Zhao
To conduct the ultrasonic weld inspection of polyethylene pipes, it is necessary to use low-frequency transducers due to the high sound energy attenuation of polyethylene. However, one of the challenges in this process is that the blind zone of the ultra...
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Natalia Mikhailova, Ivan Smirnov and Bulat Yakupov
In engineering problems associated with acoustic wave propagation in a liquid, cavitation onset could be an adverse phenomenon, or, conversely, a required process. In both cases, knowledge of the ultrasonic parameters that lead to cavitation onset under ...
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Yuanxun Zheng, Shaoqiang Wang, Peng Zhang, Tongxin Xu and Jingbo Zhuo
The development and application of nondestructive testing technology for prestressed reinforced concrete structures in the field of infrastructure construction were summarized in this study via the analysis of relevant literature worldwide. The detection...
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Yunlai Zhou, Longlong He, Fei Yang and Jingmang Xu
Metal sheets have good performance and have been widely used. Different kinds of defects can be generated during the preparation and service of metal plates, which will cause the structural performance of the metal plates to decline, thus requiring struc...
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Erlina Yustanti, Alfian Noviyanto, Laila Chusnul Chotimah, Muhamad Abdur Rais Saputra, Maulana Randa and Maykel Manawan
Electromagnetic waves show rapid development in electronics, telecommunications, and the military. One of the efforts to overcome the effects of electromagnetic interference is by developing microwave-absorbing materials. Barium hexaferrite is the best c...
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Fernando A. N. Silva, João M. P. Q. Delgado, Rosely S. Cavalcanti, António C. Azevedo, Ana S. Guimarães and Antonio G. B. Lima
The work presents the results of an experimental campaign carried out on concrete elements in order to investigate the potential of using artificial neural networks (ANNs) to estimate the compressive strength based on relevant parameters, such as the wat...
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Tomasz Kubacka and Chau Nguyen Dinh
In order to determine the optimal parameters when using an ultrasonic probe to measure cavern geometry when a metal borehole pipe is present, an investigation was firstly carried out on influence of a vertical metal plates with a thickness from 1 mm to 1...
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Fabian Krieg, Jan Kirchhof, Eduardo Pérez, Thomas Schwender, Florian Römer and Ahmad Osman
In ultrasonic non-destructive testing, array and matrix transducers are being employed for applications that require in-field steerability or which benefit from a higher number of insonification angles. Having many transmit channels, on the other hand, i...
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Anurup Guha, Michael Aynardi, Parisa Shokouhi and Cliff J. Lissenden
Generation of low phase velocity nearly non-dispersive propagating guided wave modes in tibial diaphysis using shear actuation.
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Stefano Rossi, Alessandro Ramalli, Fabian Fool and Piero Tortoli
Ultrasound vector Doppler techniques for three-dimensional (3-D) blood velocity measurements are currently limited by low temporal resolution and high computational cost. In this paper, an efficient 3-D high-frame-rate vector Doppler method, which estima...
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