Results 21 to 30 of about 13,079 (259)
Nonlinear aspects of ultrasonic heating [PDF]
The Journal of the Acoustical Society of America, 1989 Under appropriate conditions, the absorption of finite amplitude ultrasound is determined largely by source amplitude, field geometry, and the nonlinear properties of the medium and is only weakly dependent upon the small signal absorption coefficient of the material.
E. L. Carstensen +4 more
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Nuclear Engineering and Technology, 2020 Cast austenitic stainless steel (CASS) is used for fabricating different components of the primary reactor coolant system of pressurized water reactors.
Jongbeom Kim +6 more
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Results in Physics, 2018 This paper presents the study of applying the nonlinear ultrasonic wave to evaluate the stress state of metallic materials under steady state. The pre-stress loading method is applied to guarantee components with steady stress.
Hanling Mao +4 more
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In Situ Fatigue Damage Monitoring by Means of Nonlinear Ultrasonic Measurements
Metals, 2023 In the present work, the results of acoustic nonlinear response of ultrasonic wave propagation when monitoring the progress of damage induced by fatigue on notched C45 carbon steel specimens have been reported.
Andrea Saponaro, Riccardo Nobile
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Application of Wavelet and EEMD Joint Denoising in Nonlinear Ultrasonic Testing of Concrete
Advances in Materials Science and Engineering, 2018 The health state of concrete is deteriorating during its service. Nonlinear ultrasonic detection based on the amplitude of the fundamental and the second harmonic is considered to be a powerful tool for the discovery of the microcrack in concrete ...
Zhichao Nie, Kui Wang, Mingjie Zhao
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Creep degradation assessment in 9%Cr heat-resistant steel welded joints using ultrasonic methods
Results in Physics, 2019 The assessment of creep degradation in a 9%Cr heat-resistant steel welded joint has been carried out by means of nonlinear ultrasonic and traditional linear ultrasonic technique.
Xiao Wang +4 more
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An Interface Pressure Detection Method of Cable Silicone Rubber-XLPE Based on Nonlinear Ultrasound
Applied Sciences, 2023 The interface pressure between the cable attachment and the body is crucial for the stable long-term operation of the cable. To solve the issue of interface insulation characteristics’ damage caused by the pressure transducer measurement method, a non ...
Chunhua Fang +7 more
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Evaluation of Ultrasonic Nonlinear Characteristics in Heat-Treated Aluminum Alloy (Al-Mg-Si-Cu)
Advances in Materials Science and Engineering, 2013 The nonlinear ultrasonic technique has been known to be more sensitive to minute variation of elastic properties in material than the conventional linear ultrasonic method.
JongBeom Kim, Kyung-Young Jhang
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Nondestructive testing method of SiCp particle dispersion in SiCp/AZ91D magnesium matrix composites
Cailiao gongcheng, 2023 SiCp/AZ91D magnesium matrix composites are widely used in the aerospace field, but there is less report on the distribution of SiCp particles in SiCp/AZ91D magnesium matrix composites by ultrasonic testing methods at home and abroad.
HU Ke +4 more
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Large Area Detection of Microstructural Defects with Multi-Mode Ultrasonic Signals
Applied Sciences, 2022 Cyclic loading or other stresses can lead to development of cracks and crack growth in mechanical structures, leading to eventual failure. While ultrasound imaging can be used for non-destructive testing of such structures, conventional ultrasound ...
Taeho Ju, Alp T. Findikoglu
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