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Experimental investigation of material nonlinearity using the Rayleigh surface waves excited and detected by angle beam wedge transducers.
Ultrasonics. 2018 Sep; 89:118-125.U

Abstract

Angle beam wedge transducers are widely used in nonlinear Rayleigh wave experiments as they can generate Rayleigh wave easily and produce high intensity nonlinear waves for detection. When such a transducer is used, the spurious harmonics (source nonlinearity) and wave diffraction may occur and will affect the measurement results, so it is essential to fully understand its acoustic nature. This paper experimentally investigates the nonlinear Rayleigh wave beam fields generated and received by angle beam wedge transducers, in which the theoretical predictions are based on the acoustic model developed previously for angle beam wedge transducers [S. Zhang, et al., Wave Motion, 67, 141-159, (2016)]. The source of the spurious harmonics is fully characterized by scrutinizing the nonlinear Rayleigh wave behavior in various materials with different driving voltages. Furthermore, it is shown that the attenuation coefficients for both fundamental and second harmonic Rayleigh waves can be extracted by comparing the measurements with the predictions when the experiments are conducted at many locations along the propagation path. A technique is developed to evaluate the material nonlinearity by making appropriate corrections for source nonlinearity, diffraction and attenuation. The nonlinear parameters of three aluminum alloy specimens - Al 2024, Al 6061 and Al 7075 - are measured, and the results indicate that the measurement results can be significantly improved using the proposed method.

Authors+Show Affiliations

School of Traffic and Transportation Engineering, Central South University, Changsha, Hunan 410075, China.School of Traffic and Transportation Engineering, Central South University, Changsha, Hunan 410075, China. Electronic address: lixb_ex@163.com.Department of Mechanical Engineering, Wonkwang University, Iksan, Jeonbuk 54538, Republic of Korea.College of Automotive and Mechanical Engineering, Changsha University of Science and Technology, Changsha, Hunan 410114, China.

Pub Type(s)

Journal Article

Language

eng

PubMed ID

29778060

Citation

Zhang, Shuzeng, et al. "Experimental Investigation of Material Nonlinearity Using the Rayleigh Surface Waves Excited and Detected By Angle Beam Wedge Transducers." Ultrasonics, vol. 89, 2018, pp. 118-125.
Zhang S, Li X, Jeong H, et al. Experimental investigation of material nonlinearity using the Rayleigh surface waves excited and detected by angle beam wedge transducers. Ultrasonics. 2018;89:118-125.
Zhang, S., Li, X., Jeong, H., & Hu, H. (2018). Experimental investigation of material nonlinearity using the Rayleigh surface waves excited and detected by angle beam wedge transducers. Ultrasonics, 89, 118-125. https://doi.org/10.1016/j.ultras.2018.05.004
Zhang S, et al. Experimental Investigation of Material Nonlinearity Using the Rayleigh Surface Waves Excited and Detected By Angle Beam Wedge Transducers. Ultrasonics. 2018;89:118-125. PubMed PMID: 29778060.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Experimental investigation of material nonlinearity using the Rayleigh surface waves excited and detected by angle beam wedge transducers. AU - Zhang,Shuzeng, AU - Li,Xiongbing, AU - Jeong,Hyunjo, AU - Hu,Hongwei, Y1 - 2018/05/12/ PY - 2017/12/03/received PY - 2018/05/11/revised PY - 2018/05/11/accepted PY - 2018/5/20/pubmed PY - 2018/5/20/medline PY - 2018/5/20/entrez KW - Angle beam wedge transducer KW - Diffraction and attenuation corrections KW - Nonlinear Rayleigh wave KW - Nonlinear parameter KW - Source nonlinearity SP - 118 EP - 125 JF - Ultrasonics JO - Ultrasonics VL - 89 N2 - Angle beam wedge transducers are widely used in nonlinear Rayleigh wave experiments as they can generate Rayleigh wave easily and produce high intensity nonlinear waves for detection. When such a transducer is used, the spurious harmonics (source nonlinearity) and wave diffraction may occur and will affect the measurement results, so it is essential to fully understand its acoustic nature. This paper experimentally investigates the nonlinear Rayleigh wave beam fields generated and received by angle beam wedge transducers, in which the theoretical predictions are based on the acoustic model developed previously for angle beam wedge transducers [S. Zhang, et al., Wave Motion, 67, 141-159, (2016)]. The source of the spurious harmonics is fully characterized by scrutinizing the nonlinear Rayleigh wave behavior in various materials with different driving voltages. Furthermore, it is shown that the attenuation coefficients for both fundamental and second harmonic Rayleigh waves can be extracted by comparing the measurements with the predictions when the experiments are conducted at many locations along the propagation path. A technique is developed to evaluate the material nonlinearity by making appropriate corrections for source nonlinearity, diffraction and attenuation. The nonlinear parameters of three aluminum alloy specimens - Al 2024, Al 6061 and Al 7075 - are measured, and the results indicate that the measurement results can be significantly improved using the proposed method. SN - 1874-9968 UR - https://www.unboundmedicine.com/medline/citation/29778060/Experimental_investigation_of_material_nonlinearity_using_the_Rayleigh_surface_waves_excited_and_detected_by_angle_beam_wedge_transducers_ L2 - https://linkinghub.elsevier.com/retrieve/pii/S0041-624X(17)31007-7 DB - PRIME DP - Unbound Medicine ER -
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