{"title":"PVDF薄板兰姆波的实验研究","authors":"X. Bao, V. Varadan, V. K. Varadan, R.H. Tancrell","doi":"10.1109/ULTSYM.1988.49392","DOIUrl":null,"url":null,"abstract":"The propagation characteristics of the fundamental symmetric Lamb waves in a thick (0.5-mm) voided PVDF (polyvinylidene chloride) sheet wave studied experimentally. Broad-bandwidth Lamb waves were generated and received by interdigital transducers. By using the FFT (fast Fourier transform) technique, the phase velocity and attenuation of the Lamb waves along the 1-axis (stretch direction) and 2-axis were measured as a function of frequency. The results show that the attenuation in the measuring range are approximately proportional to 1.33 power of frequency. The velocities of the waves along both axes increase with frequency. From the measured data, two complex planar stiffness constants of PVDF were calculated.<<ETX>>","PeriodicalId":263198,"journal":{"name":"IEEE 1988 Ultrasonics Symposium Proceedings.","volume":"32 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"1988-10-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"3","resultStr":"{\"title\":\"An experimental investigation of Lamb waves in a PVDF sheet\",\"authors\":\"X. Bao, V. Varadan, V. K. Varadan, R.H. Tancrell\",\"doi\":\"10.1109/ULTSYM.1988.49392\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"The propagation characteristics of the fundamental symmetric Lamb waves in a thick (0.5-mm) voided PVDF (polyvinylidene chloride) sheet wave studied experimentally. Broad-bandwidth Lamb waves were generated and received by interdigital transducers. By using the FFT (fast Fourier transform) technique, the phase velocity and attenuation of the Lamb waves along the 1-axis (stretch direction) and 2-axis were measured as a function of frequency. The results show that the attenuation in the measuring range are approximately proportional to 1.33 power of frequency. The velocities of the waves along both axes increase with frequency. From the measured data, two complex planar stiffness constants of PVDF were calculated.<<ETX>>\",\"PeriodicalId\":263198,\"journal\":{\"name\":\"IEEE 1988 Ultrasonics Symposium Proceedings.\",\"volume\":\"32 1\",\"pages\":\"0\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"1988-10-02\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"3\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"IEEE 1988 Ultrasonics Symposium Proceedings.\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.1109/ULTSYM.1988.49392\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"IEEE 1988 Ultrasonics Symposium Proceedings.","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/ULTSYM.1988.49392","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
An experimental investigation of Lamb waves in a PVDF sheet
The propagation characteristics of the fundamental symmetric Lamb waves in a thick (0.5-mm) voided PVDF (polyvinylidene chloride) sheet wave studied experimentally. Broad-bandwidth Lamb waves were generated and received by interdigital transducers. By using the FFT (fast Fourier transform) technique, the phase velocity and attenuation of the Lamb waves along the 1-axis (stretch direction) and 2-axis were measured as a function of frequency. The results show that the attenuation in the measuring range are approximately proportional to 1.33 power of frequency. The velocities of the waves along both axes increase with frequency. From the measured data, two complex planar stiffness constants of PVDF were calculated.<>
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