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693 views Technical Discussions tlh tlh 01:29 Feb-22-2000 Temperature & Rayleigh Waves Hi, quick question: using my private acoustics library (not a bad one), I tried to find out how the velocity of a Rayleigh wave in steel depends on the temperature of the material. In general, I found a SQRT-relationship with temperature for waves propagating in liquids, but no rules for Rayleigh waves and other waves in solids. Any link or reference would be of great help. Thanks. tlh         Reply  Translate  Close   Edouard G. Nesvijski R & D, Senior Scientist TRS Technologies, USA, Joined Jan 2000, 9 Edouard G. Nesvijski R & D, Senior Scientist TRS Technologies, USA, Joined Jan 2000 9 07:13 Feb-23-2000 Re: Temperature & Rayleigh Waves of temperature effect on Rayleigh type waves: make some experimental estimation of temperature effect on longitudinal and shear waves, estimate a temperature effect on Poisson ratio for a given metal, and calculate the Rayleigh equation taking the result of temperature effect on Poisson ratio. Of course, it is necessary to compare these calculations with experimental data. But I would like to notice that this is not purely Rayleigh wave problem. Probably there are other types of surface waves. If you prove them you can call them "tlh waves". Sincerely, Edouard G. Nesvijski         Reply  Translate  Close   Product Spotlight YXLON Cougar EVO StandYXLON International GmbH Scalable small footprint X-ray inspection systems for assembly and laboratory applications. The ... YXLON Cougar EVO series was designed to provide the "best-in- class" inspection solutions for SMT, semiconductor, and laboratory assembly applications, while maintaining a small system footprint for maximum convenience. With optimized software and hardware, these systems produce higher quality and more consistent results than other electronics inspection systems currently on the market. > 5 Showcases Teletest Focus+ StandTeletest Teletest Focus+ electronics have superior capabilities than rivals on the market. Beyond the usual ... test features, Focus+ has 24 transmit channels and 24 receive channels, with an additional on-board switching capabilities. The instrument's frequency range is 10–300 kHz. > 2 Videos Ultrasonic Squirter/Gantry System StandTecScan Systems TecScan’s NDT Ultrasonic Gantry Systems are industrial Squirter scanners designed for non-destru ... ctive quality testing and raster scanning of large structures and parts. The Gantry Systems are usually composed of an Industrial Mechanical Scanner and a Control Room with System Workstation. > 5 Showcases4 Videos High-end Ultrasonic Flaw Detector with 32:128PR PAUT and 2-ch TOFD: SyncScan 2 StandSIUI (Shantou Institute of Ultrasonic Instruments Co.,Ltd) SIUI’s newly launched SyncScan 2, is a high-end ultrasonic flaw detector with 32:128PR PAUT and ... 2-ch TOFD, which can maximize your efficiency for PA and TOFD. ● Support PA/TOFD/UT ● 32-ch PA is more suitable for inspection on extra-thick wall and high-attenuation material. ● 32-ch PA and 2-ch TOFD work simultaneously. ● Support PR mode for corrosion inspection. > 8 Showcases4 Videos more Showcases Share... Home Exhibition Archive Forum Jobs Members Events Directory NDT A-Z Advertise Privacy Policy Contact About © NDT.net - Where expertise comes together. The Largest Open Access Portal of Nondestructive Testing (NDT)- since 1996 We use technical and analytics cookies to ensure that we will give you the best experience of our website - More Info Accept top this is debug window