A one-dimensional model for variations of longitudinal wave velocity under different thermal conditions
<span style="font-family: 'Times New Roman','serif'; font-size: 12pt; mso-fareast-font-family: 'Times New Roman'; mso-ansi-language: EN-US; mso-fareast-language: EN-US; mso-bidi-language: AR-SA;">Ultrasonic testing is a versatile and important nondestruc...
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| Format: | Article |
| Language: | English |
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Iranian Society of Vibration and Acoustics
2016-01-01
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| Series: | Journal of Theoretical and Applied Vibration and Acoustics |
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| Online Access: | http://tava.isav.ir/article_19717_e504a059c22c21722e4688aacd09095a.pdf |
| _version_ | 1827263828481540096 |
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| author | Ramin Shabani Farhang Honarvar |
| author_facet | Ramin Shabani Farhang Honarvar |
| author_sort | Ramin Shabani |
| collection | DOAJ |
| description | <span style="font-family: 'Times New Roman','serif'; font-size: 12pt; mso-fareast-font-family: 'Times New Roman'; mso-ansi-language: EN-US; mso-fareast-language: EN-US; mso-bidi-language: AR-SA;">Ultrasonic testing is a versatile and important nondestructive testing method. In many industrial applications, ultrasonic testing is carried out at relatively high temperatures. Since the ultrasonic wave velocity is a function of the </span><span style="font-family: 'Times New Roman','serif'; font-size: 12pt; mso-fareast-font-family: 'Times New Roman'; mso-ansi-language: EN-GB; mso-fareast-language: EN-US; mso-bidi-language: AR-SA;" lang="EN-GB">workpiece</span><span style="font-family: 'Times New Roman','serif'; font-size: 12pt; mso-fareast-font-family: 'Times New Roman'; mso-ansi-language: EN-US; mso-fareast-language: EN-US; mso-bidi-language: AR-SA;"> temperature, it is necessary to have a good understanding of how the wave velocity and test piece temperature are related. In this paper, variations</span><span style="font-family: 'Times New Roman','serif'; font-size: 12pt; mso-fareast-font-family: 'Times New Roman'; mso-ansi-language: EN-GB; mso-fareast-language: EN-US; mso-bidi-language: AR-SA;" lang="EN-GB"> of longitudinal wave velocity in the presence of a uniform temperature distribution or a thermal gradient is studied using one-dimensional theoretical and numerical models. The numerical model is based on finite element analysis. A linear temperature gradient is assumed and the length of the workpiece and the temperature of the hot side are considered as varying parameters. The workpiece is made of st37 steel, its length is varied in the range of 0.04-0.08 m and the temperature of the hot side is changed from 400 K to 1000 K. The results of the theoretical model are compared with those obtained from the finite element model (FEM) and very good agreement is observed.</span> |
| first_indexed | 2024-04-24T15:05:11Z |
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| id | doaj.art-8bb13da04ec948428962512119079cbe |
| institution | Directory Open Access Journal |
| issn | 2423-4761 2423-4761 |
| language | English |
| last_indexed | 2025-03-22T03:36:22Z |
| publishDate | 2016-01-01 |
| publisher | Iranian Society of Vibration and Acoustics |
| record_format | Article |
| series | Journal of Theoretical and Applied Vibration and Acoustics |
| spelling | doaj.art-8bb13da04ec948428962512119079cbe2024-04-28T12:11:03ZengIranian Society of Vibration and AcousticsJournal of Theoretical and Applied Vibration and Acoustics2423-47612423-47612016-01-0121799010.22064/tava.2016.1971719717A one-dimensional model for variations of longitudinal wave velocity under different thermal conditionsRamin Shabani0Farhang Honarvar1Faculty of Mechanical Engineering, K. N. Toosi University of Technology, 19991-43344, Tehran, IranFaculty of Mechanical Engineering, K. N. Toosi University of Technology, 19991-43344, Tehran, Iran<span style="font-family: 'Times New Roman','serif'; font-size: 12pt; mso-fareast-font-family: 'Times New Roman'; mso-ansi-language: EN-US; mso-fareast-language: EN-US; mso-bidi-language: AR-SA;">Ultrasonic testing is a versatile and important nondestructive testing method. In many industrial applications, ultrasonic testing is carried out at relatively high temperatures. Since the ultrasonic wave velocity is a function of the </span><span style="font-family: 'Times New Roman','serif'; font-size: 12pt; mso-fareast-font-family: 'Times New Roman'; mso-ansi-language: EN-GB; mso-fareast-language: EN-US; mso-bidi-language: AR-SA;" lang="EN-GB">workpiece</span><span style="font-family: 'Times New Roman','serif'; font-size: 12pt; mso-fareast-font-family: 'Times New Roman'; mso-ansi-language: EN-US; mso-fareast-language: EN-US; mso-bidi-language: AR-SA;"> temperature, it is necessary to have a good understanding of how the wave velocity and test piece temperature are related. In this paper, variations</span><span style="font-family: 'Times New Roman','serif'; font-size: 12pt; mso-fareast-font-family: 'Times New Roman'; mso-ansi-language: EN-GB; mso-fareast-language: EN-US; mso-bidi-language: AR-SA;" lang="EN-GB"> of longitudinal wave velocity in the presence of a uniform temperature distribution or a thermal gradient is studied using one-dimensional theoretical and numerical models. The numerical model is based on finite element analysis. A linear temperature gradient is assumed and the length of the workpiece and the temperature of the hot side are considered as varying parameters. The workpiece is made of st37 steel, its length is varied in the range of 0.04-0.08 m and the temperature of the hot side is changed from 400 K to 1000 K. The results of the theoretical model are compared with those obtained from the finite element model (FEM) and very good agreement is observed.</span>http://tava.isav.ir/article_19717_e504a059c22c21722e4688aacd09095a.pdfLongitudinal ultrasonic waveThermal gradientTheoretical methodfinite element method |
| spellingShingle | Ramin Shabani Farhang Honarvar A one-dimensional model for variations of longitudinal wave velocity under different thermal conditions Journal of Theoretical and Applied Vibration and Acoustics Longitudinal ultrasonic wave Thermal gradient Theoretical method finite element method |
| title | A one-dimensional model for variations of longitudinal wave velocity under different thermal conditions |
| title_full | A one-dimensional model for variations of longitudinal wave velocity under different thermal conditions |
| title_fullStr | A one-dimensional model for variations of longitudinal wave velocity under different thermal conditions |
| title_full_unstemmed | A one-dimensional model for variations of longitudinal wave velocity under different thermal conditions |
| title_short | A one-dimensional model for variations of longitudinal wave velocity under different thermal conditions |
| title_sort | one dimensional model for variations of longitudinal wave velocity under different thermal conditions |
| topic | Longitudinal ultrasonic wave Thermal gradient Theoretical method finite element method |
| url | http://tava.isav.ir/article_19717_e504a059c22c21722e4688aacd09095a.pdf |
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