Thermal Dissipation Calculation in Very High Cycle Fatigue

Abstract:

Very high cycle fatigue is often implemented with high test frequency to save time. The thermal dissipation accompanied with the high frequency appears and induces the temperature increment in the speicmen’s surface. The dissipation power is important and closely related with VHCF performance. The infrared camera is used to acquire the temperature distribution and evolution with a lot noisy which bring difficulties for the calculation. In the article, a thermal dissipation power calculation with time and space filtering method is proposed to give out the thermal dissipation. The two stages dissipation phenomenon with large difference is found out in the process of VHCF test.

• Periodical: Key Engineering Materials (Volume 664)
• Pages: 55-61
• DOI: https://doi.org/10.4028/www.scientific.net/KEM.664.55
• Online since: September 2015
• Authors: Zhi Yong Huang, Chong Wang*, Qingyuan Wang
• Keywords: C-Mn Steel, Thermal Dissipation, Ultrasonic Fatigue, VHCF

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