Ultrasonic fatigue testing of structural steel welded joints

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Abstract

In order to evaluate fatigue properties within the very high cycle fatigue (>107 cycles) regime in a feasible timeframe, ultrasonic fatigue testing is necessary. This involves exciting specimens at their natural frequency of 20 kHz. As the fatigue performance of welds beyond the conventionally assumed fatigue limit has not been extensively studied, this research aims to investigate the fatigue behaviour of structural steel welds up to the gigacycle (109 cycles) regime. A welded specimen that features the toe and root features that fatigue cracks typically originate from was developed. The design process and fatigue results obtained will be discussed.
Original languageEnglish
Number of pages2
Publication statusPublished - 1 Sept 2023
EventBSSM 17th International Conference on Advances in Experimental Mechanics - Glasgow University Union, University of Glasgow, Glasgow, United Kingdom
Duration: 30 Aug 20231 Sept 2023
https://www.bssm.org/events/conference-2023/17th-international-conference-on-advances-in-experimental-mechanics/

Conference

ConferenceBSSM 17th International Conference on Advances in Experimental Mechanics
Country/TerritoryUnited Kingdom
CityGlasgow
Period30/08/231/09/23
Internet address

Keywords

  • fatigue
  • fatigue testing
  • steel welded joints
  • fatigue performance

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