The main goal of this study was to develop and to verify a reliable and simple test method for the determination of the fatigue strength of the corners of structural hollow sections. Various alternative specimen geometries and test setups were generated for use of a traditional push-pull fatigue machine. All alternatives were studied using FEA and based on those results, two test specimen geometries were selected for pilot fatigue tests. On the basis of the pilot fatigue tests one test geometry was finally selected. The test method was verified by fatigue tests for two series of cold-formed and for one series of hot-finished structural hollow sections of size 100x100x5.
|Title of host publication||Design and Analysis of Welded High Strength Steel Structures|
|Subtitle of host publication||Papers presented at a meeting organised in conjunction with the 8th International Fatigue Congress FATIGUE 2002. Stockholm, Sweden, 3-7 June 2002|
|Publication status||Published - 2002|
|MoE publication type||B3 Non-refereed article in conference proceedings|
Bäckström, M., Savolainen, M., Ilvonen, R., & Laitinen, R. (2002). A new fatigue test method for corners of structural hollow sections. In Design and Analysis of Welded High Strength Steel Structures: Papers presented at a meeting organised in conjunction with the 8th International Fatigue Congress FATIGUE 2002. Stockholm, Sweden, 3-7 June 2002 (pp. 277-302)