Fatigue strength of welded tubular t-joints under variable amplitude loading
Fatigue strength of welded tubular t-joints under variable amplitude loading
- Neue Suche nach: Kawahara, M.
- Neue Suche nach: Katoh, A.
- Neue Suche nach: Iwasaki, T.
- Neue Suche nach: Kawahara, M.
- Neue Suche nach: Katoh, A.
- Neue Suche nach: Iwasaki, T.
The paper describes an experimental study on fatigue strength of welded tubular T-joints, performed in small and large scale models fabricated from mild steel tubes. Fatigue tests were conducted under three kinds of loading patterns; constant amplitude loading, block programmed loading and random loading. In block programmed loading tests, the period of load sequence was varied, while the load spectrum being the same. Thus the effects of the difference in load sequences upon fatigue lives were examined independently from the effect of load spectrum. Crack initiation life was hardly affected by the load sequence patterns. However, the crack penetration life or failure life were largely affected by types and periods of load sequences. The limit of validity of Miner's rule are discussed together with possible interpretations on the effects of the difference in load sequence patterns.
Dokumentinformationen
Fatigue strength of welded tubular t-joints under variable amplitude loading
Dauerfestigkeit von geschweissten T-Strecken an Rohren bei verschiedenen Belastungsamplituden
1982
6 Seiten, 9 Bilder, 4 Tabellen, 12 Quellen
Aufsatz (Konferenz)
Englisch
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