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Tesi etd-03222018-224811


Thesis type
Tesi di dottorato di ricerca
Author
MARULO, GIUSEPPE
URN
etd-03222018-224811
Title
Fatigue life assessment of welded joints
Settore scientifico disciplinare
ING-IND/14
Corso di studi
INGEGNERIA INDUSTRIALE
Commissione
tutor Prof. Frendo, Francesco
relatore Prof. Bertini, Leonardo
Parole chiave
  • fatigue
  • welding
  • steel
  • multiaxial
  • variable amplitude
Data inizio appello
26/03/2018;
Consultabilità
completa
Riassunto analitico
Fatigue is one of the most common failure mechanisms of structural components.<br>Many fatigue failures have become popular throughout engineering history since<br>the tragic railroad accidents that motivated Wöhler to begin the first<br>investigations of the fatigue damage process. Since then a huge deal of work has<br>been carried out ot the subject by several generations of engineers leading to a<br>deeper comprehension of the complex phenomena related to the damages<br>occurring in structural components due to time varying loads. However, many<br>aspects of the subject remains unclear and several questions are still open for<br>discussion.<br>The present work tries to give an answer to some of those questions. In<br>particular, it is focused on the fatigue life assessment under multiaxial and<br>variable amplitude loads with regard to the application to welded joint<br>connections.<br>Fatigue is a classical topic in engineering design and a subject of wide<br>practical interest since it is one of the most common causes of failure for<br>structural components.
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