Assessment of welded joints by SED approach accounting for misalignments and geometrical imperfections
Among recently introduced fatigue assessment approaches, the ones based on the notch stress intensity factor (N-SIF) concept appear to be very promising, both because of their theoretically soundness and because of the possibility of straightforward computation of parameters believed to govern the f...
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ASME - The American Society of Mechanical Engineers
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ftunivgenova:oai:iris.unige.it:11567/870035 2024-02-11T09:59:14+01:00 Assessment of welded joints by SED approach accounting for misalignments and geometrical imperfections GAIOTTI, MARCO RIZZO, CESARE MARIO Berto F. Gaiotti, Marco Rizzo, CESARE MARIO Berto, F. 2017 STAMPA http://hdl.handle.net/11567/870035 eng eng ASME - The American Society of Mechanical Engineers country:USA info:eu-repo/semantics/altIdentifier/isbn/978-079185778-6 ispartofbook:Proceedings of the ASME 2017 36th International Conference on Ocean, Offshore and Arctic Engineering ASME 2017 36th International Conference on Ocean, Offshore and Arctic Engineering, OMAE2017 firstpage:1 lastpage:7 numberofpages:7 http://hdl.handle.net/11567/870035 info:eu-repo/semantics/altIdentifier/scopus/2-s2.0-85031945055 info:eu-repo/semantics/closedAccess fatigue strain energy density butt joints misalignment weld imperfections info:eu-repo/semantics/conferenceObject 2017 ftunivgenova 2024-01-17T17:52:27Z Among recently introduced fatigue assessment approaches, the ones based on the notch stress intensity factor (N-SIF) concept appear to be very promising, both because of their theoretically soundness and because of the possibility of straightforward computation of parameters believed to govern the fatigue process. Actually, while such approaches can be considered in between stress-based approaches and crack propagation ones, quantities like N-SIF and strain energy density in a control volume can be evaluated by finite element analysis according to nowadays well-established procedures, mostly already implemented in commercial FEM software. The present study moves from a former one, dealing with butt joints between typical shipbuilding shell plates, and aims at assessing how the misalignment influences the fatigue strength estimation when applying the strain energy density approach. Eventually, the capabilities of such approach in accounting for misalignments is demonstrated and results are found in agreement with magnification factors currently recommended by guidelines and rules when applying other, stress based, fatigue assessment approaches. Conference Object Arctic Università degli Studi di Genova: CINECA IRIS |
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Open Polar |
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Università degli Studi di Genova: CINECA IRIS |
op_collection_id |
ftunivgenova |
language |
English |
topic |
fatigue strain energy density butt joints misalignment weld imperfections |
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fatigue strain energy density butt joints misalignment weld imperfections GAIOTTI, MARCO RIZZO, CESARE MARIO Berto F. Assessment of welded joints by SED approach accounting for misalignments and geometrical imperfections |
topic_facet |
fatigue strain energy density butt joints misalignment weld imperfections |
description |
Among recently introduced fatigue assessment approaches, the ones based on the notch stress intensity factor (N-SIF) concept appear to be very promising, both because of their theoretically soundness and because of the possibility of straightforward computation of parameters believed to govern the fatigue process. Actually, while such approaches can be considered in between stress-based approaches and crack propagation ones, quantities like N-SIF and strain energy density in a control volume can be evaluated by finite element analysis according to nowadays well-established procedures, mostly already implemented in commercial FEM software. The present study moves from a former one, dealing with butt joints between typical shipbuilding shell plates, and aims at assessing how the misalignment influences the fatigue strength estimation when applying the strain energy density approach. Eventually, the capabilities of such approach in accounting for misalignments is demonstrated and results are found in agreement with magnification factors currently recommended by guidelines and rules when applying other, stress based, fatigue assessment approaches. |
author2 |
Gaiotti, Marco Rizzo, CESARE MARIO Berto, F. |
format |
Conference Object |
author |
GAIOTTI, MARCO RIZZO, CESARE MARIO Berto F. |
author_facet |
GAIOTTI, MARCO RIZZO, CESARE MARIO Berto F. |
author_sort |
GAIOTTI, MARCO |
title |
Assessment of welded joints by SED approach accounting for misalignments and geometrical imperfections |
title_short |
Assessment of welded joints by SED approach accounting for misalignments and geometrical imperfections |
title_full |
Assessment of welded joints by SED approach accounting for misalignments and geometrical imperfections |
title_fullStr |
Assessment of welded joints by SED approach accounting for misalignments and geometrical imperfections |
title_full_unstemmed |
Assessment of welded joints by SED approach accounting for misalignments and geometrical imperfections |
title_sort |
assessment of welded joints by sed approach accounting for misalignments and geometrical imperfections |
publisher |
ASME - The American Society of Mechanical Engineers |
publishDate |
2017 |
url |
http://hdl.handle.net/11567/870035 |
genre |
Arctic |
genre_facet |
Arctic |
op_relation |
info:eu-repo/semantics/altIdentifier/isbn/978-079185778-6 ispartofbook:Proceedings of the ASME 2017 36th International Conference on Ocean, Offshore and Arctic Engineering ASME 2017 36th International Conference on Ocean, Offshore and Arctic Engineering, OMAE2017 firstpage:1 lastpage:7 numberofpages:7 http://hdl.handle.net/11567/870035 info:eu-repo/semantics/altIdentifier/scopus/2-s2.0-85031945055 |
op_rights |
info:eu-repo/semantics/closedAccess |
_version_ |
1790595195887157248 |