Das Suchergebnis hat sich seit Ihrer Suchanfrage verƤndert. Eventuell werden Dokumente in anderer Reihenfolge angezeigt.
  • Treffer 40 von 543
ZurĆ¼ck zur Trefferliste

Quantitative Analysis of the Correlation between Geometric Parameters of Pits and Stress Concentration Factors for a Plate Subject to Uniaxial Tensile Stress

  • The offshore environment is inherently corrosive. Consequently, pits may nucleate on exposed steel surfaces. Corrosion pits can be a source of crack initiation when the structure is subject to fatigue loading. The criticality of a corrosion pit with respect to the structural integrity depends on its shape and size and can be quantified using a stress concentration factor (š¾š‘”). In this work, a parametric 3D finite element model is developed to perform stress analysis of a pitted plate subjected to uniaxial tensile stress. The model is used for an extensive parameter study in which š¾š‘” is determined for various pit configurations. It is demonstrated that each one of the geometrical parameters holds a substantial influence on the location of the Most Critical Region (MCR). It is shown that š¾š‘” increases as the pit gets narrower. Pits with an elliptical mouth yield higher š¾š‘” values when the angle between the load direction and the pit mouth major axis increases. Moreover, š¾š‘” increases withThe offshore environment is inherently corrosive. Consequently, pits may nucleate on exposed steel surfaces. Corrosion pits can be a source of crack initiation when the structure is subject to fatigue loading. The criticality of a corrosion pit with respect to the structural integrity depends on its shape and size and can be quantified using a stress concentration factor (š¾š‘”). In this work, a parametric 3D finite element model is developed to perform stress analysis of a pitted plate subjected to uniaxial tensile stress. The model is used for an extensive parameter study in which š¾š‘” is determined for various pit configurations. It is demonstrated that each one of the geometrical parameters holds a substantial influence on the location of the Most Critical Region (MCR). It is shown that š¾š‘” increases as the pit gets narrower. Pits with an elliptical mouth yield higher š¾š‘” values when the angle between the load direction and the pit mouth major axis increases. Moreover, š¾š‘” increases with the increase in the localized thickness loss which is more pronounced for relatively wider pits. Finally, a regression model is presented for estimating š¾š‘” based on the geometric parameters of a pit.ā€¦zeige mehrzeige weniger

Volltext Dateien herunterladen

  • 1-s2.0-S0167844223003440-main.pdf
    eng

Metadaten exportieren

Weitere Dienste

Teilen auf Twitter Suche bei Google Scholar Anzahl der Zugriffe auf dieses Dokument
Metadaten
Autor*innen:F Mehri Sofiani, Somsubhro ChaudhuriORCiD, S.A. Elahi, K. Hectors, W. De Waele
Dokumenttyp:Zeitschriftenartikel
Verƶffentlichungsform:Verlagsliteratur
Sprache:Englisch
Titel des Ć¼bergeordneten Werkes (Englisch):Theoretical and Applied Fracture Mechanics
Jahr der Erstverƶffentlichung:2023
Organisationseinheit der BAM:8 Zerstƶrungsfreie PrĆ¼fung
8 Zerstƶrungsfreie PrĆ¼fung / 8.0 Abteilungsleitung und andere
Verlag:Elsevier Ltd.
Jahrgang/Band:127
Aufsatznummer:104081
Erste Seite:1
Letzte Seite:27
DDC-Klassifikation:Technik, Medizin, angewandte Wissenschaften / Ingenieurwissenschaften / Angewandte Physik
Freie Schlagwƶrter:Corrosion; FEM; Pitting corrosion; SCF
Themenfelder/AktivitƤtsfelder der BAM:Energie
DOI:10.1016/j.tafmec.2023.104081
ISSN:0167-8442
VerfĆ¼gbarkeit des Dokuments:Datei im Netzwerk der BAM verfĆ¼gbar ("Closed Access")
Datum der Freischaltung:13.09.2023
Referierte Publikation:Ja
Datum der Eintragung als referierte Publikation:23.10.2023
Einverstanden
Diese Webseite verwendet technisch erforderliche Session-Cookies. Durch die weitere Nutzung der Webseite stimmen Sie diesem zu. Unsere Datenschutzerklärung finden Sie hier.