Design criteria for scantling of longitudinal and transverse connections in the torsion box under fatigue loading

• Autorzy: Silva-Campillo Arturo , Suárez-Bermejo Juan Carlos , Herreros-Sierra Miguel Ángel

Identyfikatory

DOI

10.2478/pomr-2021-0028

• Języki publikacji: EN

Abstrakty

EN

Fatigue is one of the main failure modes in marine structures, and it is caused by the strong cyclic characteristics of the loads they support. This failure mode is amplified in areas of high stress concentration, such as at the intersection of primary and secondary elements. In this paper, a two-phase study is proposed that compares numerical and experimental results using a digital image correlation technique. The described procedure establishes selection, design, and scantling criteria and provides recommendations for the design of the transverse structure using specimens with different geometries. These geometries correspond to different designs for the transverse primary structure that use a longitudinal secondary stiffener with variable thickness and longitudinal spacing to transverse in a dynamic and quasi-static regime. The stress state for this regime is calculated based on the biaxiality indication concept, which uses the fatigue phenomenon (safety factor and sensitivity curves) and fracture mechanics (parameters of the Paris crack propagation law, correlation value, and law of variation of the stress intensity factor).

Słowa kluczowe

EN

fatigue life; ship structures; crack growth; fracture

• Wydawca: Gdańsk University of Technology, Faculty of Ocean Engineering & Ship Technology
• Czasopismo: Polish Maritime Research
• Rocznik: 2021
• Tom: nr 2
• Strony: 116--127
• Opis fizyczny: Bibliogr. 34 poz., rys., tab.

Twórcy

autor

Silva-Campillo Arturo

• Universidad Politécnica de Madrid Avenida de la Memoria 28040 Madrid Spain

autor

Suárez-Bermejo Juan Carlos

• Universidad Politécnica de Madrid Avenida de la Memoria 28040 Madrid Spain

autor

Herreros-Sierra Miguel Ángel

• Universidad Politécnica de Madrid Avenida de la Memoria 28040 Madrid Spain

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Uwagi

Opracowanie rekordu ze środków MNiSW, umowa Nr 461252 w ramach programu "Społeczna odpowiedzialność nauki" - moduł: Popularyzacja nauki i promocja sportu (2021).