Ultimate strength of ship hull in benditg and shear using simplified approach

• Autorzy: Taczała M.
• Języki publikacji: EN

Abstrakty

EN

The paper presents a method for analysis of the ship hulls subject to combination of vertical bending and shear force. The method is based on the Smith's concept of decomposition of ship hull into a number of elements: plates and stiffened panels. Stress-strain relationship based on elastic-plastic constitutive equations is evaluated for each element subject to tension/compression and shear separately. Results are combined to produce the ship hull response intenns of bending moment and shear force acting under specified curvatures of two cross-sections. Problem of various schemes of kinematic loading is discussed. The results obtained using the present method are validated against results of tests for Ostapenko beam. Presented are results of calculations for typical configuration of bulk-carrier.

PL

W artykule przedstawiono metodę analizy kadłubów okrętowych poddanych łącznemu działaniu mementu gnących i sił tnących. Metoda polega na wykorzystaniu koncepcji Smitha dekompozycji kadłuba okrętowego na elementy składowe, którymi są płyty i usztywnione panele. Związki pomiędzy naprężeniem i odksztalceniem, oparte są na równaniach konstytutywnych materiału w zakresie sprężysto-plastycznym, wyznaczane są osobno dla każdego elementu poddanego rozciąganiu/ściskaniu i ścinaniu. W ten sposób uzyskuje się odpowiedź kadłuba, moment gnący i siłę tnącą na wymuszenie kinematyczne realizowane jako przyrost krzywizny w dwóch przekrojach. Przedstawiono problem różnych sposóbow obciążenia kinematycznego. Wyniki uzyskane przy zastosowaniu przedstawionej metody porównano z wynikami testu dla belki Ostapenki. Przedstawiono wyniki obliczeń dla typowego zładu poprzecznego masowca.

• Wydawca: Polish Academy of Sciences - Branch in Gdańsk Marine Technology Committee of the Polish Academy of Sciences
• Czasopismo: Marine Technology Transactions. Technika Morska
• Rocznik: 2001
• Tom: Vol. 12
• Strony: 261--283
• Opis fizyczny: Bibliogr. 38 poz., rys.

Twórcy

autor

Taczała M.

• Technical University of Szczecin, Faculty of Maritime Technology 71-065 Szczecin, Al. Piastów 41, Poland

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