Abstract
Based on model tests and nonlinear finite element analyses, this paper proposes an advanced analytical method (AM) of ultimate strength of intact and damaged ship hulls, which is design-oriented and coupled with an elastic–plastic method (EPM; which is a combination of elastic large deflection analysis and rigid plastic analysis) of ultimate buckling strength of stiffened panels. As a special example of the advanced analytical method, analytical formulation of ultimate strength of intact ship hulls under vertical bending is derived. The EPM is improved in this paper by adding the work done by lateral pressure into the energy function and modifying the treatment of initial imperfections. Then, the advanced analytical method is verified by model tests and nonlinear finite element analyses and used to analyze the ultimate strength of damaged ship hulls.
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