Design philosophy of marine structures

Caldwell, J B; Kavlie, D.; Marshall, Peter; Nitta, A.; Østergaard, Claus Møller; Pittaluga, S.; Spuyman, W; Denis, Mathieu; Steneroth, E.; Planeix, J M

doi:10.3233/isp-1983-3034601

Cited by 2 publications

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A Method for Reliability-Based Sensitivity Analysis of Ship’s Hull Structures Using Combined Plate and Frame Structure Models

Okada

Masaoka

Murotsu

et al. 1999

Journal of Offshore Mechanics and Arctic Engineering

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This paper is concerned with reliability-based sensitivity analysis of ship’s hull structures, which are modeled by using combined spatial plate and frame elements, based on the ultimate strength analysis. At first, a newly proposed system using combined plate and beam elements is presented to expand the applicability of the structural reliability-based sensitivity analysis combined with collapse mode analysis. Next, the proposed system is demonstrated to be applicable through a numerical example applied to a simple box girder with longitudinal stiffeners. Finally, features of the structural reliability and sensitivity factors of a high-speed container ship based on collapse mode analysis are investigated by applying the newly developed system.

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A Method for Reliability-Based Sensitivity Analysis of Ship’s Hull Structures Using Combined Plate and Frame Structure Models

Okada

Masaoka

Murotsu

et al. 1999

Journal of Offshore Mechanics and Arctic Engineering

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Application of β-Unzipping Method in Offshore System Reliability Analysis Under Changing Load Pattern

Daghigh

Makouie

2003

Volume 2: Safety and Reliability; Pipeline Technology

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This paper is concerned with the reliability assessment of a fixed platform operating in intermediate water depth under extreme environmental conditions. The structure is modelled by two-dimensional frame structure and subjected to quasi-static loads. Extreme wave loads acting on the platform in the unidirectioal mode are estimated together with their probabilistic characteristics. Fully plastic capacities of the members are also treated as random variables. The structure is modelled as a plane truss by using beam-column models and the plastic collapse of the structure is evaluated by using a linearized plasticity condition of the section under effect of axial force to generate the safety margins. For compressional elements, the strength reduction is assumed proportional to the yield stress and for the tension members, it is assumed that the material has a perfect elastic-plastic behavior. Both hydrodynamic drag / inertia forces and slamming loads have been considered in strength and reliabilitry analysis. Using a matrix method, probabilistically dominant collapse modes are selected by applying the β-unzipping method. The system reliability is evaluated by using wave fragility analysis (changing load pattern) and the results have been compared with the fixed load pattern.

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Design philosophy of marine structures

Cited by 2 publications

References 0 publications

A Method for Reliability-Based Sensitivity Analysis of Ship’s Hull Structures Using Combined Plate and Frame Structure Models

A Method for Reliability-Based Sensitivity Analysis of Ship’s Hull Structures Using Combined Plate and Frame Structure Models

Application of β-Unzipping Method in Offshore System Reliability Analysis Under Changing Load Pattern

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