PROBABILISTIC STRUCTURAL ANALYSIS OF SHIP HULL LONGITUDINAL STRENGTH
Existing probabilistic structural design methods are reviewed, their applicability to ship hull structural design considered and the most promising probabilistic analysis techniques are identified. The current state of knowledge concerning structural modes of failure and load distribution is considered with respect to its impact on probabilistic structural analyses. The emphasis is on longitudinal strength considerations. Factors influencing strength, in terms of uncertainties in ship strength distribution, are reviewed. Different methods are proposed to obtain coefficients of variation for various types of data on the uncertainties. Sample calculations are performed for a number of ships using an approximate probabilistic method and yielding safety margins for each. This method requires that only the coefficients of variation of the strength and load be known. A computer program is developed to perform this calculation for any ship subjected to any load or mode of failure.
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Corporate Authors:
Rosenblatt (M) and Son, Incorporated
350 Broadway
New York, NY United States 10013United States Coast Guard
Office of Merchant Marine Safety
Washington, DC United States 20590Ship Structure Committee
National Academy of Science, 2101 Constitution Avenue, NW
Washington, DC United States 20418 -
Authors:
- Daidola, J C
- Basar, N S
- Publication Date: 1981
Media Info
- Features: References;
- Pagination: 88 p.
Subject/Index Terms
- TRT Terms: Computer programs; Failure; Hulls; Longitudinal strength; Strength of materials; Structural analysis; Structural design
- Identifier Terms: Ship Structure Committee
- Old TRIS Terms: Computer programs (Structural analysis); Failure mode; Hull failure; Hull strength; Hull structural analysis
- Subject Areas: Marine Transportation; Materials;
Filing Info
- Accession Number: 00334344
- Record Type: Publication
- Source Agency: Ship Structure Committee
- Report/Paper Numbers: SSC-301
- Contract Numbers: DOT-CG-61908-A
- Files: TRIS
- Created Date: May 21 1981 12:00AM