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EnglishIn the present work the calibration is presented of a partial safety factor format for the verification of the hull girder in bending conditions. The calibration is performed by means of a second level reliability model, based on a FORM/SORM procedure. All the steps of the calibration process are described, including: choice of the failure equations inherent to the problem, characterisation of the stochastic model for the second level analysis, application of the analysis to a calibration set, selection of a target reliability, identification of proper ranges of variability for the partial safety factors, choice of a criterion of closeness of the code to the target. The procedure is in the present case applied to a homogeneous set of longitudinally framed, double hull tankers. The result of the study is a reliability-based formulation for the checks of mid-ship sections: formats of this kind are suitable to be adopted as Rules by Classification Societies.
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| Titolo: | Calibration of a partial safety factor format for the verification of the ship’s longitudinal strength |
| Autori: | |
| Data di pubblicazione: | 1999 |
| Abstract: | In the present work the calibration is presented of a partial safety factor format for the verification of the hull girder in bending conditions. The calibration is performed by means of a second level reliability model, based on a FORM/SORM procedure. All the steps of the calibration process are described, including: choice of the failure equations inherent to the problem, characterisation of the stochastic model for the second level analysis, application of the analysis to a calibration set, selection of a target reliability, identification of proper ranges of variability for the partial safety factors, choice of a criterion of closeness of the code to the target. The procedure is in the present case applied to a homogeneous set of longitudinally framed, double hull tankers. The result of the study is a reliability-based formulation for the checks of mid-ship sections: formats of this kind are suitable to be adopted as Rules by Classification Societies. |
| Handle: | http://hdl.handle.net/11567/201053 |
| ISBN: | 0791819647 9780791819647 |
| Appare nelle tipologie: | 04.01 - Contributo in atti di convegno |
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