Sensitivity Analysis for the Stiffened Plate Structure System with Crack Defects

Wei Guang An; Hai An; Xiang Hua Song

doi:10.4028/www.scientific.net/KEM.488-489.706

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HomeKey Engineering MaterialsKey Engineering Materials Vols. 488-489Sensitivity Analysis for the Stiffened Plate...

Sensitivity Analysis for the Stiffened Plate Structure System with Crack Defects

Abstract:

The influence of crack defects on the ultimate strength of stiffened plate is analyzed, and reliability calculation and sensitivity analysis expressions of stiffened plate elements are given in this paper. An approach to sensitivity analysis for the global reliability index are proposed for the structure system which consists of stiffened plate elements with crack defects, providing the base for analyzing the contribution of design variables to the system reliability and seeking conveniently weak elements which reduce the reliability index of structure system. Finally, the validity of the approach is verified by taking a numerical example of a cabin section of the ship structure. The approach proposed in this paper provides an applicable reference for the safe design and maintenance of structure system.

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Periodical:

Key Engineering Materials (Volumes 488-489)

Pages:

706-709

DOI:

https://doi.org/10.4028/www.scientific.net/KEM.488-489.706

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Online since:

September 2011

Authors:

Wei Guang An, Hai An, Xiang Hua Song

Keywords:

Crack Defect, Reliability Analysis, Reverse Node Forces, Sensitivity Analysis, Stiffened Plate

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References

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DOI: 10.1007/bf03246234

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