Finite Element Stress Analysis of Midlife Refit Penetrations in QUEST Bottom Structures

Abstract

This technical memorandum describes the finite element stress analysis of proposed major penetrations in the midship bottom structure of CFAV QUEST. This work was undertaken for two purposes. The first objective was to determine if the proposed modifications would have any detrimental effect on the structural integrity of QUEST's hull structure. The second objective was to demonstrate and validate the new capabilities in the global-detail finite element analysis code VAST DSA (Vibration And STrength, Detail Stress Analysis) developed as part of DREA's Ship Structures project. The results indicated that the penetrations will cause significant increases in stress but these values are still well within acceptable design limits. VAST DSA proved to be an efficient process for undertaking the complex global-detail top/down finite element analysis. This complex analysis was undertaken within a reasonable time frame which will be further decreased in future with improvements in data management and model generation.

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Document Details

Document Type
Technical Report
Publication Date
Sep 01, 1997
Accession Number
ADA340395

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  • Neil G. Pegg

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  • Ground and Sea Platforms

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  • Naval Architecture and Marine Engineering.
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