FINITE ELEMENT STRESS ANALYSIS OF MIDLIFE REFIT PENETRATIONS IN QUEST BOTTOM STRUCTURE

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Authors
  1. Pegg, N.C.
Corporate Authors
Defence Research Establishment Atlantic, Dartmouth NS (CAN)
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.
Keywords
VAST DSA (Vibration and Strength, Detail Stress Analysis);MAESTRO;Structural optimization
Report Number
DREA-TM-97-249 — Technical Memorandum
Date of publication
01 Sep 1997
Number of Pages
25
DSTKIM No
98-00802
CANDIS No
507642
Format(s):
Hardcopy;Document Image stored on Optical Disk

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