Fourth Technical Progress Report of the Ship Structure Committee PDF Download
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ISBN: 9781581450545
Category :
Languages : en
Pages : 14
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Author:
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ISBN:
Category :
Languages : en
Pages :
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Author: United States. Ship Structure Committee
Publisher:
ISBN:
Category : Hulls (Naval architecture)
Languages : en
Pages : 100
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Author: United States. Ship Structure Committee
Publisher:
ISBN:
Category : Hulls (Naval architecture)
Languages : en
Pages : 40
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Author: Ship Structure Committee
Publisher:
ISBN:
Category :
Languages : en
Pages : 14
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![Ship Structure Committee Technical Reports. [bibliography]. PDF](https://books.google.com/books/content/images/frontcover/xQzMN360MyUC?fife=w80-h100)
Author: United States. Ships Bureau
Publisher:
ISBN:
Category :
Languages : en
Pages : 26
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Author:
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ISBN:
Category : Naval architecture
Languages : en
Pages :
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Author: SHIP STRUCTURE COMMITTEE WASHINGTON D C.
Publisher:
ISBN:
Category :
Languages : en
Pages : 14
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Justification of the various structural modifications employed is indicated by the service record of Liberty ships and T-2 Tankers, based on reduction of frequency of major casualties. Brittle fractures may be initiated in welded ships if the steel used in the main hull girder absorbs less than 15 ft.-lb. of energy in the standard V-notch Charpy impact test at a temperature of 60 F. It is not known, however, how much more notch-tough the steel must be in order to remove the danger of brittle fracture. This statement is based on the investigation of failures during the past eight years and consequently is established only for the types of vessels covered by the investigation and the operating conditions that existed for these same vessels. Based on the conclusion 3 above, some ship plates in 3/4-in. thickness would appear to be undesirable for use in welded ship construction. Either preheating or postheating generally lowers the transition temperature of ship steel weldments. (Author).
Author: United States. Ship Structure Committee
Publisher:
ISBN:
Category : Naval research
Languages : en
Pages : 62
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Author: United States. Ship Structure Committee
Publisher:
ISBN:
Category : Naval architecture
Languages : en
Pages : 304
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Author: SHIP STRUCTURE COMMITTEE WASHINGTON D C.
Publisher:
ISBN:
Category :
Languages : en
Pages : 12
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The report is arranged in four parts under the general subjects of Design, Fabrication, Materials, and Statistics. Under the first, Design, is recorded confirmation of theoretical formulas for the bending of the hull girder of a ship and demonstration by laboratory tests of the improvements to be gained by relatively simple changes in desgn details. The second part, on Materials summarizes the continuation of the basic work on steel hull plate, looking toward an understanding of the fundamental reasons for brittle fracture, and shows the progress being made toward improvements in specifications in an effort to lower the incidence of fractures. Methods of Fabrication, the third part, summarizes the effect of certain fabrication practices on structural performance. In the fourth part cumulative statistical data on ship casualties are brought up to date.
