Milestone Plan: Effects of Porosity on the Fatigue Behavior of Aluminum Alloy Weldments PDF Download
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Author: F. V. Lawrence
Publisher:
ISBN:
Category :
Languages : en
Pages : 5
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Book Description
The work to be performed is the fatigue testing of aluminum alloy weldments containing various amounts of porosity. Approximately ninety specimens will be tested. The program is divided into three subprograms. Subprogram 1 involves 18 sound specimens to be tested with the reinforcement on. Subprogram II involves 36 specimens containing various levels of porosity to be tested with the reinforcement removed. Subprogram III involves 36 specimens containing various levels of porosity to be tested in the as-welded state. In each subprogram the following tasks will be performed in the following sequence: test specimen preparation (matching), nondestructive evaluation (x-radiography), fatigue testing, post-test examination (porosity level determination, fractography).
Author: F. V. Lawrence
Publisher:
ISBN:
Category :
Languages : en
Pages : 5
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Book Description
The work to be performed is the fatigue testing of aluminum alloy weldments containing various amounts of porosity. Approximately ninety specimens will be tested. The program is divided into three subprograms. Subprogram 1 involves 18 sound specimens to be tested with the reinforcement on. Subprogram II involves 36 specimens containing various levels of porosity to be tested with the reinforcement removed. Subprogram III involves 36 specimens containing various levels of porosity to be tested in the as-welded state. In each subprogram the following tasks will be performed in the following sequence: test specimen preparation (matching), nondestructive evaluation (x-radiography), fatigue testing, post-test examination (porosity level determination, fractography).
Author: F. V. Lawrence
Publisher:
ISBN:
Category :
Languages : en
Pages : 11
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Book Description
It appears that the characteristics of the toe of the weld controls the fatigue crack initiation and propagation phenomena in the as welded specimens; and the size, and distribution and possibly location of the largest pore(s) control the fatigue crack initiation and propagation phenomena in weld reinforcement removed specimens.
Author: Wallace Wolfred Sanders
Publisher:
ISBN:
Category : Aluminum
Languages : en
Pages : 21
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Author: F. V Lawrence (Jr)
Publisher:
ISBN: 9781581452051
Category : Aluminum alloys
Languages : en
Pages : 23
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Book Description
The results of the investigation indicate that 5083-5183 welds subjected to fatigue are little affected by porosity if the weld reinforcement is left in place. The weld reinforcement itself is the critical and fatigue limiting notch. Most welds tested with their reinforcement removed gave longer fatigue lives than as-welded tests regardless of porosity level. Porosity most influenced the fatigue lives of the reinforcement removed tests at the lowest stress levels. The radiographic standards currently in use by the U.S. Navy were found to be effective in insuring superior results with reinforcement removed welds. Conversely, few reinforcement removed welds which failed these standards gave shorter fatigue lives than porosity-free, as-welded welds.
Author:
Publisher:
ISBN:
Category : Technology
Languages : en
Pages : 1352
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Author: J. D. Burk
Publisher:
ISBN: 9781581452334
Category : Aluminum alloys
Languages : en
Pages : 14
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Author: Dimitris Kosteas
Publisher:
ISBN:
Category : Aluminum alloys
Languages : en
Pages : 633
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Author: W. W. Sanders
Publisher:
ISBN:
Category :
Languages : en
Pages : 21
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Author: Dimitris Kosteas
Publisher:
ISBN:
Category : Aluminum alloys
Languages : en
Pages : 40
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Author: Frederick VanBuren Lawrence
Publisher:
ISBN: 9781581451801
Category : Aluminum alloys
Languages : en
Pages : 23
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Book Description
