Fatigue Crack Propagation in 2024-T351/7075-T6 Aluminum Alloy Laminates PDF Download
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Author: Nien-Hua Chao
Publisher:
ISBN:
Category : Aluminum alloys
Languages : en
Pages : 96
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Book Description
Author: Nien-Hua Chao
Publisher:
ISBN:
Category : Aluminum alloys
Languages : en
Pages : 96
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Book Description
Author: Robert G. Dubensky
Publisher:
ISBN:
Category : Aluminum alloys
Languages : en
Pages : 970
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Book Description
Author: Richard E. Whaley
Publisher:
ISBN:
Category :
Languages : en
Pages : 32
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Book Description
Results are presented of a series of fatigue tests to study crack propagation and the resulting stress distributions in tension panels. The panels were all of the same general design, and configurations varied mainly in the relative amount of cross-sectional area in the skin, stiffeners, and flanges. The panels were constructed of 2024-T3 and 7075-T6 aluminum alloys. It was found that the average rate of crack growth was slower in panels made of 2024-T3 aluminum alloy than in panels made of 7075-T6 aluminum alloy. All cracks initiated in the skin, and the slowest crack growth was measured in configurations where the highest percentage of cross-sectional area was in the stiffeners. Strain-gage surveys were made to determine the redistribution of stress as the crack grew across the panels. As a crack approached a given point in the skin, the stress at that point increased rapidly. The stress in the stiffeners also increased as the crack approached the stiffeners. During the propagation of the crack the stress was not distributed uniformly in the remaining area.
Author: National Aeronautics and Space Administration (NASA)
Publisher: Createspace Independent Publishing Platform
ISBN: 9781721800650
Category :
Languages : en
Pages : 24
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Book Description
Experimental test procedures for the development of fatigue crack growth rate data has been standardized by the American Society for Testing and Materials. Over the past 30 years several gradual changes have been made to the standard without rigorous assessment of the affect these changes have on the precision or variability of the data generated. Therefore, the ASTM committee on fatigue crack growth has initiated an international round robin test program to assess the precision and variability of test results generated using the standard E647-00. Crack growth rate data presented in this report, in support of the ASTM roundrobin, shows excellent precision and repeatability. Forth, Scott C. and Wright, Christopher W. and Johnston, William M., Jr. Langley Research Center NASA/TM-2005-213907, L-19163
Author: Nasa Technical Reports Server (Ntrs)
Publisher: BiblioGov
ISBN: 9781289256135
Category :
Languages : en
Pages : 28
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Book Description
The NASA Technical Reports Server (NTRS) houses half a million publications that are a valuable means of information to researchers, teachers, students, and the general public. These documents are all aerospace related with much scientific and technical information created or funded by NASA. Some types of documents include conference papers, research reports, meeting papers, journal articles and more. This is one of those documents.
Author: Herbert F. Hardrath
Publisher:
ISBN:
Category : Fracture mechanics
Languages : en
Pages : 24
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Book Description
Author: C. Michael Hudson
Publisher:
ISBN:
Category :
Languages : en
Pages : 29
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Book Description
Author: Ravula Sumeer Reddy
Publisher:
ISBN:
Category : Airframes
Languages : en
Pages : 140
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Author: Patrick Joseph Cain
Publisher:
ISBN:
Category :
Languages : en
Pages : 256
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Book Description
Author: K. Walker
Publisher:
ISBN:
Category : Aluminum alloys
Languages : en
Pages : 14
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Book Description
An effective stress, ? ̄ = ?max1-m??m where m is assumed to be a material constant, is shown to predict the effect of stress ratio on crack propagation and fatigue life for two aluminum alloys. Simple approximations of notch stress and strain using Neuber's notch rule are introduced to extend the predictions of stress-ratio effects to inelastic notch behavior.
