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Measurement And Analysis Of Critical Ctoa For An Aluminum Alloy Sheet
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Author :National Aeronautics and Space Administration (NASA) Publisher :Createspace Independent Publishing Platform ISBN 13 :9781722360696 Total Pages :34 pages Book Rating :4.3/5 (66 download)
Book Synopsis Measurement and Analysis of Critical Ctoa for an Aluminum Alloy Sheet by : National Aeronautics and Space Administration (NASA)
Download or read book Measurement and Analysis of Critical Ctoa for an Aluminum Alloy Sheet written by National Aeronautics and Space Administration (NASA) and published by Createspace Independent Publishing Platform. This book was released on 2018-07-07 with total page 34 pages. Available in PDF, EPUB and Kindle. Book excerpt: The stable tearing behavior of thin sheets of 2024-T3 aluminum alloy was investigated for middle crack tension, M(T), and compact tension, C(T), specimens. The surface crack-tip opening angle (CTOA), applied loads, crack extension, and local displacements were measured. A critical CTOA fracture criterion was incorporated into a two-dimensional, elastic plastic finite element code and used to simulate the experimental fracture behavior. The CTOA measurements and observations of the fracture surfaces have shown that large values for surface CTOA were observed for small crack extensions (less than the sheet thickness); substantial tunneling of the crack was associated with small crack extensions; crack tunneling in the M(T) specimen was less than that observed in the C(T) configuration; for larger crack extensions, the measured CTOA values were determined to be approximately 6 degrees for both the M(T) and C(T) configuration; and for larger crack extensions, crack tunneling remained constant. The two-dimensional finite element predictions of fracture behavior assumed a constant critical CTOA value of 6 degrees and accounted for local crack tip constraint with a plane strain core of elements ahead of the crack tip. The plane strain core extended 5 mm above the crack plane. The simulations were within +/- 4 percent of the maximum applied load for the C(T) tests within 2 percent for the M(T) tests. Dawicke, D. S. and Sutton, M. A. and Newman, J. C., Jr. and Bigelow, C. A. Langley Research Center RTOP 538-02-10-01...
Book Synopsis Measurement and Analysis of Critical CTOA for an Aluminum Alloy Sheet by :
Download or read book Measurement and Analysis of Critical CTOA for an Aluminum Alloy Sheet written by and published by . This book was released on 1993 with total page 36 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Measurement and Analysis of Critical CTOA for an Aluminum Alloy Sheet by : CA. Bigelow
Download or read book Measurement and Analysis of Critical CTOA for an Aluminum Alloy Sheet written by CA. Bigelow and published by . This book was released on 1995 with total page 22 pages. Available in PDF, EPUB and Kindle. Book excerpt: The stable tearing behavior of thin sheets of 2024-T3 aluminum alloy was investigated for middle crack tension, M(T), and compact tension, C(T), specimens. The surface crack-tip opening angle (CTOA), applied loads, crack extension, and local displacements were measured. A critical CTOA fracture criterion was incorporated into a two-dimensional, elastic-plastic finite element code and used to simulate the experimental fracture behavior.
Book Synopsis Orientation Effects on the Measurement and Analysis of Critical CTOA in an Aluminum Alloy Sheet by : M. A. Sutton
Download or read book Orientation Effects on the Measurement and Analysis of Critical CTOA in an Aluminum Alloy Sheet written by M. A. Sutton and published by . This book was released on 1994 with total page 20 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Measurement and Analysis If Critical CTOA for an Aluminum Alloy Sheet by : D. S. Dawicke
Download or read book Measurement and Analysis If Critical CTOA for an Aluminum Alloy Sheet written by D. S. Dawicke and published by . This book was released on 1993 with total page 31 pages. Available in PDF, EPUB and Kindle. Book excerpt:
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