Three-dimensional Analysis of Chevron-notched Specimens by Boundary Integral Method
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Page : 114 pages
File Size : 48,21 MB
Release : 1983
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Page : 114 pages
File Size : 48,21 MB
Release : 1983
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Author : Louis J. Ghosn
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Page : 126 pages
File Size : 25,50 MB
Release : 1983
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Author : A. Mendelson
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Page : 12 pages
File Size : 46,8 MB
Release : 1984
Category : Boundary integral method
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An analysis was performed, of the three-dimensional elastic problem of the chevron-notched short-bar specimen, using the boundary integral equation method. This method makes use of boundary surface elements only in obtaining the solution. Results were obtained for various notch geometries, and included displacement and stress fields. Load line displacements, and stress-intensity factors determined both from strain calculations and compliance calculations were compared with experimental values obtained at NASA Lewis Research Center. Good agreement was obtained.
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Page : 38 pages
File Size : 49,22 MB
Release : 1984
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Author : John H. Underwood
Publisher : ASTM International
Page : 353 pages
File Size : 47,86 MB
Release : 1984
Category : Technology & Engineering
ISBN : 9780803104013
Author : National Aeronautics and Space Administration (NASA)
Publisher : Createspace Independent Publishing Platform
Page : 34 pages
File Size : 18,95 MB
Release : 2018-08-16
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ISBN : 9781725622586
Stress-intensity factors and load-line displacements were calculated for chevron-notched bar and rod fracture specimens using a three-dimensional finite-element analysis. Both specimens were subjected to simulated wedge loading (either uniform applied displacement or uniform applied load). The chevron-notch sides and crack front were assumed to be straight. Crack-length-to-specimen width ratios (a/w) ranged from 0.4 to 0.7. The width-to-thickness ratio (w/B) was 1.45 or 2. The bar specimens had a height-to-width ratio of 0.435 or 0.5. Finite-element models were composed of singularity elements around the crack front and 8-noded isoparametric elements elsewhere. The models had about 11,000 degrees of freedom. Stress-intensity factors were calculated by using a nodal-force method for distribution along the crack front and by using a compliance method for average values. The stress intensity factors and load-line displacements are presented and compared with experimental solutions from the literature. The stress intensity factors and load-line displacements were about 2.5 and 5 percent lower than the reported experimental values, respectively. Raju, I. S. and Newman, J. C., Jr. Langley Research Center NASA-TM-85798, NAS 1.15:85798 RTOP 505-33-23-02...
Author : Ersan Ustundag
Publisher : John Wiley & Sons
Page : 655 pages
File Size : 27,52 MB
Release : 2009-09-28
Category : Technology & Engineering
ISBN : 0470295023
This volume is part of the Ceramic Engineering and Science Proceeding (CESP) series. This series contains a collection of papers dealing with issues in both traditional ceramics (i.e., glass, whitewares, refractories, and porcelain enamel) and advanced ceramics. Topics covered in the area of advanced ceramic include bioceramics, nanomaterials, composites, solid oxide fuel cells, mechanical properties and structural design, advanced ceramic coatings, ceramic armor, porous ceramics, and more.
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Page : 300 pages
File Size : 16,90 MB
Release : 1995
Category : Aeronautics
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Page : 58 pages
File Size : 28,37 MB
Release : 1984
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Page : 1066 pages
File Size : 39,74 MB
Release : 1986
Category : Mechanics, Applied
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