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Author : Curtis Marcel Hargrove
Publisher :
ISBN 13 :
Total Pages : 67 pages
Book Rating : 4.:/5 (127 download)
Download or read book Mixed-mode failure of graphite/epoxy composite by laser speckle technique written by Curtis Marcel Hargrove and published by . This book was released on 1996 with total page 67 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Md Shahjahan
Publisher :
ISBN 13 :
Total Pages : 110 pages
Book Rating : 4.:/5 (127 download)
Download or read book Mixed-mode failure of graphite/epoxy composites with cracks written by Md Shahjahan and published by . This book was released on 1995 with total page 110 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : S. L. Donaldson
Publisher :
ISBN 13 :
Total Pages : 42 pages
Book Rating : 4.:/5 (227 download)
Download or read book Fractography of Mixed Mode I - II Failure in Graphite/Epoxy and Graphite/Thermoplastic Unidirectional Composites written by S. L. Donaldson and published by . This book was released on 1985 with total page 42 pages. Available in PDF, EPUB and Kindle. Book excerpt: The notched off-axis tensile test and the notched three rail shear test were used to produce states of in-plane loading varying from pure Mode I (crack opening) to Mode II (forward shearing). The two material systems tested were Fiberite T300/1034C graphite/epoxy and Imperial Chemical Industries graphite reinforced polyetheretherketone thermoplastic composite (APC-1 PEEK). Using a scanning electron microscope, a detailed examination of the resulting fracture surfaces was conducted. Results at magnification levels of 100X and 800X are presented. Very distinct changes can be observed in each material as the load ratio changes. In addition, for a fixed mode load ratio, large differences can be seen in the matrix deformation patterns between the two material systems. Of particular interest are ductile spike formations seen in the highly shear loaded PEEK specimens. These observations provide some insight as to the increased toughness seen at higher Mode II ratios, and the increased toughness seen in the thermoplastic system. (Author).
Author :
Publisher :
ISBN 13 :
Total Pages : 30 pages
Book Rating : 4.:/5 (317 download)
Download or read book Failure of Morphology of (0 Deg)8 Graphite/epoxy as Influenced by Environments and Processing written by and published by . This book was released on 1981 with total page 30 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :
Publisher :
ISBN 13 :
Total Pages : 704 pages
Book Rating : 4.:/5 (31 download)
Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1995 with total page 704 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : W. Binienda
Publisher :
ISBN 13 :
Total Pages : 14 pages
Book Rating : 4.:/5 (125 download)
Download or read book A Criterion for Mixed-Mode Matrix Cracking in Graphite-Epoxy Composites written by W. Binienda and published by . This book was released on 1990 with total page 14 pages. Available in PDF, EPUB and Kindle. Book excerpt: In this paper, mixed-mode matrix fracture in graphite-epoxy composites was studied. Experimental investigation was conducted on a family of doubly side-notched unidirectional off-axis specimens. By varying the notch depth and the off-axis angle, a total of 28 fracture conditions of differing mixed-mode ratios were produced. Fracture analysis of the test data suggested that the total strain energy release rate is a suitable material condition for mixed-mode matrix cracking in graphite-epoxy composites.
Author : Scott Ray White
Publisher :
ISBN 13 :
Total Pages : 194 pages
Book Rating : 4.:/5 (168 download)
Download or read book Mixed-mode Interlaminar Fracture of Graphite/epoxy Composites written by Scott Ray White and published by . This book was released on 1987 with total page 194 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :
Publisher :
ISBN 13 :
Total Pages : 230 pages
Book Rating : 4.:/5 (319 download)
Download or read book NASA Technical Memorandum written by and published by . This book was released on 1988 with total page 230 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Don H. Morris
Publisher :
ISBN 13 :
Total Pages : 32 pages
Book Rating : 4.:/5 (227 download)
Download or read book Mixed-Mode Fracture of Graphite/Epoxy Composites written by Don H. Morris and published by . This book was released on 1977 with total page 32 pages. Available in PDF, EPUB and Kindle. Book excerpt: The reported research presents results on the fracture strength of graphite/epoxy (T300/5208) (0/+ or - 45) and (0/+ or - 45/90) symmetric laminates in the presence of angle cracks. The results indicate that the fracture strength can be predicted irrespective of the crack orientation if one uses the effective normal crack length in the equation developed for normal cracks. The fracture strength prediction is made using a two parameter (unnotched fracture strength and inferred dimensions of the damage zone) model, when the laminate is subjected to uniaxial loading along one of the material symmetry axes. The results indicate that the critical damage zone is not constant for the two laminates although it is independent of the crack orientation. (Author).
Author :
Publisher :
ISBN 13 :
Total Pages : 86 pages
Book Rating : 4.:/5 (317 download)
Download or read book Deformation and Failure Mechanisms of Graphite/epoxy Composites Under Static Loading written by and published by . This book was released on 1981 with total page 86 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Michael Frank Hibbs
Publisher :
ISBN 13 :
Total Pages : 448 pages
Book Rating : 4.:/5 (21 download)
Download or read book Microscopic Delamination Processes and the Resulting Crack Tip Strain Fields of Graphite/epoxy Composites written by Michael Frank Hibbs and published by . This book was released on 1988 with total page 448 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : L. Arcan
Publisher :
ISBN 13 :
Total Pages : 27 pages
Book Rating : 4.:/5 (125 download)
Download or read book SEM Fractography of Pure and Mixed-Mode Interlaminar Fractures in Graphite/Epoxy Composites written by L. Arcan and published by . This book was released on 1987 with total page 27 pages. Available in PDF, EPUB and Kindle. Book excerpt: The objective of this study was to characterize the morphology of interlaminar fractures in unidirectional graphite/epoxy composites. The specific objective was to correlate characteristic fractographic patterns for different pure and mixedmode loadings with the loading parameters and fracture mechanisms. Two graphite/epoxy composite materials were investigated, one with a brittle matrix and the other with a rubber-toughened matrix. The tests were conducted with a specially designed loading system which allows the application of pure Mode I or Mode II loadings or any combination thereof. SEM fractographs, including stereo pairs, were taken of the specimens after failure at various points across the width of the crack and at various distances from the initial crack front. In the case of the brittle matrix composite, the fibers are, in general, covered with a film of matrix. The matrix fracture surface consists of hackles resulting from interfacial tensile or shear failure and tensile failure normal to the maximum tensile stress. The hackle density increases from Mode I, to Mode II, to mixed Mode I and II. In the case of the toughened matrix composite, the fibers are covered with matrix for Mode I and mixed Mode I and II fractures, whereas they are clean under Mode II and mixed Mode II with compression loading. Matrix fracture is granular or consists of hackles with a low degree of orientation and regularity increasing from Mode I to Mode II. Failure mechanisms include interfacial shear and high ductile or plastic elongation of the matrix.
Author : GE. Law
Publisher :
ISBN 13 :
Total Pages : 18 pages
Book Rating : 4.:/5 (125 download)
Download or read book A Mixed-Mode Fracture Analysis of (±25/90n)s Graphite/Epoxy Composite Laminates written by GE. Law and published by . This book was released on 1984 with total page 18 pages. Available in PDF, EPUB and Kindle. Book excerpt: An investigation of the fracture mechanisms and behavior of sub-laminate cracking in graphite/epoxy composite laminates is presented. A series of laminates of the form (±25/90n)s is chosen for analytical modeling and compared with experimental results. By varying the number of 90-deg plies, indicated by n, several important and distinct fracture modes are identified. The thickness of the 90-deg layer is the single parameter that separates these fracture events. The present work focuses in particular on the mechanisms of transverse ply cracking and free-edge delamination.
Author : Society for Experimental Mechanics (U.S.)
Publisher :
ISBN 13 :
Total Pages : 452 pages
Book Rating : 4.:/5 (318 download)
Download or read book Proceedings of the Society for Experimental Mechanics written by Society for Experimental Mechanics (U.S.) and published by . This book was released on 1985 with total page 452 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :
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ISBN 13 :
Total Pages : 22 pages
Book Rating : 4.:/5 (938 download)
Download or read book Mixed-mode Fracture in Graphite/epoxy Laminates written by and published by . This book was released on 1986 with total page 22 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :
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ISBN 13 :
Total Pages : 232 pages
Book Rating : 4.F/5 ( download)
Download or read book Engine Structures written by and published by . This book was released on 1988 with total page 232 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Samuel Ikechukwu Ibekwe
Publisher :
ISBN 13 :
Total Pages : 302 pages
Book Rating : 4.:/5 (251 download)
Download or read book Study of Artificially Induced Failure Modes in Graphite-epoxy Composite Laminates Using High Sesitivity Moire Interferometry written by Samuel Ikechukwu Ibekwe and published by . This book was released on 1991 with total page 302 pages. Available in PDF, EPUB and Kindle. Book excerpt:
