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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 : 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 : 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 : 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 : A. S. Wang
Publisher :
ISBN 13 :
Total Pages : 147 pages
Book Rating : 4.:/5 (227 download)
Download or read book Mixed-Mode Fracture of Uniaxial Fiber Reinforced Composites written by A. S. Wang and published by . This book was released on 1987 with total page 147 pages. Available in PDF, EPUB and Kindle. Book excerpt: Mixed-mode matrix fracture in notched off-axis undirectional composite is investigated. First the problem is treated by an exact formulation based on elastic fracture mechanics. It is then simulated by a finite element model. Correlation with experiment suggests a fracture criterion based on total strain energy release rate as the fracture parameter. Keywords: Composite material, Graphite epoxy, Mixed mode fracture matrix cracking, Singular integral equation, Finite element simulation, Experiment analysis correlation.
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 : 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 :
Publisher :
ISBN 13 :
Total Pages : 28 pages
Book Rating : 4.:/5 (317 download)
Download or read book Criterion for Mixed Mode Fracture in Composite Bonded Joints written by and published by . This book was released on 1986 with total page 28 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Roderick H. Martin
Publisher : ASTM International
ISBN 13 : 0803120125
Total Pages : 517 pages
Book Rating : 4.8/5 (31 download)
Download or read book Composite Materials written by Roderick H. Martin and published by ASTM International. This book was released on 1986 with total page 517 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Eugene T. Camponeschi
Publisher : ASTM International
ISBN 13 : 0803114982
Total Pages : 659 pages
Book Rating : 4.8/5 (31 download)
Download or read book Composite Materials written by Eugene T. Camponeschi and published by ASTM International. This book was released on 1993 with total page 659 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : H. Thomas Hahn
Publisher : ASTM International
ISBN 13 : 0803111908
Total Pages : 421 pages
Book Rating : 4.8/5 (31 download)
Download or read book Composite Materials written by H. Thomas Hahn and published by ASTM International. This book was released on 1989 with total page 421 pages. Available in PDF, EPUB and Kindle. Book excerpt: Annotation Proceedings of a symposium on [title] held April 1987, Cincinnati, OH. The majority of papers deal with composite systems of thermosetting epoxies. Some attention is given to more recent thermoplastic systems. Annotation copyrighted by Book News, Inc., Portland, OR.
Author : John E. Masters
Publisher : ASTM International
ISBN 13 : 0803109504
Total Pages : 456 pages
Book Rating : 4.8/5 (31 download)
Download or read book Fractography of Modern Engineering Materials written by John E. Masters and published by ASTM International. This book was released on 1987 with total page 456 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : William Mark Jordan
Publisher :
ISBN 13 :
Total Pages : 412 pages
Book Rating : 4.:/5 (164 download)
Download or read book The Effect of Resin Toughness on the Delamination Fracture Behavior of Graphite/epoxy Composites written by William Mark Jordan and published by . This book was released on 1985 with total page 412 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 : Andrew William Miller
Publisher :
ISBN 13 :
Total Pages : 736 pages
Book Rating : 4.:/5 (319 download)
Download or read book An Investigation of the Mode I and Mode II Fracture Toughness of Graphite/epoxy Composites written by Andrew William Miller and published by . This book was released on 1995 with total page 736 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : W. Steven Johnson
Publisher : ASTM International
ISBN 13 : 9780803104143
Total Pages : 507 pages
Book Rating : 4.1/5 (41 download)
Download or read book Delamination and Debonding of Materials written by W. Steven Johnson and published by ASTM International. This book was released on 1985 with total page 507 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :
Publisher :
ISBN 13 :
Total Pages : 56 pages
Book Rating : 4.:/5 (317 download)
Download or read book An Evaluation of Mixed-mode Delamination Failure Criteria written by and published by . This book was released on 1992 with total page 56 pages. Available in PDF, EPUB and Kindle. Book excerpt:
