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Delamination Growth In A Notched Graphite Epoxy Laminate Under Compression Fatigue Loading
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Book Synopsis Delamination Growth in a Notched Graphite/Epoxy Laminate Under Compression Fatigue Loading by : AF. Blom
Download or read book Delamination Growth in a Notched Graphite/Epoxy Laminate Under Compression Fatigue Loading written by AF. Blom and published by . This book was released on 1985 with total page 21 pages. Available in PDF, EPUB and Kindle. Book excerpt: This paper is concerned with the propagation of delamination in a graphite/epoxy composite laminate with an unloaded circular hole subjected to compression fatigue loading. Experimental and theoretical aspects of the problem are investigated.
Book Synopsis Delamination and Debonding of Materials by : W. Steven Johnson
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:
Book Synopsis Damage Development Mechanisms in Notched Graphite Epoxy Composite Laminates During Compressive Fatigue Loading by : Norman Frederick Black
Download or read book Damage Development Mechanisms in Notched Graphite Epoxy Composite Laminates During Compressive Fatigue Loading written by Norman Frederick Black and published by . This book was released on 1981 with total page 274 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Experimental and Analytical Study of Fatigue Damage in Notched Graphite/epoxy Laminates by :
Download or read book Experimental and Analytical Study of Fatigue Damage in Notched Graphite/epoxy Laminates written by and published by . This book was released on 1979 with total page 36 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Analysis of Instability-related Growth of a Through-width Delamination by : J. D. Whitcomb
Download or read book Analysis of Instability-related Growth of a Through-width Delamination written by J. D. Whitcomb and published by . This book was released on 1984 with total page 122 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Compression Fatigue Damage in Thick, Notched Graphite/Epoxy Laminates by : NF. Black
Download or read book Compression Fatigue Damage in Thick, Notched Graphite/Epoxy Laminates written by NF. Black and published by . This book was released on 1983 with total page 21 pages. Available in PDF, EPUB and Kindle. Book excerpt: This study has investigated the damage development mechanisms in notched graphite/epoxy composite laminates during constant-amplitude compressive fatigue loading. Laminates of two different stacking sequences were tested. The relationship between fatigue damage and the resulting life, stiffness, and strength of the laminates have been observed. X-ray radiography and ultrasonic C-scanning were used to characterize and monitor the damage that occurred during the fatigue loadings. Sectioning of the damaged laminates was performed to verify the extent of the observed damage in the X-ray radiographs and ultrasonic C-scans.
Book Synopsis Scientific and Technical Aerospace Reports by :
Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1992 with total page 1572 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Experimental and Analytical Study of Fatigue Damage in Notched Graphite/Epoxy Laminates by : JD. Whitcomb
Download or read book Experimental and Analytical Study of Fatigue Damage in Notched Graphite/Epoxy Laminates written by JD. Whitcomb and published by . This book was released on 1981 with total page 16 pages. Available in PDF, EPUB and Kindle. Book excerpt: Fatigue damage development in notched (0/±45/0)s, (45/0/-45/0)s, (90/±45/0)s, and (45/90/-45/0)s graphite/epoxy laminates was investigated. Both tension and compression fatigue behaviors were studied. Most of the tests were conducted at load levels equal to two thirds of the ultimate tensile strength of the notched specimens. After fatigue loading, specimens were examined for damage type and location using light microscopy, scanning electron microscopy, ultrasonic C-scans, and X-radiography. Delamination and ply cracking were found to be the dominant types of fatigue damage. In general, ply cracks did not propagate into adjacent plies of differing fiber orientation. To help understand the varied fatigue observations, the interlaminar stress distribution was calculated with finite element analysis for the regions around the hole and along the straight free edge. Comparison of observed delamination locations with the calculated stresses indicated that both interlaminar shear and peel stresses must be considered when predicting delamination. The effects of the fatigue cycling on residual strength and stiffness were measured for some specimens of each laminate type. Fatigue loading generally caused only small stiffness losses. In all cases, residual strengths were greater than or equal to the virgin strengths.
Book Synopsis Fatigue Delamination Growth in Notched Graphite Epoxy Laminates with Different Stacking Sequences by : Marco Beghini
Download or read book Fatigue Delamination Growth in Notched Graphite Epoxy Laminates with Different Stacking Sequences written by Marco Beghini and published by . This book was released on 1990 with total page 12 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis The Effect of Loading Parameters on Fatigue of Composite Laminates: Part V. by :
Download or read book The Effect of Loading Parameters on Fatigue of Composite Laminates: Part V. written by and published by . This book was released on 2001 with total page 58 pages. Available in PDF, EPUB and Kindle. Book excerpt: This report is the fifth in a series of reports on the damage growth of notched and visible impact-damaged AS4/3501-6 graphite/epoxy quasi-isotropic laminates under long-term mechanical fatigue loading. The effects of load type, load level, load sequence, and spectrum modification are evaluated in this study. X-ray radiography is taken of the test specimens to monitor the fatigue damage, which are in the form of splitting and delamination around the center hole of a specimen. Modifying the compression-dominated loading spectrum by omitting the two lowest load levels has been found to have little effect on the propagation of damage while reducing testing time by 99.7%. Experimental results indicate that growth of split-induced delamination under constant amplitude tension-compression (T-C) fatigue occurs mostly between and along the splits in a narrow band. Under compression-compression (C-C) loading, the mode of damage growth changes from splitting to widthwise extension of delamination and fiber failure. None of the open-hole specimens failed after 10(exp 6) cycles under constant amplitude tension-tension (T-T) loading. However, x-ray radiography showed that the specimens suffered very different damage at different load levels. The residual compressive strength (RCS) is influenced by the type of damage to varying degrees depending on the load levels. In spectrum fatigue loading, residual tensile strength (RTS) were relatively unaffected while RCS was affected significantly. Thus, it is difficult to identify a single damage parameter that could be correlated to changes in strength. However, there is enough data to propose a prediction model for open-hole specimens under constant amplitude loading, which matched well with collected data.
Book Synopsis Damage Development Mechanisms in Notched Graphite Epoxy Composite Laminates During Compressive Fatigue Loading by : Norman Frederick Black
Download or read book Damage Development Mechanisms in Notched Graphite Epoxy Composite Laminates During Compressive Fatigue Loading written by Norman Frederick Black and published by . This book was released on 1981 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Fatigue Damage Development in Notched (02/±45)s Laminates by : N. Chinatambi
Download or read book Fatigue Damage Development in Notched (02/±45)s Laminates written by N. Chinatambi and published by . This book was released on 1989 with total page 21 pages. Available in PDF, EPUB and Kindle. Book excerpt: This study investigates delamination growth from holes in carbon fibre reinforced epoxy (CFRE) AS/3501-6 (02/±45)s laminates under tensile static and fatigue loading. Delaminations grow in a direction parallel to the loading at the 0/45 and 45/-45 interfaces. Attempts to control the location of the delamination by using inserts were unsuccessful. The delamination growth rates were fitted by a power function of the stress amplitude and mean stress. The stress amplitude is the dominant parameter. Tests were performed on dry and saturated specimens at room temperature, and there was no measurable difference in growth rates. However, block loading tests, where an overload was applied at regular intervals, resulted in growth rates five times higher than a linear sum of the individual growth rates. Compliance changes were measured and correlated with the extent of delamination. The associated matrix cracking contributes substantially to the compliance changes. The amount of matrix cracking for a given delamination length is a function of the type and level of loading. The results are interpreted in terms of the total strain energy release rate, G. Once the presence of matrix cracking is allowed for, there is reasonable agreement with results in the literature.
Book Synopsis Compressive Behaviour of Composites by : C. Soutis
Download or read book Compressive Behaviour of Composites written by C. Soutis and published by iSmithers Rapra Publishing. This book was released on 1997 with total page 140 pages. Available in PDF, EPUB and Kindle. Book excerpt: This report reviews the most important studies undertaken of the compressive failure mechanisms encountered in modern composite materials. It considers first the behaviour of unidirectional laminates, followed by unnotched and notched multidirectional structures. It then considers existing theoretical models. An additional indexed section containing several hundred abstracts from the Rapra Polymer Library database provides useful references for further reading.
Download or read book Applied mechanics reviews written by and published by . This book was released on 1948 with total page 400 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Effects of Truncation of a Predominantly Compression Load Spectrum on the Life of a Notched Graphite/epoxy Laminate by :
Download or read book Effects of Truncation of a Predominantly Compression Load Spectrum on the Life of a Notched Graphite/epoxy Laminate written by and published by . This book was released on 1979 with total page 34 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Long-term Behavior of Composites by : T. Kevin O'Brien
Download or read book Long-term Behavior of Composites written by T. Kevin O'Brien and published by ASTM International. This book was released on 1983 with total page 320 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Composite Materials by : H. Thomas Hahn
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.
