Results 171 to 180 of about 23,739,704 (214)
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Evaluation of Mode-I interlaminar fracture toughness for fiber-reinforced composite materials
Composites Science and Technology, 1992Abstract The basis for the characterization of interlaminar crack growth in composite materials is discussed. Mode-I interlaminar crack growth in a unidirectional T300/634. DDS carbon-fiber/epoxy composite was studied. A simple model is proposed to estimate the orthotropic correction factor of the stress-intensity factor for the DCB interlaminar ...
Lin Ye
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Mode I Interlaminar fracture Toughness and Fracture Mechanism of Angle-Ply Carbon/Nylon Laminates
Journal of Composite Materials, 1996Interlaminar fracture toughness and fracture mechanism in carbon fiber reinforced nylon laminates have been investigated. Mode I interlaminar fracture toughness tests are carried out on the double cantilever beam (DCB) specimens made of four kinds of angle-ply laminates.
Keiichiro Tohgo, Hitoshi Ishii
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The toughness contribution of bamboo node to the Mode I interlaminar fracture toughness of bamboo
Wood Science and Technology, 2013Bamboo is a kind of biological composite reinforced by unidirectional long fibers. The cleavage strength along grain of bamboo internode is low; however, the existence of bamboo node can hinder the propagation of interlaminar crack to make up for the defect of weak opening mode fracture toughness along interlamination.
Fuli Wang +3 more
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Rate Effects on Mode I Interlaminar Fracture Toughness in Composite Materials
Journal of Composite Materials, 1987The Double Cantilever Beam (DCB) test geometry was utilized to investigate the rate ef fects on Mode I interlaminar fracture toughness in graphite/PEEK and graphite/epoxy composites. The tests were performed over a range of crosshead speeds from 4.2 × 10 -6 to 6.7 × 10 -1
A.J. Smiley, R.B. Pipes
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Interlaminar fracture toughness of CFRP in Mode I and Mode II determined by Raman spectroscopy
Composites Part A: Applied Science and Manufacturing, 2001Fracture toughness of multidirectional Carbon Fiber Reinforced Plastics (CFRP) for Mode I and Mode II was investigated using Double Cantilever Beam (DCB), End Notched Flexure (ENF) specimens and Raman Coating Method. The distribution of strain near the crack tip of CFRP was measured by Raman spectroscopy.
Hiroaki MIYAGAWA +2 more
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Interlaminar fracture toughness testing of composite mode I and mode II DCB specimens
Polymer Engineering & Science, 1988AbstractA computer controlled test procedure for evaluating mode I and mode II interlaminar fracture behavior was used in experiments with eight different resin matrix/graphite fiber composites. Four analytical methods for calculating fracture toughness were compared.
L. B. Ilcewicz, P. E. Keary, J. Trostle
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Ceramic Matrix Composite Interlaminar Fracture Toughness (Mode I-II) Characterization
Volume 6: Ceramics; Controls, Diagnostics and Instrumentation; Education; Manufacturing Materials and Metallurgy; Honors and Awards, 2015The objective of this effort is to develop and demonstrate innovative interlaminar Mode I and Mode II fracture toughness analysis and test methods for ceramic matrix composites (CMC). Currently, there are number of American Society for Testing and Materials (ASTM) test standards for CMC’s at both ambient and elevated temperatures, including ...
Frank Abdi +6 more
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Effect of the loading rate on mode I interlaminar fracture toughness of laminated composites
Engineering Fracture Mechanics, 2006Abstract The objective of the present study is to determine the influence of the loading rate on the critical energy release rate G Ic of fibre-reinforced epoxy laminates. In order to perform pure mode I loading at higher opening velocities, a new test device is developed.
G. Hug +3 more
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Study on the Mode I Interlaminar Fracture Toughness of Multi-Directional Composite Laminates
Advanced Materials Research, 2013The double cantilever beam (DCB) test method and the modified beam theory are adopted to investigate the Mode I interlaminar fracture toughness of multi-directional composite laminates. The test procedure was developed by using a stereoscopic microscope to observe the delamination front tip and a testing machine to record the displacement and load data.
Zong Hong Xie +5 more
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Mode I interlaminar fracture toughness of commingled carbon fibre/PEEK composites
Journal of Materials Science, 1993Carbon fibre/poly (ether-ether-ketone) (PEEK) composites were fabricated from plain weave cloth using the commingled yarn of carbon fibres with PEEK filaments. The undirectional specimen was made from the warp of commingled yarn and the weft of PEEK yarn, while the two-dimensional specimen was made from commingled yarns both of the warp and the weft ...
Hogyu Yoon, Kiyohisa Takahashi
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