Effect of Shear Damage on the Fracture Behavior of Carbon-Carbon Composites

2004 ◽  
Vol 84 (6) ◽  
pp. 1327-1333 ◽  
Author(s):  
Ken Goto ◽  
Hiroshi Hatta ◽  
Hirotsugu Takahashi ◽  
Hiroyuki Kawada
Keyword(s):  
Fracture Behavior ◽  
Carbon Composites ◽  
Shear Damage

Effect of Specimen Thickness on Fatigue Limit in Carbon Composites

2015 ◽  
Vol 1110 ◽  
pp. 13-18 ◽  
Author(s):  
Chobin Makabe ◽  
Takuya Nakayama ◽  
Masaki Fujikawa ◽  
Kazuo Arakawa ◽  
Ding Ding Chen
Keyword(s):  
Carbon Fiber ◽  
Fatigue Limit ◽  
Fracture Behavior ◽  
Crack Growth Behavior ◽  
Carbon Composites ◽  
Fiber Direction ◽  
Specimen Thickness ◽  
Shear Damage ◽  
Notched Specimens ◽  
Specimen Axis

The fracture behavior and fatigue limit in notched specimens of C/C composites were investigated. Also, the effect of specimen thickness on fatigue limit was discussed. Two plates of different thicknesses of plates of C/C composites using fine-woven carbon fiber laminates with α=0°/90° direction were used for testing. α is the angle between the carbon fiber direction and specimen axis. The crack growth behavior and failure mechanism of specimens are derived from the shear damage in the fiber bundle and matrix. Slits of several sizes were cut on both sides of a test section and different geometries of the specimens were prepared. Specimens with slits and blunt-notches were used to compare the fatigue strength. The fatigue limit is related to the method of making the plate of carbon composites. Large sizes of voids are observed in the case of specimens of thinner thickness. The fatigue limit was related to the void fraction, and thinner specimens showed a lower fatigue limit.

Fracture Behavior of Cross-Ply Laminates Carbon-Carbon Composites

1998 ◽  
Vol 164-165 ◽  
pp. 193-196
Author(s):  
Koji Goto ◽  
L. Denk ◽  
Hidenori Hatta ◽  
Y. Kogo ◽  
S. Somiya
Keyword(s):  
Fracture Behavior ◽  
Carbon Composites

scholarly journals Applicability of Fracture Toughness Concept to Fracture Behavior of Carbon/Carbon Composites.

1999 ◽  
Vol 42 (2) ◽  
pp. 265-271 ◽  
Author(s):  
Hiroshi HATTA ◽  
Yasuo KOGO ◽  
Hideyuki ASANO ◽  
Hiroyuki KAWADA
Keyword(s):  
Fracture Toughness ◽  
Fracture Behavior ◽  
Carbon Composites

Notch Strength and Fracture Behavior of 2-D Carbon-Carbon Composites

1993 ◽  
Vol 76 (4) ◽  
pp. 944-956 ◽  
Author(s):  
Gary E. Griesheim ◽  
Peter B. Pollock ◽  
Shing-Chung Yen
Keyword(s):  
Fracture Behavior ◽  
Carbon Composites ◽  
Notch Strength

Fracture Behavior of Carbon–Carbon Composites with Cross-Ply Lamination

2004 ◽  
Vol 38 (17) ◽  
pp. 1479-1494 ◽  
Author(s):  
Hiroshi Hatta ◽  
Lars Denk ◽  
Takashige Watanabe ◽  
Ichiro Shiota ◽  
Mohamed S. Aly-Hassan
Keyword(s):  
Fracture Behavior ◽  
Carbon Composites

Strength and fracture behavior of two-, three- and four-dimensionally reinforced carbon/carbon composites

2010 ◽  
Vol 527 (7-8) ◽  
pp. 1835-1843 ◽  
Author(s):  
Sourav Sarkar ◽  
Sweety Kumari ◽  
V.G. Sekaran ◽  
R. Mitra
Keyword(s):  
Fracture Behavior ◽  
Carbon Composites

Quasi-static and dynamic compressive fracture behavior of carbon/carbon composites

Carbon ◽  
2008 ◽  
Vol 46 (4) ◽  
pp. 699-703 ◽  
Author(s):  
Yuan Qinlu ◽  
Li Yulong ◽  
Li Hejun ◽  
Li Shuping ◽  
Guo Lingjun
Keyword(s):  
Fracture Behavior ◽  
Carbon Composites ◽  
Compressive Fracture

Effect of Stress Concentration on Tensile Fracture Behavior of Carbon-Carbon Composites

1998 ◽  
Vol 32 (13) ◽  
pp. 1273-1294 ◽  
Author(s):  
Yasuo Kogo ◽  
Hiroshi Hatta ◽  
Hiroyuki Kawada ◽  
Terufumi Machida
Keyword(s):  
Stress Concentration ◽  
Fracture Behavior ◽  
Tensile Fracture ◽  
Carbon Composites

Fiber strength utilization in carbon/carbon composites: Part II. Extended studies with pitch- and PAN-based fibers

1995 ◽  
Vol 10 (3) ◽  
pp. 609-624 ◽  
Author(s):  
Rafael J. Zaldivar ◽  
Gerald S. Rellick ◽  
J.M. Yang
Keyword(s):  
Heat Treatment ◽  
Fracture Behavior ◽  
Fiber Strength ◽  
Fiber Composite ◽  
Carbon Composites ◽  
High Modulus ◽  
Fragmentation Test ◽  
Fiber Matrix ◽  
The Difference ◽  
Very High

Measurements of fiber strength utilization (FSU) in unidirectional carbon/carbon (C/C) composites as a function of heat-treatment tempcrature (HTT) have been extended beyond the original group of DuPont pitch-based E-series fibers to include additional pitch- and PAN-based fibers. Fibers and composites were characterized by tensile strength, optical microscopy, SEM, fiber preferred orientation, and a single-fiber composite (SFC) fragmentation test to provide a relative measure of fiber-matrix interfacial shear strength (IFSS). Results show that fracture behavior and FSU are dominated by the degree of fiber-matrix bonding, as inferred from microscopic observations and measurements of IFSS. In the very high modulus pitch-based fibers, the behavior of the F,130 is strikingly different from that of the Amoco and Nippon Oil fibers, in that it retains good bond strength and high FSU even with HT to 2400 °C, in contrast to the other very high modulus pitch-based fibers that are already weakly bonded at the lowest HTT of 1100 °C. All PAN-based fibers and lower modulus pitch fibers are characterized by strong bonding, brittle fracture, and low FSU for the 1100 °C HTT. Subsequent heat treatment of these composites to 2150 and 2400 °C, in most cases, results in significant recovery of FSU, suggesting an optimum IFSS for each composite. It is suggested that the difference in bonding between the pitch-based E-series and P-series may be related to the similarity in fine structure between the E-fibers and high-modulus PAN-based fibers.

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