Fatigue and fracture behavior in notched specimens of C/C composite with fine-woven carbon fiber laminates

Murdani, Anggit; Makabe, Chobin; Fujikawa, Masaki

doi:10.1016/j.carbon.2009.08.003

Cited by 15 publications

(31 citation statements)

References 19 publications

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“…As the damage in the matrix expanded over a large area, the fatigue limit σ w became lowest in the case of blunt-notch specimens. 1,2 The shear deformation and succeeding behavior of carbon fiber breakage is related to the fiber constraint. 2,3 The tendency of fatigue lives in present cases was more related to the fracture constraint 2 than the stress concentration.…”

Section: Crack Propagation and The Slit Configuration Of C/c Compositesmentioning

confidence: 99%

“…1 It has low density compared to metallic materials, and therefore, very light-weight designing is possible using this material. In recent years, research has been performed to analyze various mechanical properties.…”

Section: Introductionmentioning

confidence: 99%

“…In recent years, research has been performed to analyze various mechanical properties. [1][2][3][4][5] is still inadequate to establish various design criteria for load-bearing structures, especially as to the fatigue behavior.…”

Section: Introductionmentioning

confidence: 99%

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Fatigue Behavior and the Relationship Between Crack Propagation and the Slit Configuration of C/C Composites

et al. 2013

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The fatigue and fracture behavior of C/C composites fabricated using fine-woven carbon fiber laminates with α = 0/90 • direction were investigated. Also, the phenomenon of crack growth behavior and the shear damage in the fiber bundle was discussed. Slits of several sizes were cut on both sides of a test section and different sizes of slit length were chosen. The effect of the slit configuration on crack initiation and growth behavior was observed. Specimens with blunt-notches and center-holes were also used to compare the fatigue strength and crack growth behavior. Non-propagating cracks were observed and fatigue limit was defined as the maximum stress at which specimen did not break for N = 10 7 cycles stress application. The longest fatigue life was obtained in the case of specimens with shorter slits. The relationships between fatigue strengths and specimen shapes were analyzed by stress concentration, Kt, and stress intensity factor, K I . The effect of slit configuration on fatigue strength was then discussed regarding both the experimental and calculated consequences.

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Section: Crack Propagation and The Slit Configuration Of C/c Compositesmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Fatigue Behavior and the Relationship Between Crack Propagation and the Slit Configuration of C/C Composites

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“…If the material strength after manufacturing decreases in a small level, the application field of such materials will be expanded. 6) Murdani et al 7) have investigated the fatigue fracture process of machineable C/C composites with the stress ratio of R = −1. It had been shown that the fatigue fracture of a plate specimen with a slit, which was made with multiple layers of woven fabric carbon fiber bundle, proceeded with shear deformation in a limited area.…”

Section: Introductionmentioning

confidence: 99%

Effects of Fiber Directions on Strengths of Notched Specimens of C/C Composite

Tohkubo

Fujikawa

Makabe

et al. 2012

J. Soc. Mat. Sci., Japan

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“…The fatigue limit of slit specimens of C/C composites was investigated in the previous study by an experimental method [5]. Also, the effects of notch root radius on fatigue behavior of some notched specimens was investigated [6].…”

Section: Introductionmentioning

confidence: 99%