Abstract
The damage behavior caused by the low-energy impact on thickness-reinforced carbon/carbon (C/C) laminates was investigated. The C/C laminates were fabricated using isothermal chemical vapor infiltration (CVI) processes under vacuum. A drop weight impact testing was carried out on the laminates. The damages on the C/C laminates were examined using radiography, scanning electron microscopy, optical microscopy and strain analysis. The compressive strength of C/C laminates was observed to increase both before and after impact due to stitching reinforcement in the thickness direction. Through-thickness stitching interrupted delamination propagation and increased the damage tolerance of laminates more than a factor of two.
Original language | English |
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Pages (from-to) | 3033-3036 |
Number of pages | 4 |
Journal | Carbon |
Volume | 42 |
Issue number | 14 |
DOIs | |
State | Published - 2004 |
Keywords
- A. Carbon/carbon composites
- B. Chemical vapor infiltration
- C. Scanning electron microscopy
- D. Mechanical properties