Filament wound/CVD (Chemical Vapor Deposition) carbon-carbon composites have received considerable attention and application within the past few years because of their desirable characteristics suc...

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Advanced filament-wound carbon composite

Effects of Porosity on Strength of Carbon-Carbon Composites:

Dynamic fracture toughness of carbon--carbon composites

The dynamic fracture toughness of two types of carbon-carbon com posites (filament wound and felt substrate) and ATJ-S graphite was deter mined from instrumented Charpy impact tests. The resistance to crack initiation from a pre-existing flaw (notch) was examined by investigating the dynamic fracture toughness, KD, a linear elastic fracture mechanics parameter. The resistance to crack initiation and propagation was deter mined using the dynamic work-of-fracture parameter, γfD. Testing was conducted over a range of impact velocities (4.0-202.8 in/sec), and the parameters KD and γfD were found to be strongly sensitive to impact velocity for all three materials. As expected, the dynamic fracture tough ness of the highly anisotropic filament wound carbon-carbon composite was dependent on filament orientation.

Advanced filament-wound carbon composite

Citations

Effects of Porosity on Strength of Carbon-Carbon Composites:

Dynamic fracture toughness of carbon--carbon composites

References

Effects of Porosity on Strength of Carbon-Carbon Composites:

The Dynamic Fracture Toughness of Carbon-Carbon Composites

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