4 ms·
>Carbon fibers is great for lightweight things that need to bend, terrible for things to be relied under pressure. Composite Overwrapped Pressure Vessels (COPV
by bumby 3y ago
>Carbon fibers is great for lightweight things that need to bend, terrible for things to be relied under pressure.
Composite Overwrapped Pressure Vessels (COPVs) are fairly common in cases where a pressurized system needs to be relatively lightweight (e.g., spacecraft). To your point though, the failure mechanisms can be hard to model.
- dmpk2k 3y agoIn that case it's taking advantage of carbon fiber's strength under tension. For a sub you have the opposite problem, which carbon fiber is very weak at.
- bumby 3y agoTake this with a grain of salt because I worked on the data acquisition side of COPV testing and not the engineering side, but my understanding is that while carbon fiber is strong in tension but weak in compression, epoxy is strong in compression but weak in tension. So the combination is thought to make a vessel strong in both.
- deleted 3y ago[deleted]
- deleted 3y ago[deleted]