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Video: Strength Of Composite Panels

BCAInfoSys From , joined Dec 1969, posts, RR:
Posted (7 years 3 months 1 day 22 hours ago) and read 1384 times:

Hey guys...

I was going through some old video I had and I found this one pretty interesting. In my mind, it gives a lot of credance to the strength of composite materials. Basically, it was a video Boeing used to show customers just how strong a composite panel is. They give several people the opportunity to wind up with a mallet and a chisel and do their best to dent or damage a panel; it doesn't happen. These panels are so solid, I don't even think MENZIES could put a dent in these babies! Silly

Download it and tell me what you think. It's pretty interesting. (Sorry for the slow download speeds, the only hosting I have is the university FTP, which is quite slow. If anyone else wants to volunteer to host, I'm very happy to send it to you.)

Steve

P.S. I have some other interesting Boeing videos if anyone's interested. Check this out and tell me what you think!

http://cc.usu.edu/~stephenh/CompositeDemo.mpeg

[Edited 2006-02-24 19:53:32]

6 replies: All unread, jump to last

Radelow From United States of America, joined Jul 2004, 426 posts, RR: 3
Reply 1, posted (7 years 3 months 1 day 18 hours ago) and read 1239 times:

That video is irrelevant.

1. The mallet/chisel combo wasn't easy enough to use to really get a good whack at it.

2. The panel has a void behind it so it could deflect to absorb the impact.

3. Comparing a hammer/chisel hit by a guy wearing work clothes to a another airplane, or ramp vehicle is completely ridiculous.

With that said, I don't question the strength of composites and know Boeing is confident in the strength of the stuff.

A319XFW From , joined Dec 1969, posts, RR:
Reply 2, posted (7 years 3 months 1 day 18 hours ago) and read 1203 times:

Quoting BCAInfoSys (Thread starter):
They give several people the opportunity to wind up with a mallet and a chisel and do their best to dent or damage a panel; it doesn't happen.

Is that a chisel? It looks like a rounded head cylinder to me...

Quoting Radelow (Reply 2):
3. Comparing a hammer/chisel hit by a guy wearing work clothes to a another airplane, or ramp vehicle is completely ridiculous.

I agree - How would that compare to the corner of a truck for instance?

Quoting Radelow (Reply 2):
2. The panel has a void behind it so it could deflect to absorb the impact.

It depends on how rigidly the skin is attached to the stringers/frames.

But all the airlines wouldn't be buying it if they wouldn't know the answers. As I am sure they have asked the same (and more).

Boeing4ever From , joined Dec 1969, posts, RR:
Reply 3, posted (7 years 3 months 1 day 17 hours ago) and read 1152 times:

Interesting stuff. If you have any other videos, feel free to share.

I would like to see something tougher going at the panel tho. It's one thing to go at it with a chisel, let's see 'em drop something really heavy on it.

airplane

B4e-Forever New Frontiers airplane

Ruscoe From Australia, joined Aug 1999, 1410 posts, RR: 2
Reply 4, posted (7 years 3 months 1 day 16 hours ago) and read 1078 times:

Compare what would have happened if this was aluminium.

The superiority of Composites over Al in aviation is well established. The problem has been price and production/manufacture. As I've said before this is the real breakthrough that Boeing has made.

Ruscoe

Aither From South Korea, joined Oct 2004, 789 posts, RR: 0
Reply 5, posted (7 years 3 months 1 day 16 hours ago) and read 1057 times:

... and checkings and maintenance.

I would say all composite fuselage is a breakthrough in term of aircraft design, but just an improvement in term of aircraft performance, especially when considering other aircraft are using advanced alloys and quite a lot of composites as well.

Never trust the obvious

Jean Leloup From Canada, joined Apr 2001, 2106 posts, RR: 23
Reply 6, posted (7 years 3 months 1 day 15 hours ago) and read 1034 times:

Only one thing can punch through composites: Chuck Norris.

Seriously, though - while I've been very impressed in what I have read about these materials, I don't think tests like this are very relevant, except as a bit of a marketing tool.

JL

Next flight.... who knows.

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