How (not to) Perform A Crash Test

"tromoly" (tromoly) 11/02/2015 at 19:19 • Filed to: None

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The source video is long gone, but this gif is an FSAE team from somewhere non-USA testing their impact attenuator by driving their running car into the bucket of a backhoe while the driver is wearing no safety equipment aside from the harness. The number of things wrong here is a lot, don’t try to replicate this.

Blondude > tromoly 11/02/2015 at 19:25

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That looked like it hurt.

SVTyler > tromoly 11/02/2015 at 19:28

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I thought FSAE people were supposed to be smart.

gmporschenut also a fan of hondas > tromoly 11/02/2015 at 19:30

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CCC (formerly CyclistCarCoexist) > gmporschenut also a fan of hondas 11/02/2015 at 19:37

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I learned so many things from Calvin and Hobbes, like how babies were made, “drop dead”, and “bimbo”

tromoly > SVTyler 11/02/2015 at 19:38

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I’m pretty sure the team is from India, seeing how teams from that country interact with the rest of the FSAE world it’s amazing anything gets built in the first place. Example:

SVTyler > tromoly 11/02/2015 at 19:48

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Just found a pic of their chassis:

As a ME student who barely got a B in statics I can confidently say that’s what we in the industry call a complete fucking deathtrap.

At least they’re trying?

tromoly > SVTyler 11/02/2015 at 19:54

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The only thing worse is asking questions that are basically “I need this concept. Give me numbers.”

BaconSandwich is tasty. > SVTyler 11/03/2015 at 00:19

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Never underestimate an engineer(ing student).

TheD0k_2many toys 2little time > tromoly 11/03/2015 at 00:19

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well ive done that faster and with no harness.

snowmobiles are really fun tho

tromoly > TheD0k_2many toys 2little time 11/03/2015 at 02:04

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This isn’t an e-penis contest, plus who brags about crashing?

TheD0k_2many toys 2little time > tromoly 11/03/2015 at 03:00

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im just saying that thats not a very fast or hard crash. especially strapped in with a harness

tromoly > TheD0k_2many toys 2little time 11/03/2015 at 03:59

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The gif is much slower than in reality, the car was going atleast 15mph if not faster, sadly the source video no longer exists so there’s no way to get an accurate number.

Per FSAE regulations, the impact attenuator must absorb at least 7,350 Joules of energy. Its deceleration was around an average of 15Gs, no matter how you slice it, that’s a of force being dumped into the body.

StndIbnz, Drives a MSRT8 > tromoly 11/03/2015 at 08:16

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I think I remember this from a few years ago when I was in FSAE, unless its another idiot team.......

Its amazing how easy it is to test the crash block. Surprisingly, there are companies that do it.....

tromoly > StndIbnz, Drives a MSRT8 11/03/2015 at 14:31

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It’s the same team, I really wish the video existed because it showed the violence a lot better.

DrJohannVegas > tromoly 11/04/2015 at 19:19

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I remember this video, and Michael Royce’s discussion thereof...

tromoly > DrJohannVegas 11/04/2015 at 19:44

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That was well before I joined FSAE.com, I think I saw that thread but not sure.

DrJohannVegas > tromoly 11/04/2015 at 19:55

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It was also a point of discussion at the event, at least away from the students...