Hint......
It is the material of the frame that absorbs energy by deforming
The space is filled with air by default
A car crumple zone would work in the same way if the empty space was filled with bananas or fish
Skiing vs cycling
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It is the material of the frame that absorbs energy by deforming
The space is filled with air by default
A car crumple zone would work in the same way if the empty space was filled with bananas or fish
Linford
Guest
[QUOTE 2853588, member: 45"]... Hint 2... "expanded" polystyrene. Expanded.[/quote]
Crumple zones are spaces which the structure deforms into in a controlled way. That would be the (expanded) polystyrene in a lid, or a bumper on a car, or a lattice of sheet metal which folds in a given way (heating up in the process) as it dissipates the force exerted on it....not a lot different to an oil filled damper in a suspension unit.
Whilst McWobble is dancing around with his manhood on show, the reality is that it isn't rocket science, and it is fair to say whilst we elucidate in different ways, we are all here alluding to the same end (energy can neither be created or destroyed)
I think the point conveniently being missed here, is that whilst his lid did split, before the point when the load was exceeded, it was absorbing energy in a controlled fashion so it would have offered a degree of protection in his accident. It clearly didn't absorb it all, but without it, he would have likely been dead where he fell.
Crumple zones are spaces which the structure deforms into in a controlled way. That would be the (expanded) polystyrene in a lid, or a bumper on a car, or a lattice of sheet metal which folds in a given way (heating up in the process) as it dissipates the force exerted on it....not a lot different to an oil filled damper in a suspension unit.
Whilst McWobble is dancing around with his manhood on show, the reality is that it isn't rocket science, and it is fair to say whilst we elucidate in different ways, we are all here alluding to the same end (energy can neither be created or destroyed)
I think the point conveniently being missed here, is that whilst his lid did split, before the point when the load was exceeded, it was absorbing energy in a controlled fashion so it would have offered a degree of protection in his accident. It clearly didn't absorb it all, but without it, he would have likely been dead where he fell.
Linford
Guest
I've actually forgotten why you are so keen on citing a thudguard..can you recap on this one...short version please
subaqua
What’s the point
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- Leytonstone
If styrene is so good then why is my work hard hat not made from it? Maybe because it's a bit shoot at protecting the head from a substantial impact.
Linford
Guest
What is your work hat rated to ?
I've forgotten what the point of anything is since I started reading your posts.
subaqua
What’s the point
- Location
- Leytonstone
Not seen many car bumpers with 1 way valves and a damping fluid in them. Even the Volvo 740 had a corrugated plastic bit rather than fluid damping.This should be good
Linford
Guest
In the simplest form they just have a hole in them which allows the oil to flow in both directions in a controlled manner.
One way valves are to control compression and rebound independently
Linford
Guest
You've only posted on here to troll me Claudine...true to form again
I've given up hope, if that's what you mean.
subaqua
What’s the point
- Location
- Leytonstone
Haven't got access to the BS document at moment. The CIS we subscribe to doesn't hold it. Will need to go to library in work to read it.
subaqua
What’s the point
- Location
- Leytonstone
Still a valve
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