sasjag Wrote:
> it will always be more preferable to have an
> impact with a wall side on, purely because theres
> a bigger surface area to abosrb teh impact, again,
> simple physics...
Thanks for dumbing down physics in order to prove your argument. Here's some issues that you've neglected that you might consider useful:
1. Objects have a strong and weak direction. This is common in many objects, as we do not drive cubes. Take a piece of paper and roll it into a cylinder. Now, try to compress the cylinder from the ends and crush it. Take a new piece of paper and roll it into a cylinder. Now, try to bend it. You should notice that it is easier to bend the cylinder than to crush it by compression. This leads to the next point:
2. Many forms of steel tend to be weaker in shear than in compression or tension. A rigid bar of steel, such as the side of a car chassis, may fail suddenly by shearing when t-boned. Alternatively, because of the greater area of a car's side, greater moments are generated for any given force.
3. The purpose of crumple zones is to dissipate the energy of an impact over a greater period of time. Furthermore, the driver is far closer to the side of the vehicle than the front.
This is why many drivers are killed from side impacts. Within the last 2 years, 2 V8 Supercar drivers have died because of side impacts which arguably, may have been survivable had they collided head on (both were killed by trauma to the head/chest). In fact, Chris Alajajian slid sideways into the side of Mark Porter's car, which by your theory should have been the safest possible way to crash.