The rules of the challenge also require a lot of safety features, including five-point safety harness, roll bar, a crush zone
four inches from the main frame, and a battery fan that circulates at least three times per minute.
Figure 10 compares the crush zone
boundary and the 10 times initial permeability boundary of the three models.
They have developed cast aluminum connecting joints used in the crush zone
of the space frame of the new Acura NSX automobile.
As with the Pinto, the fuel tank is located behind the rear axle: a dangerously vulnerable area in the rear impact crush zone
." Chrysler LLC which makes Jeep brand vehicles is a subsidiary of Fiat.
There is also an enlarged front-end crush zone
to protect occupants as well as six airbags and stability control fitted as standard.
As the cutter head rotates, disc cutters penetrate the rock face and create a "crush zone
" through which fractures propagate.
That creates a larger "crush zone
" around the driver.
One reason is that the middle seat has a larger "crush zone
" around it.
According to UQM, the hybrid bus, which features a "low-floor, monocoque-type structure, four-wheel independent suspension that operates with no interior intrusion for axle clearance, and a front frame crush zone
to improve occupant safety in the event of a collision," has an estimated curb weight of 9,600 pounds, "which represents a mass reduction of 64 percent compared to conventional buses thereby improving passenger-carrying payload and fuel economy."
* The tank is located behind the rear axle in the vehicle's crush zone
where, in a collision, the tank is vulnerable to flying fragments.
"We tested a pre-release version of Abaqus 6.3 to examine complex contact interaction and large deformations in a rail-car crush zone
. The new general contact feature greatly simplified model preparation, and simulation results agreed very well with corresponding tests.