TRADE OF VEHICLE BODY REPAIR - eCollege

Module 3– Unit 4
compartment or safety cell. The basic crash test is a frontal crash at
30 mile/h (48 km/h) into a fixed barrier set perpendicularly to the
car’s longitudinal axis. The collision is termed 100 per cent overlap,
as the complete front of the car strikes the barrier and there is no
offset. The main requirement is that the steering wheel must not be
moved back by more than 120mm (5in), but there is no
requirement to measure the force to which the occupants will be
subject in collision. The manufacturers use anthropometric
dummies suitably instrumented with deceleration and strain gauges
which collect relevant data on the effect of the collision on the
dummies. A passenger car side impact test aimed at reducing chest
and pelvic injuries have been legal in the USA since 1993. This
stricter standard requires that a new vehicle must pass a full-scale
crash test designed to simulate a collision at an intersection in which
a car traveling at 15 mile/h is hit in the side by another car traveling
at 30 mile/h. this teat is called an angled side-swipe: the
displacement is 27 degrees forward from the perpendicular of the
test vehicle’s main axis. The test is conducted by propelling a
movable deformable barrier at 33.5 mile/h into the side of the test
car occupied by dummies in the front and rear seats. The dummies
are wired with instruments to
predict the risk potential of
human injury.
Figure 16: Wind Tunnel Testing of a Prototype
Figure 17: Wind Tunnel Testing of a Prototype
Vehicle Body Repairs - Phase 2 33