Hi guys, I'm Douglas Cowie from the University of Glasgow and part of the chassis and suspension team. This year I am doing my teams testing of the Impact Attentuator by using quasi static testing.

My query is regarding rule T3.22.11 which appears to have been updated from the 2014 rules:
"... The anti-intrusion plate must be
attached to a structurally representative section of the intended chassis that extends a minimum of
50.8mm (2 inches) away from the Front Bulkhead."

Does structurally representative mean we have to use our chassis members of which there are 8, 2 coming from each node of the bulkhead? Or would we be able to test using just 4, 1 from each node for example? Is that considered structurally representative? I am assuming the rule has been changed to stop teams fully supporting their bulkhead all around for testing.

Thanks in advance.
Douglas