F.7.5 Side Impact Zone

F.7.5.1 Side Impact Zone - the region longitudinally forward of the Main Hoop and aft of the Front Hoop consisting of the combination of a vertical section up to 320 mm above the lowest point of the upper surface of the floor to the bottom surface of the floor of the monocoque and half the horizontal floor.

F.7.5.2 The Side Impact Zone must have a Buckling Modulus (EI) equal to three (3) Steel Tubes (F.3.2.1.e) that it replaces.
 

F.7.5.3  The portion of the Side Impact Zone that is vertically between the upper surface of the floor and 320 mm above the lowest point of the upper surface of the floor (see figure above) must have:
a. Buckling Modulus (EI) equivalent to minimum two (2) Steel Tubes (F.3.2.1.e) per F.4.4

  b. Absorbed energy equivalent to minimum two (2) Steel Tubes (F.3.2.1.e).

 Proof of equivalent absorbed energy is determined by physical testing per F.4.3.1 and F.4.3.3

F.7.5.4  Horizontal floor Equivalence must be calculated per F.4.4

F.7.5.5  The perimeter shear strength of the monocoque laminate must be 7.5 kN or more for a section with a diameter of 25 mm.
This must be proven by physical test completed per F.4.3.5 and the results included in the SES.