Neck injury criteria.
S13.2 Neck injury criteria. A vehicle certified to this alternative test requirement shall, in addition to meeting the criteria specified in S13.1, meet the following injury criteria for the neck, measured with the six axis load cell (ref. Denton drawing C1709) that is mounted between the bottom of the skull and the top of the neck as shown in Drawing 78051218, in the unbelted sled test:
(a) Flexion Bending Moment (calculated at the occipital condyle)—190 Nm. SAE Class 600.
(b) Extension Bending Moment (calculated at the occipital condyle)—57 Nm. SAE Class 600.
(c) Axial Tension—3300 peak N. SAE Class 1000.
(d) Axial Compression—4000 peak N. SAE Class 1000.
(e) Fore-and-Aft Shear—3100 peak N. SAE Class 1000.