Document ID: chunk:federal_register_of_legislation:F2005L03990:reg:60:p1
Version: federal_register_of_legislation:F2005L03990
Segment Type: reg
Provision Reference: reg 60 (pt 1/9)
Character Range: 70120–72845

60      0.1     60     100    g  -30                dB

Annex 9

DEFINITION OF DEFORMABLE BARRIER

1.  COMPONENT AND MATERIAL SPECIFICATIONS
 The dimensions of the barrier are illustrated in Figure 1 of this annex. The dimensions of the individual components of the barrier are listed separately below.
1.1. Main honeycomb block
 Dimensions : All dimensions should allow a tolerance of  2,5 mm
 Height: 650 mm (in direction of honeycomb ribbon axis)
 Width: 1000 mm
 Depth: 450 mm (in direction of honeycomb cell axes)
 Material: Aluminium 3003 (ISO 209, part 1)
 Foil Thickness: 0.076 mm
 Cell Size: 19.14 mm
 Density: 28.6 kg/m3
 Crush Strength: 0.342 MPa +0% -10% [1/]
1.2.  Bumper element
 Dimensions: All dimensions should allow a tolerance of  2,5 mm
 Height: 330 mm (in direction of honeycomb ribbon axis)
 Width: 1000 mm
 Depth: 90 mm (in direction of honeycomb cell axes)
 Material: Aluminium 3003 (ISO 209, part 1)
 Foil Thickness: 0.076 mm
 Cell size: 6.4 mm
 Density: 82.6 kg/m3
 Crush Strength: 1.711 MPa +0% -10% 1/
1.3. Backing sheet
 Dimensions
 Height: 800 mm  2,5 mm
 Width: 1000 mm  2,5 mm
 Thickness: 2.0 mm  0.1 mm
1.4.  Cladding sheet
 Dimensions
 Length: 1700 mm  2,5 mm
 Width: 1000 mm  2,5 mm
 Thickness: 0.81  0.07 mm
 Material: Aluminium 5251/5052 (ISO 209, part 1)
1.5.  Bumper facing sheet
 Dimensions
 Height: 330 mm  2,5 mm
 Width: 1000 mm  2,5 mm
 Thickness: 0.81 mm  0.07 mm
 Material: Aluminium 5251/5052 (ISO 209, part 1)
1.6.  Adhesive:
        The adhesive to be used throughout should be a two-part polyurethane (such as Ciba-Geigy XB5090/1 resin with XB5304 hardener, or equivalent).
2.  ALUMINIUM HONEYCOMB CERTIFICATION
 A complete testing procedure for certification of aluminium honeycomb is given in NHTSA TP-214D. The following is a summary of the procedure that should be applied to materials for the frontal impact barrier, these materials having a crush strength of 0.342 MPa and 1.711 MPa respectively.
2.1. Sample locations
 To ensure uniformity of crush strength across the whole of the barrier face, eight samples shall be taken from four locations evenly spaced across the honeycomb block. For a block to pass certification, seven of these eight samples shall meet the crush strength requirements of the following sections.
 The location of the samples depends on the size of the honeycomb block. First, four samples, each measuring 300 mm x 300 mm x 50 mm thick shall be cut from the block of barrier face material. Please refer to Figure 2 for an illustration of how to locate these sections within the honeycomb block. Each of these larger samples shall be cut into samples for certification testing (150 mm x 150 mm x 50 mm).Certification shall be based on