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Light Truck Frame Joint Stiffness Study Phase 1 Final Report

Light Truck Frame Joint Stiffness Study Phase 1 Final Report

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SENSITIVITY STUDY<br />

C-<br />

Channel<br />

Gage<br />

Crossmember<br />

Tube<br />

Gage<br />

Inner Box<br />

Bracket<br />

Gage<br />

Back<br />

Bracket<br />

Gage<br />

Bottom<br />

Angle<br />

Bracket<br />

Gage<br />

Crossmember<br />

Tube<br />

Diameter<br />

Inner Box<br />

Bracket<br />

Width<br />

Rail<br />

Height<br />

Rail Width<br />

Figure 24: Main Effects Plot for <strong>Joint</strong> 3: Tube Through Tube Partially Boxed Section Fore/Aft<br />

Bending <strong>Stiffness</strong> K θz<br />

Lower<br />

Crossmember<br />

Gage<br />

Inner<br />

Side<br />

Rail<br />

Gage<br />

Outer<br />

Side<br />

Rail<br />

Gage<br />

Upper<br />

Crossmember<br />

Gage<br />

Crossmember<br />

End<br />

Width<br />

Crossmember<br />

Attache<br />

d End<br />

Width<br />

Flange<br />

Width<br />

Rail<br />

Width<br />

With<br />

Crossmember<br />

Rail<br />

Width<br />

Rail<br />

Height<br />

Lower<br />

Flange<br />

Width<br />

Figure 25: Main Effects Plot for <strong>Joint</strong> 4: Alligator to Box Section Vertical Bending <strong>Stiffness</strong> K θx<br />

<strong>Report</strong>: A/SP-005-1 <strong>Light</strong> <strong>Truck</strong> <strong>Frame</strong> <strong>Joint</strong> <strong>Stiffness</strong> <strong>Study</strong> 54

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