Structural Design Considerations for Aluminum Bumpers 770269
The 1980 requirements for bumpers limit the damage that may be sustained in 8 km/h (5 mph) pendulum and barrier impacts. This paper covers four items of interest for design of one-piece aluminum bumpers: (1) properties of alloys, (2) dent resistance, (3) beam strength, (4) relative behavior of aluminum and steel.
Static and dynamic tests are used to define the effects of yield strength and thickness on denting. Finite element calculations agree well with the results of dynamic bending tests of bumpers. Data presented also show that the strain rates during beam bending are low. Relative weights of aluminum and steel bumpers are defined.
Citation: Sharp, M., Peters, R., and Weiss, R., "Structural Design Considerations for Aluminum Bumpers," SAE Technical Paper 770269, 1977, https://doi.org/10.4271/770269. Download Citation
Author(s):
M. L. Sharp, R. M. Peters, R. B. Weiss
Affiliated:
Aluminum Co. of America
Pages: 11
Event:
1977 International Automotive Engineering Congress and Exposition
ISSN:
0148-7191
e-ISSN:
2688-3627
Also in:
SAE 1977 Transactions-V86-A
Related Topics:
Aluminum
Bumpers, fasciae and grilles
Alloys
Steel
Drag
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