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Metal Foams as Energy Absorbers for Automobile Bumpers
ISSN: 0148-7191, e-ISSN: 2688-3627
Published February 01, 1972 by SAE International in United States
Annotation ability available
Evaluations of aluminum foams show they can be efficient energy absorbers. They are especially interesting because they have virtually no rebounding characteristics. The load-compression response characteristics of the foam can be controlled by variations of alloy composition and foam density, thereby controlling foam strength and ductility. This makes foamed metals attractive candidates for a number of automotive energy-absorption applications.
The energy-absorption properties of a number of aluminum alloy foams have been studied under low and medium speed impact, up to 25 mph. The foam density, volume, and size required for a 5 mph “single shot” impact shock absorber have been determined for two automotive weight classes.
Nonshearing, columnar, high-density foam structures have been developed to withstand basal compressive loads. These columns have potential for multi-impact shock-absorbing applications.
Work is currently under way to define foamed aluminum properties and design required for use in bumpers for 50 mph barrier and pole impacts.
|Journal Article||Experimental and FE Analysis of Quasi-Static Bending of Foam-Filled Structures|
|Technical Paper||The Recycling of the Painted Bumpers of PPE/PA Alloy|
CitationNiebylski, L. and Fanning, R., "Metal Foams as Energy Absorbers for Automobile Bumpers," SAE Technical Paper 720490, 1972, https://doi.org/10.4271/720490.
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