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Development of the Liteflextm Suspension Leaf Spring
ISSN: 0148-7191, e-ISSN: 2688-3627
Published February 01, 1982 by SAE International in United States
Annotation ability available
Emphasis on vehicle weight reduction in 1977 justified taking a new look at composite springs.
Many reinforcement and matrix resin materials were considered before the combination of fiberglass and epoxy in a filament winding process was selected.
Prior to introduction on the first production application, three and one-half years of testing were conducted accumulating 58 million laboratory fatigue cycles and over five million vehicle test kilometers.
The 3.6 Kg composite spring replaced an 18.6 Kg ten leaf steel spring.
In addition to mass savings, the Liteflextm composite spring offers the potential for improvement in durability, ride, isolation and packaging.
CitationKirkham, B., Sullivan, L., and Bauerle, R., "Development of the Liteflextm Suspension Leaf Spring," SAE Technical Paper 820160, 1982, https://doi.org/10.4271/820160.