Material Innovations
April 2004
Taking the mystery out of material selection
It may not be as profound as e=mc2, and he may never be confused with Einstein, but John Fillion and the new equation he introduced at a panel session during the SAE 2004 World Congress takes some of the mystery out of material selection, if not out of the known universe. The Senior Manager of Chassis and Powertrain Materials Engineering at DaimlerChrysler Corp. said the FRF (Fillion Ranking Factor)—nobody else was going to name an equation after him, so he had to do it himself, Fillion joked—divides the product of tensile strength times modulus by cost times density.
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