Material selection Strategies for Environmental-Based Fatigue Design
Year: 2009
Editor: Norell Bergendahl, M.; Grimheden, M.; Leifer, L.; Skogstad, P.; Lindemann, U.
Author: Burvill, Colin Reginald; Leary, Martin; Sciavone, Francesco
Series: ICED
Section: Design for X, Design to X
Page(s): 321-332
Abstract
Environmental imperatives require that the environmental consequence of material selection be minimized. This can be achieved by assessing the relative environmental impact of the candidate materials. However, limitations of traditional material selection tools may result in non-optimal outcomes for fatigue-limited applications. Fatigue-limited material selection procedures presented in the literature to evaluate the environmental impact for infinite-life design are not directly suited to finite-life design. In response to this deficiency, a novel design tool has been developed to allow the relative environmental performance of candidate materials to be presented graphically as a function of the associated fatigue life. This outcome enables environmental impact to be minimized for fatigue-limited scenarios by: assisting the application of the finite-life design philosophy, which can enable significant mass reduction over infinite-life design / allowing the relative environmental impact of the candidate materials to be evaluated early in the design life cycle.
Keywords: Material selection, finite life, design for fatigue, design for environment, light alloys