Smart Alloys for Automotive Bumpers

Abstract:

Bumper beam absorbs the accidental kinetic energy by deflection in low-speed impact and by deformation in high-speed impact. Based on the last years necessity of lighter materials and safer usage of vehicles we try to come with a new class of materials for bumper systems. Analyze of metallic materials is cheaper when the analyze take place on a computer avoiding the metallic loss or energy consume. We present few results obtained in Catia software about the behavior of some metallic materials under external solicitations in function of the mechanical properties of metallic elements, geometry of the element, restrains and solicitation points. Shape memory alloy are smart materials that can use the external mechanical energy damping to thermal energy in bumper applications. In martensite to austenite domain we observe an increase of damping mechanical capacity with possible applications in bumper systems.

• Periodical: Applied Mechanics and Materials (Volumes 809-810)
• Pages: 578-583
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.809-810.578
• Online since: November 2015
• Authors: Radu Cristian Crăciun, Sergiu Stanciu, Ramona Cimpoeşu, Florin Săndulache*, Adela Ioana Ursanu Dragos, Mihai Axinte
• Keywords: Automotive, Bumpers, Smart Alloys

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