Damping Capacity of Metallic Materials for Automotive Industry

Abstract:

New requests from the automotive industry suppose to apply new materials with mechanical resistance to heat and vibrations and also with low weight. In order to replace plastic materials with high damping capacity a viable solution can be the metallic materials with sufficient internal friction to transform the external mechanical energy in thermal energy without affecting the microstructure or the mechanical properties of the metallic materials. In automotive applications an important role, especially in low velocity impacts, are the bumper elements. In this article possibility of copper-based shape memory alloys to fulfill the damping necessity of metallic materials is analyzed. Dynamic - mechanical analyze of few copper based shape memory alloys is realized and the results compared to proposed a better solution of Cu-based shape memory alloy for damping materials applications. The damping capacity difference between martensite and austenite like phases is also analyzed.

• Periodical: Key Engineering Materials (Volume 750)
• Pages: 164-167
• DOI: https://doi.org/10.4028/www.scientific.net/KEM.750.164
• Online since: August 2017
• Authors: Radu Cristian Crăciun, Sergiu Stanciu, Nicanor Cimpoeşu*, Ramona Cimpoeşu, Vasile Manole
• Keywords: Damping Capacity, DMA, Shape Memory Alloys

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