Passive damping of composites with embedded shape memory alloy wires

NiTi alloy wires were embedded during the infusion processing of woven carbon fibre reinforced plastic (CFRP) composite plates with the purpose to passively increase their damping. Two types of NiTi wires, having the same diameter of 203 mu m, were considered, one superelastic at room temperature, the other one martensitic. For the first one, a martensitic transformation was induced by applying a pre-strain of 2.5% before embedding the wires. The coexistence of austenite and martensite should provide damping through the mobility of boundaries between the two phases. For the second type of wires, the enhancement of damping was based on the presence of martensite.


Published in:
Behavior And Mechanics Of Multifunctional Materials And Composites 2010, 7644, -
Presented at:
Conference on Behavior and Mechanics of Multifunctional and Composite 2010, San Diego, CA, Mar 08-11, 2010
Year:
2010
Publisher:
Spie-Int Soc Optical Engineering, Po Box 10, Bellingham, Wa 98227-0010 Usa
ISBN:
978-0-8194-8059-0
Keywords:
Laboratories:




 Record created 2011-12-16, last modified 2018-03-17


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