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Sensing and actuating functions by shape memory alloy wires integrated into fiber reinforced plastics

Sensorische und aktorische Funktionen von Drähten aus Formgedächtnislegierung integriert in faserverstärkten Kunststoffen
 
: Senf, Björn; Mäder, Thomas; Navarro Y De Sosa, Iñaki; Bucht, Andre; Knobloch, Marcus; Löpitz, David; Drossel, Welf-Guntram

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Fulltext (PDF; )

Procedia CIRP 66 (2017), pp.249-253
ISSN: 2212-8271
Conference on Composite Materials Parts Manufacturing (CCMPM) <1, 2017, Karlsruhe>
English
Journal Article, Conference Paper, Electronic Publication
Fraunhofer IWU ()
shape memory alloy wires; SMA; fiber refinorced plastics; FRP; lightweight design; smart composite structure; Pultrusion

Abstract
Lightweight design based on fiber reinforced plastics (FRP) has potential for improvement by integration of sensors and actuators made of smart material filaments. Regarding FRP with integrated actuating shape memory alloy (SMA) wires, this paper presents important characteristics of such an adaptive composite and its components for design purposes. Beyond that, the first successful pultrusion processing of sensing SMA wires is proposed to address lightweight design mass production for safety-related applications. Measurements of this smart composite structure with strain sensor functionality proved high sensitivity compared to conventional sensors.

: http://publica.fraunhofer.de/documents/N-452446.html