New Smart Material Bends Under Internal Heat Source
“The main advantage of the CBCM (controlled behavior composite material) is that the entire structure is active, compared to classical actuators used in this kind of structures, such as shape memory alloys (SMA) or piezoelectric materials, so there is no problem of junction and connection between the actuator and the structure,” coauthor Gildas L’Hostis of LPMT told PhysOrg.com. “Moreover, the load that can carry the structure is much greater than the one carried by an SMA or piezoelectric material because the performances are not as limited by the rigidity of the composite structure. A third advantage is the simplicity of use - directly on DC current with a variator.”
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