Experimental study of the deformation performance of composite beams with SMA sheet actuators adhered on the surface

doi:10.19936/j.cnki.2096-8000.20220328.012

Abstract

Abstract: Adhering SMA sheet actuators to the surface of composite structures to make deformable structures has many advantages, but there are also problems in ensuring the quality of the bonding and designing the allowable reversible strain. In this paper, we firstly treat the surface of SMA sheets with suitable infrared laser parameters, then SMA sheet actuators are obtained by introducing pre-strain, followed by adhering them to the upper surface of the composite plate beams to produce deformable composite beams. The deformation performance of composite beams with different pre-strain is investigated experimentally. It is shown that a suitable laser surface treatment can make the composite beam obtain a greater deformation capability without the failure of the adhesive layer. However, with the increment of pre-strain, the adhesive layer of the composite beam will still undergo large area cohesive damage during the actuation process.

Key words: SMA sheet actuator, adhesive bonding, laser surface treatment, deformable composite beam, composites

CLC Number:

TB332

LIN Zai-wei, YUAN Guo-qing. Experimental study of the deformation performance of composite beams with SMA sheet actuators adhered on the surface[J]. COMPOSITES SCIENCE AND ENGINEERING, 2022, 0(3): 81-86.

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