Abstract
This paper describes improvement of the active laminate in bonding strength by using the oxide film of aluminum for insulation. Conventional types of the active laminates were made by hot pressing of an aluminum plate as high coefficient of thermal expansion (CTE) material, a unidirectional carbon fiber reinforced plastics (CFRP) prepreg as low CTE and electric resistance heater, and a unidirectional glass fiber reinforced plastics (GFRP) prepreg as low CTE and insulating material. However, the insulating layer reduces actuation capability of the active laminates. Therefore a two-layer type active laminate was made by using anodized aluminum plate as high CTE and insulator material instead of using GFRP. In this study, the effect of oxide film thickness of the aluminum plate on the fracture energy of the two-layer type active laminate was investigated.
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