No abstract

This paper describes improvement of the active laminate in bonding strength by using the oxide film of aluminum fbr insulation ． Conventional types of the active laminates were made by hot pressing of an aluminum plate as high coe 飾 ient of the al 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 ． Therefc ｝ re a two −layer type active laminate was made by using anodized aluminum plate as high CTE and insulator material 血 stead of using GFRP ． In this study ， the effect of oxide film thickness of the aluminum plate on the fracture energy of tle two − layer type active laminate was investigated ．