According to the deformation or fracture caused by uneven loads on the structural connection

the smart structure with sensible and regulative functions has been proposed to be used in bolt groups.The smart structure is constituted with the auto-even-load connecting component made of the shape memory alloy material.The mechanical behavior of the auto-even-load component in the bolt groups is analyszed.Its auto-even-load and the regulative principle to prevent the fracture are also studied.