title: Reduction of free edge peeling stress of laminated composites using active piezoelectric layers.
abstract: An analytical approach is proposed in the reduction of free edge peeling stresses of laminated composites using active piezoelectric layers. The approach is the extended Kantorovich method which is an iterative method. Multiterms of trial function are employed and governing equations are derived by taking the principle of complementary virtual work. The solutions are obtained by solving a generalized eigenvalue problem. By this approach, the stresses automatically satisfy not only the traction-free boundary conditions, but also the free edge boundary conditions. Through the iteration processes, the free edge stresses converge very quickly. It is found that the peeling stresses generated by mechanical loadings are significantly reduced by applying a proper electric field to the piezoelectric actuators.
authors.affiliation: Department of Mechanical, Robotics and Energy Engineering, Dongguk University-Seoul, 30 Pildong-ro 1-gil, Jung-gu, Seoul 100-715, Republic of Korea.
authors.forename: Bin
authors.initials: B
authors.lastname: Huang
authors.affiliation: Department of Mechanical, Robotics and Energy Engineering, Dongguk University-Seoul, 30 Pildong-ro 1-gil, Jung-gu, Seoul 100-715, Republic of Korea.
authors.forename: Heung Soo
authors.initials: HS
authors.lastname: Kim
mesh_terms: D004560:Electricity; D019220:High-Energy Shock Waves; D008962:Models, Theoretical; D010969:Plastics / Q000737:chemistry* / Q000528:radiation effects; D013314:Stress, Mechanical
chemical_list: D010969:Plastics