CONTACT ANALYSIS FOR FIBER-REINFORCED, DELAMINATED LAMINATES WITH KINEMATIC NONLINEARITY

• 作 者: Jianghong Xue Li Zi Hong Yuan Renhuai Liu
• 机 构: Department of Mechanics and Civil Engineering, Jinan University/Key Lab of Disaster Forecast and Con
• 出 处: Acta Mechanica Solida Sinica
• 发表日期: 2013年04期
• 关键词: rectangular laminate delamination contact effect perturbation approach nonlinear

A macro-micro analytical approach for the anti-penetrating contact problem at the interfaces of the delamination in symmetrically cross-plied,fiber-reinforced rectangular laminates is presented in this paper.The laminate is simply supported and subjected to a uniform transverse load with a through-width delamination buried at the center position.A contact factor is defined to characterize the contact efect and determined using the micro-mechanics of composite material.By analyzing the kinematics of nonlinear deformation at the interfaces of the delamination,the contact force is derived.Asymptotic solutions from perturbation analysis are presented.It is found that the deformation of the laminate involves a global deflection and a local buckling.The antipenetrating contact efects are characterized by the local buckling and are intrinsic properties of the laminates,relying only on the geometries of the delamination and the material properties.Parametric analyses show that the location and size of the contact areas and the distribution of the contact force are hardly afected by the aspect ratio.

A macro-micro analytical approach for the anti-penetrating contact problem at the interfaces of the delamination in symmetrical cross-plied, fiber-reinforced rectangular laminates is presented in this paper. The laminate is simply supported and subjected to a uniform transverse load with a through-width delamination buried at the center position. A contact factor is character to the contact efect and determined using the micro-mechanics of composite material.By analyzing the kinematics of nonlinear deformation at the interfaces of the delamination, the contact force is derived Asymptotic solutions from perturbation analysis are presented. The deformation of the laminate involves a global deflection and a local buckling. The antipenetrating contact efects are characterized by the local buckling and are intrinsic properties of the laminates, relying only on the geometries. of the delamination and the material properties. Parametric analyzes show that the location and size of the contact areas and the distribution of the contact force are hardly afected by the aspect ratio.