关键词: 织物衬垫, 细观模型, 拉伸试验, 有限元仿真

Abstract:

The properties of the fabric liner for self-lubricating spherical plain bearings include tension property, compression property and wear property, and numerical simulations and experiment verification of the tensile properties were investigated in present article. First of all, the section testing was done, and Laser Scanning Confocal Microscope (LSCM) was used to observe the section morphology of fibers. By measuring and calculating for the profile, the geometry parameters of the fibers were obtained. The reinforcement unit-cell model of the fabric liner was built using ANSYS finite element software. Then, based on the mesomechanics of composite materials and the periodic boundary conditions, the tensile properties of the fabric liner were studied and the tensile elastic constants of the hybrid Polytetrafluoroethylene (PTFE)/Kevlar broken twill fabric liner were obtained using ANSYS. At last, comparison of the experimental results and the simulated ones shows that the error is about 20%, which is within the allowed range.