A novel approach to predict the pin load distribution of multiple bolt-jointed composite laminate based on the circuit model

摘要

The circuit model was applied to predict the pin load distribution of composite multiple bolt-joint structure. Theload, flexibility and deformation of the mechanics model were equivalent to the current, resistance and voltage of thecircuit model, respectively. Based on the above assumption, it could be found that the Hooke's law and the deformationcompatibility equation in the origin mechanics model transformed into the Ohm's law and the voltage balance equation inthe new circuit model. This approach translated the complex model of composite multiple bolt-jointed into a simplecircuit model which consisted of some series circuits and parallel circuits. The analysis of the new circuit model hadformed n-1 independence voltage balance equations and a current balance equation, thus, the current and load of eachbolt could be calculated. In the new model, power sources which were added as required in some branch circuits couldalso simulate the clearance or interference in the origin model. Compared with the result of the multiple bolt-jointscomposite laminate test, the new approach could make an excellent performance to estimate the load distribution.© (2012) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.