Optimization winding design of a composites intermediate shaft

The purpose of this study is to determine the correct estimation of the laminate patterns for composites intermediate shaft. The laminate patterns in the filament winding process are an important factor in determining the strength and life of the final structure. In this study, the structural safety was analyzed for the laminate patterns in four cases. In addition, this work evaluated the range of laminated angles for optimal thickness selection. The laminate patterns and the order of the layers were determined by considering the results of the finite element analysis. The shear stress equation of the hollow shaft for torsional loads showed that the thickness of the structure varied with the diameter ratio. At the maximum diameter ratio (the smallest shaft thickness), the required shear strength for the structure was 36.6 MPa. Also, the most stable stress distribution was selected at $15^{\circ }$ to $75^{\circ }$. The shear modulus according to the laminated angle was considered to give the best strength value when stacked at $45^{\circ }$. The research results in this study suggest that the design of an optimized intermediate shaft of composite materials can be supplemented.