Procedure for zone winding of extended‐length netted composite shells

摘要

AbstractThe subject of this paper is the extended‐length netted wound composite shells operating in cantilever loading conditions. The winding method that enables the attainment of various thicknesses of the netted shell zonewise is discussed. The distinguishing feature of this formation is the introduction of the sectional expansion mandrel into the production process. The efficiency of the elaborated method is based on the known dependence of the composites' mechanical properties on the tension of the reinforcing filler. On completion of winding, the blank is heated and, with the mandrel sections moved apart in the axial direction, the required level of fiber tension is created in each zone. The improved quality of the material enables increasing of the load‐carrying capacity of the items at the simultaneous reduction of their mass. Use of the procedure is most expedient for the manufacture of items from high‐modulus reinforcing materials. The field of application is the production of vital shell structures, such as helicopter tail booms, masts of vessels, and power transmission line supports. © 1993 John WileySon