Composite Load-Bearing Member with Helical Fiber Shell

The patent employs composite materials consisting of a core structure combined with a shell containing both longitudinal and oblique reinforcing fibers. This composite construction provides enhanced shear and bending resistance while maintaining structural efficiency, directly resolving the contradiction between strength requirements and structural complexity.

The patent implements local quality by orienting reinforcing fibers in specific directions (longitudinal and oblique) at different locations within the shell. The longitudinal fibers provide strength along the member axis, while oblique fibers enhance shear resistance, creating locally optimized reinforcement patterns that address specific mechanical property requirements without uniformly increasing overall complexity.

The patent introduces oblique fibers at angles to the longitudinal axis, adding a dimensional aspect to the fiber reinforcement. This oblique orientation creates a three-dimensional reinforcement pattern within the shell that enhances mechanical properties while maintaining a relatively simple manufacturing approach through wrapped construction methods.

The oblique reinforcing fibers are wrapped in a helical or curved pattern around the core, creating a continuous curved reinforcement path. This wrapping approach simplifies manufacturing compared to laying individual straight fibers, as the continuous wrap can be applied in a single operational pass while still providing enhanced mechanical properties through the oblique fiber orientation.