Optimizing the design of the tubular guide of polymeric layered composite material

Abstract

Background. Tubular guides are widely used in products of general and special engineering. There is an urgent need to improve their technical and operational characteristics. The main requirements for tubular guides are high strength, rigidity, reliability and low weight. The emergence of new high-strength synthetic fibers creates the prerequisites for a qualitative leap in the improvement of such structures. The technique for designing tubular guides made of polymeric layered composite materials differs significantly from the technique for designing steel guides. The purpose of the work is to develop a methodology for the optimal design of tubular guides made of polymeric layered composite materials. Materials and methods. Polymer layered composite materials with unidirectional and woven layers of carbon fibers were chosen as the investigated materials. When developing the technique, methods of optimal design, methods of mechanics of a deformable solid body, methods of mechanics of composites were used. Results. A technique has been developed for the optimal design of tubular guides made of polymeric layered composite materials, including the solution of a number of particular problems. The content of the methodology is revealed by an example. Conclusions. The method of optimal design of tubular guides made of polymeric layered composite materials differs significantly from the method of designing steel guides in the number, sequence, and content of particular tasks to be solved. The main tasks that are part of the design methodology are sensitivity analysis, multicriteria optimization, robustness assessment, and reliability analysis.

Keywords

• tubular guide
• polymer layered composite materials
• woven layer
• unidirectional layer
• strength
• rigidity
• reliability
• mathematical models of materials
• stress-strain state
• optimization