A novel structure of woven composite pressure pipes and its multi-scale analysis

Abstract

A novel structure of woven composite pressure pipes (WCPP) is designed in this paper. Based on the overall geometry structure of woven preform, the representative volume unit (RVU) is established. The effective elastic constants and the mechanical properties of the woven composite layer are predicted by a multi-scale method, and the failure properties are simulated. Compared with filament-wound pressure pipes (FWPP), the WCPP can effectively improve the overall mechanical properties of the composite pressure pipes, and it can promote the further application of composite pressure pipes.

Keywords:

• woven composites
• pressure pipes
• filament-wound
• multi-scale method
• effective elastic constant
• representative volume unit

Disclosure statement

No potential conflict of interest was reported by the authors.

Table 1. The Nomenclature in the representative volume unit.

Additional information

Funding

This work was supported by the National Natural Science Foundation of China [grant number 11271234] and the Shandong Provincial Science Foundation [grant number ZR2017MA028].