Carbon fiber winding reinforcement/strengthening composite process for magnesium alloy tubular parts based on chunked design

doi:10.19936/j.cnki.2096-8000.20260628.009

Abstract

Abstract: To solve the problem of integrated forming of complex tubular parts in the fields of automobiles, aerospace, etc., the concept of composite forming process for block-type metal tubular parts with carbon fiber winding reinforcement is proposed. That is, the complex tubular parts products are first divided into tubular profile modules of different specifications through topological optimization, then the modules are glued and combined, and finally local reinforcement and connection reinforcement of the tubular parts are realized through carbon fiber winding. Among them, the mapping relationship between the carbon fiber winding process parameters and the local performance and connection performance of the tube is the key problem to be solved. Based on this, experimental studies were carried out on carbon fiber wound magnesium alloy tubes. The main conclusions are as follows: at the same angle, with the increase of the number of layers(2~5 layers), the peak load, total energy absorption, and specific energy absorption increased. When winding 5 layers, the specific energy absorption of axial compression increased by 177% and the peak load increased by 38% compared with the bare pipe. Under the same number of layers, small angles(±30°) enhanced the axial compression and three-point bending properties, while large angles(±90°) improved the transverse compression, indentation, and torsional resistance, providing a basis for the precise regulation of the bearing performance of the pipes. Secondly, the “geodesic-non-geodesic” collaborative fiber winding reinforcement was adopted for the connection structure of the pipe components to solve the problems of fiber slippage and stress concentration. It was found that carbon fiber could significantly improve the bearing capacity and energy absorption characteristics of the connection structure. The research results verified the engineering feasibility of the proposed forming process concept.

Key words: chunked design, magnesium alloy tube, carbon fiber reinforced composites, fiber winding, lightweight

CLC Number:

TB332

LI Shuaibing, GUAN Zhiping, SONG Jiawang, WANG Guiying, REN Mingwen. Carbon fiber winding reinforcement/strengthening composite process for magnesium alloy tubular parts based on chunked design[J]. COMPOSITES SCIENCE AND ENGINEERING, 2026, 0(6): 74-87.

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