EXPERIMENTAL INVESTIGATION ON THE MECHANICAL PROPERTIES OF THE CFRPFILAMENT WINDING HYBRID TUBES UNDER AXIAL CRUSHING

Abstract

Abstract: The main components of hydrogen storage vessel for vehicle include aluminum alloy and CFRP. This paper aims to study the failure modes of filament winding CFRP/aluminum tubes and the influence of the winding angle on the crashworthiness characteristics through the quasi-static axial compression tests. The characteristics has been compared between the single aluminum tube and hybrid tubes. It is found that the outer fiber shows the progressive brittle fracture mode and the inner aluminum failure is mainly the diamond mode. When the winding angle ranges from 30° to 60°, the PCF of all the specimens decreases while increasing the winding angle and the hybrid tubes with the winding angle of 45° have the highest EA, SEA and CFE. The energy absorption of the hybrid tubes mainly comes from the aluminum, the deformation of the CFRP and the interaction between them. This study indicates that the interaction between the CFRP and aluminum could improve the crashworthiness of single aluminum tube effectively.

Key words: filament winding, hybrid tubes, CFRP, axial compression

CLC Number:

TB332

CUI Zheng-liang, LIU Qiang, LAI Li-ping. EXPERIMENTAL INVESTIGATION ON THE MECHANICAL PROPERTIES OF THE CFRPFILAMENT WINDING HYBRID TUBES UNDER AXIAL CRUSHING[J]. Composites Science and Engineering, 2020, 0(2): 5-9.

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