ENERGY ABSORPTION CAPABILITY OF BRAIDED GLASS FIBER REINFORCED COMPOSITE TUBES WITH RECTANGULAR CROSS SECTION

Abstract

Abstract: Composite materials are widely used owing to their light weight, excellent mechanical properties and high energy absorption capability. Previous studies show that energy absorption property of composite tubes with circular cross section is superior to the tubes with rectangular cross section. Consequently, most of current researches focused on tubes with circular cross section, while it is considered that the one with rectangular cross section could be more practically used in industry. In order to investigate the energy absorption capability of two dimensional (2D) braided and three dimensional (3D) glass fiber braided composite tubes with rectangular cross section, axial crushing performance were inducted with regard to braiding angle, and multi-micro fractures in the crushing process was observed by optical microscope to analyze the crush mechanism in this study. It was found that the central crack of D type tubes is shorter than that of T type tubes, which consequently lead to higher energy absorption value as shown in the result.

Key words: energy absorption, composite tubes, rectangular cross section, three dimensional (3D), braiding angle, glass fiber

CLC Number:

TB332

XU Jing , MA Yan , YANG Yu-qiu. ENERGY ABSORPTION CAPABILITY OF BRAIDED GLASS FIBER REINFORCED COMPOSITE TUBES WITH RECTANGULAR CROSS SECTION[J]. Fiber Reinforced Plastics/Composites, 2016, 0(1): 51-57.

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