Experimental and numerical investigation of the transverse impact damage and deformation of 3-D circular braided composite tubes from meso-structure approach

Three-dimensional braided composite materials have been widely applied to engineering structure manufacturing. It is of a great importance to characterize the impact damage of the three-dimensional braided composite under various temperatures for optimizing the engineering structure. Here we conducted transverse impact deformation and damage of three-dimensional braided composite beams with different braiding angles at room and elevated temperatures. A split Hopkinson pressure bar with a heating device combined with high-speed camera was employed to test multiple transverse impact behaviors and to record the impact deformation developments. The results indicated that failure load, initial modulus, and energy absorption decreased with the increase of temperature, whereas the deformation increased slightly with elevated temperatures. We found that the impact brittle damages occurred earlier and the local adiabatic temperature raised higher when the temperature is lower than the glass transition temperature (Tg) of epoxy resin. While above the Tg, the impact ductile damages occurred later and the local temperature raised lower. The thermal stress distribution along the braiding yarn leads to cracks propagation in yarn direction. Part of the impact energy absorptions converted into thermal energy. In addition, the beam with larger braiding angle has high damage tolerance and crack propagation resistance.

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Finite element analyses on transverse impact behaviors of 3-D circular braided composite tubes with different braiding angles

Composites Part A Applied Science and Manufacturing ◽

10.1016/j.compositesa.2015.09.012 ◽

2015 ◽

Vol 79 ◽

pp. 52-62 ◽

Cited By ~ 32

Author(s):

Haili Zhou ◽

Wei Zhang ◽

Tao Liu ◽

Bohong Gu ◽

Baozhong Sun

Keyword(s):

Finite Element ◽

Finite Element Analyses ◽

Transverse Impact ◽

Composite Tubes ◽

Braided Composite

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Transverse impact response and residual flexure characteristics of braided composite tubes: Effect of stacking sequence

Thin-Walled Structures ◽

10.1016/j.tws.2020.106900 ◽

2020 ◽

Vol 155 ◽

pp. 106900

Author(s):

Zhenyu Wu ◽

Qian Zhang ◽

Bing Li ◽

Yisheng Liu ◽

Zhongxiang Pan

Keyword(s):

Impact Response ◽

Stacking Sequence ◽

Transverse Impact ◽

Composite Tubes ◽

Braided Composite

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Transverse impact response of hybrid biaxial/uniaxial braided composite tubes

Engineering Structures ◽

10.1016/j.engstruct.2021.112816 ◽

2021 ◽

Vol 244 ◽

pp. 112816

Author(s):

Lin Shi ◽

Zhenyu Wu ◽

Xiaoying Cheng ◽

Zhongxiang Pan ◽

Yanhong Yuan

Keyword(s):

Impact Response ◽

Transverse Impact ◽

Composite Tubes ◽

Braided Composite

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Numerical and experimental study on effect of braiding angle on low-velocity transverse punch response of braided composite tube

International Journal of Damage Mechanics ◽

10.1177/1056789519881488 ◽

2019 ◽

Vol 29 (4) ◽

pp. 667-686 ◽

Cited By ~ 4

Author(s):

Yeli Jin ◽

Zhenyu Wu ◽

Zhongxiang Pan ◽

Laihu Peng ◽

Xudong Hu

Keyword(s):

Impact Loading ◽

Failure Modes ◽

Transverse Impact ◽

Low Velocity ◽

Composite Tubes ◽

Braided Composite ◽

Composite Tube ◽

Damage Initiation ◽

Braiding Angle ◽

The Impact

In this study, the performance of braided composite tubes under low-velocity transverse impact loading at mid-span was investigated using both numerical and experimental methods. Three types of braided composite tubes with different braiding angles (30°, 45°, and 60°) were manufactured. The transverse punch behavior of the tubes was examined on a low-velocity imspact test bench. A meso-level finite element model of the composite tube was also established for identifying the damage initiation and development. The numerical results showed a good correlation with the experimental data. The mechanical response including force–time histories, force–displacement histories, and fracture morphologies was compared between three types of composite tubes for analyzing the influence of braiding angle on the impact response and failure mode. Although suffering from the low bending stiffness depends on fiber volume fraction at initial impact stage, the braided tube with 30° angle engaged more portion to resist impact loading in subsequent process and thus presented higher peak loading than the one with large angle. In addition, there are distinct different failure modes between composite tubes with various braiding angles. Shear yarn breakage underneath the punch was prone to occur in 30° sample because the braiding yarn was closer to the axial direction of tube. In contrast, the resin was deboned severely from the braiding yarn and then the braiding yarn exhibits plastic deformation in 60° sample due to the stress concentration caused by the large braiding angle.

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