Finite Element Analysis of 4-Step 3-Dimensional Braided Composite Structure under High Velocity Impact

Abstract:

The finite element method was used to simulate and analyze I-shaped beam which was made of the three-dimensional braided composite and suffered from bird impact. The models contained five braiding modes, two kinds of three-dimensional three-directional braiding and three kinds of three-dimensional six-directional braiding. Three kinds of thickness (10 mm, 15 mm and 20 mm), and all of these models were impacted by three different velocities (80 m/s, 150 m/s and 200 m/s) respectively. The bird has different mechanical properties in different velocities; therefore, different finite element models were used. Also, the stiffness of the braided composites degraded while damaged was absolutely considered. The numerical results indicated that, the capability of anti-bird impact was best when the beam was made of three-dimensional six-directional braided composites with sizes proportion of braiding yarn 1:1:1 for the four-directional, five-directional and six-directional. After analysis, the most reasonable braiding mode and structure dimension was obtained, in which condition the I-shaped beam was strong enough to resist bird impact and less weight.

• Periodical: Key Engineering Materials (Volumes 462-463)
• Pages: 289-294
• DOI: https://doi.org/10.4028/www.scientific.net/KEM.462-463.289
• Online since: January 2011
• Authors: Xi Tao Zheng, Qiang Yang, Lin Hu Gou
• Keywords: Bird Impact, Composite, Damage, I-Shaped Beam, Three-Dimensional Braiding

References

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