Journal
COMPOSITES PART B-ENGINEERING
Volume 69, Issue -, Pages 212-221Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.compositesb.2014.10.001
Keywords
Polymer-matrix composites; Vibration; Finite element analysis; Braiding
Funding
- Tianjin Municipal Science and Technology Commission [11ZCKFSF00500]
- Tianjin city Application Basis and Front Technology Research Program [13JCYBJC16800]
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The composite has found extensive applications because of its excellent mechanical properties, but most conditions for the composite serving are subjected to dynamical loads. The parameters relevant to the performance under dynamical loads are system dynamical parameters, for example natural frequency, mode shape. For this aim, the three-dimensional (3D) and four directional braided composite was exemplified to explore the effect rule of the microstructure properties on the dynamical parameters. These macroscopic parameters are employed in discrete beam models and finite element models of continuous body to determine the natural frequencies and shapes. The simulation results were compared with experimental vibration modal analysis. Our study shows that the natural frequencies and shapes computed from both the discrete beam models and finite element models fit the experimental results well. This validates both our research approach and our theory from the microstructure properties to systematical dynamical properties. (C) 2014 Elsevier Ltd. All rights reserved.
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