期刊
THIN-WALLED STRUCTURES
卷 127, 期 -, 页码 425-433出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.tws.2017.11.052
关键词
Crashworthiness; Composite tube; Optimization; Ply angle; Dynamic impact
资金
- National Natural Science Foundation of China [11572122]
- 111 Project [B16015]
- State Key Laboratory of Mechanical Structural Strength and Vibration [SV2017-KF-20]
- Joint Centre for Intelligent New Energy Vehicle
Compared with traditional metal materials, composite materials can be better designed by changing layup condition or ply orientation to meet performance requirements. In this study, influences of stacking sequence and fiber orientation of glass fiber reinforced polymer (GFRP) circular tube on energy absorption performance were evaluated by axial quasi-static compression, drop weight tests and numerical simulation. Optimal ply angle and layup condition of composite tubes were obtained based on the finite element modeling and regression analysis. The optimization design result was validated by experiments. Drop weight tests results were analyzed and compared with quasi-static experimental results. Experimental and numerical results illustrate that proper increase of axial layups can improve the specific energy absorption of composite tubes.
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