全部 标题 作者
关键词 摘要

OALib Journal期刊
ISSN: 2333-9721
费用:99美元

查看量下载量

相关文章

更多...

斜纹机织碳纤维/环氧树脂复合材料性能及其在电动汽车轻量化设计中的应用

, PP. 83-88

Keywords: 斜纹机织复合材料,三维本构模型,碳纤维,电动汽车,轻量化

Full-Text   Cite this paper   Add to My Lib

Abstract:

采用均质法和单胞有限元法,研究了斜纹机织碳纤维/环氧树脂复合材料的三维本构模型,并应用于轻量化电动汽车结构的设计计算中。通过光学显微镜观测获得T300碳纤维/环氧树脂复合材料层合板细观结构几何参数,依据参数建立了代表体积元的几何模型;结合有限元分析方法与层合板理论对代表体积元模型进行受力分析,获得了复合材料三维本构模型参数,并运用单向拉伸与三点弯曲物理试验对所建立的本构模型进行了验证;通过二次开发,把该三维本构模型用于轻量化电动汽车结构件的设计中,并根据汽车安全测试标准对所设计的结构进行了强度校核。研究表明:运用所建立的三维材料本构模型进行的仿真实验结果与真实拉伸和弯曲试验结果相吻合,误差分别为4.04%和7.79%,可用于轻量化结构的设计;研究开发的电动汽车,轻量化效果明显,在满足车身强度要求下整车质量减轻了12%。

References

[1]  Fuchs E R H, Field F R, Roth R, et al. Strategic materials selection in the automobile body: Economic opportunities for polymer composite design [J]. Composites Science and Technology, 2008, 68(9): 1989-2002.
[2]  杜善义. 先进复合材料与航空航天 [J]. 复合材料学报, 2007, 24(1): 1-12. Du Shanyi. Advanced composite materials and aerospace engineering [J]. Acta Materiae Compositae Sinica, 2007, 24(1): 1-12.
[3]  燕 瑛, 楼 畅, 成传贤, 章怡宁, 杨 旭. 机织复合材料力学性能的细观分析与实验研究 [J]. 复合材料学报, 2001, 18(2): 109-113. Yan Ying, Lou Chang, Cheng Chuanxian, Zhang Yining, Yang Xu. Micromechanical analysis and experimental evaluation of property of woven composite materials [J]. Acta Materiae Compositae Sinica, 2001, 18(2): 109-113.
[4]  彭超义, 肖加余, 曾竟成, 江大志. 单向带/平纹布混杂铺层层合板极限强度研究 [J]. 航空动力学报, 2008, 23(3): 557-562. Peng Chaoyi, Xiao Jiayu, Zeng Jingcheng, Jiang Dazhi. Investigation on the ultimate strength of unidirectional tapes and plain cloth hybrid laminates [J]. Journal of Aerospace Power, 2008, 23(3): 557-562.
[5]  于 平, 周 平, 吴承伟, Seabrooks L. 二维平纹编织复合材料压缩力学行为研究 [J]. 计算力学学报, 2008, 25(2): 224-228. Yu Ping, Zhou Ping, Wu Chengwei, Seabrooks L. Analysis of compressive mechanical behaviors of 2D plain woven composites [J]. Chinese Journal of Computational Mechanics, 2008, 25(2): 224-228.
[6]  Peng X Q, Cao J. A continuum mechanics-based non-orthogonal constitutive model for woven composite fabrics [J]. Composites Part A, 2005, 36(6): 859-874.
[7]  Peng X Q, Cao J, Chen J, et al. Experimental and numerical analysis on normalization of picture frame tests for composite materials [J]. Composites Science and Technology, 2004, 64(1): 11-21.
[8]  Lee S K, Byun J H, Hong S H. Effect of fiber geometry on the elastic constants of the plain woven fabric reinforced aluminum matrix composites [J]. Materials Science and Engineering A, 2003, 347(1/2): 346-358.
[9]  Nicoletto G, Riva E. Failure mechanisms in twill-weave laminates: FEM predictions vs. experiments [J]. Composites Part A, 2004, 35(7/8): 787-795.
[10]  Ng S P, Tse P C, Lau K J. Numerical and experimental determination of in-plane elastic properties of 2/2 twill weave fabric composites [J]. Composites Part B, 1998, 29(6): 735-744.

Full-Text

Contact Us

service@oalib.com

QQ:3279437679

WhatsApp +8615387084133