Numerical Prediction of Strength for 3D Braided Composites
-
摘要: 在实验研究和有限元分析的基础上,提出了一种经验性强度失效判据,并利用刚度预报的模型和有限元分析的结果,进一步提出了强度预报的方法.强度计算的结果表明: 预测值与拉伸实验的结果基本相符.Abstract: Based on experimental investigation and finite element analysis (FEA) of braided composites, an empirical failure criterion of strength was proposed to meet the need of engineering application. A strength prediction method of 3D braided composites was introduced by using the model of modulus prediction and the results of FEA. Numerical calculation results indicate that the predicted strength of 3D braided composites agrees quite well with the results of tensile experiment.
-
Key words:
- failure criteria /
- fiber strength /
- finite element analysis /
- composite materials
-
[1] Yang J M, Ma C L, Chou T W. Fiber inclination model of three-dimensional textile structural composites[J]. J Comp Mater, 1986, 20(5):472~484. [2]吴德隆, 郝兆平. 五向编织结构复合材料的分析模型[J]. 宇航学报, 1993,14(3):40~51. [3]孙慧玉, 吴长春, 黄传奇. 编织结构复合材料力学性能分析[J]. 航空学报, 1997, 18(4):458~461. [4]卢子兴, 冯志海, 寇长河,等. 编织复合材料拉伸力学性能的研究[J]. 复合材料学报, 1999,16(3):129~134. [5]刘振国,陆 萌,麦汉超,等.三维四向编织复合材料弹性模量数值预报[J].北京航空航天大学学报,2000,26(2):182~185. [6]姜稚清, 陈忠安. 复合材料强度[M]. 石家庄:河北科学技术出版社, 1993. [7]陈华辉, 邓海金, 李 明,等. 现代复合材料[M]. 北京:中国物资出版社, 1998. [8]王山根, 潘泽民, 邵毓俊,等. 先进复合材料力学性能与实验技术[M]. 北京:光明日报出版社, 1987.
点击查看大图
计量
- 文章访问数: 3039
- HTML全文浏览量: 245
- PDF下载量: 1111
- 被引次数: 0