摘要
在细、宏观结合的基础上研究了三向编织复合材料的拉伸强度。首先,对实际编织结构进行恰当的几何简化;其次,建立材料的细观力学理论分析模型;最终,借助于商用有限元分析软件成功实现了编织复合材料的拉伸强度仿真分析。计算结果得到了试验的验证。在此基础上,研究了编织几何参数(编织角和轴向纤维束与编织向纤维束大小之比)对于编织复合材料拉伸强度性能的影响。分析方法对研究编织复合材料结构力学具有重要的参考价值。
The tensile strength of triaxially braided composites was studied through integrated meso/macro-mechanical analysis.First,the braiding architecture was simplified appropriately.Secondly,the meso-mechanical model was proposed.Finally,the tensile strength of triaxially braided composites was predicted by using the commercial FEM software.The analysis method was verified with the test results.Based on the analysis method,the effects of braiding parameters （such as braiding angle,the ratio between axial yarn size and braiding yarn size） on the tensile strength were studied.This work provides valuable help in studying the structural mechanics of the braided composites.
出处
《玻璃钢／复合材料》
CAS
CSCD
北大核心
2014年第8期92-96,共5页
Fiber Reinforced Plastics/Composites
基金
国家自然科学基金(50405003)
关键词
复合材料
拉伸强度
三向编织
单胞
composites
tensile strength
triaxially braided
representative unit cell
