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基于弹性-塑性内聚力模型的纤维拔出界面宏观行为分析

赵玉萍 袁鸿 韩军

赵玉萍, 袁鸿, 韩军. 基于弹性-塑性内聚力模型的纤维拔出界面宏观行为分析[J]. 力学学报, 2015, 47(1): 127-134. doi: 10.6052/0459-1879-14-165
引用本文: 赵玉萍, 袁鸿, 韩军. 基于弹性-塑性内聚力模型的纤维拔出界面宏观行为分析[J]. 力学学报, 2015, 47(1): 127-134. doi: 10.6052/0459-1879-14-165
Zhao Yuping, Yuan Hong, Han Jun. ANALYSIS OF THE MACROSCOPIC INTERFACIAL BEHAVIOUR OF THE FIBRE PULLOUT USING ELASTIC-PLASTIC COHESIVE MODEL[J]. Chinese Journal of Theoretical and Applied Mechanics, 2015, 47(1): 127-134. doi: 10.6052/0459-1879-14-165
Citation: Zhao Yuping, Yuan Hong, Han Jun. ANALYSIS OF THE MACROSCOPIC INTERFACIAL BEHAVIOUR OF THE FIBRE PULLOUT USING ELASTIC-PLASTIC COHESIVE MODEL[J]. Chinese Journal of Theoretical and Applied Mechanics, 2015, 47(1): 127-134. doi: 10.6052/0459-1879-14-165

基于弹性-塑性内聚力模型的纤维拔出界面宏观行为分析

doi: 10.6052/0459-1879-14-165
基金项目: 国家自然科学基金资助项目(11032005).
详细信息
    作者简介:

    袁鸿,教授,主要研究方向:复合材料断裂、板壳非线性力学.E-mail: tyuanhong@jnu.edu.cn

  • 中图分类号: TB332

ANALYSIS OF THE MACROSCOPIC INTERFACIAL BEHAVIOUR OF THE FIBRE PULLOUT USING ELASTIC-PLASTIC COHESIVE MODEL

Funds: The project was supported by the National Natural Science Foundation of China (11032005).
  • 摘要: 用解析法分析了单纤维从聚合物基体中的拔出过程,采用弹性—塑性内聚力模型模拟裂纹的扩展和界面失效,确定了临界纤维埋入长度,该值区分两种不同长度的纤维拔出过程. 在纤维拔出过程,界面经历不同的阶段. 纤维埋长小于临界长度时,界面的脱粘载荷与纤维的埋长成正比;超过临界长度后,界面的脱粘载荷近似为常数. 分析了界面参数对脱粘载荷的影响:增加界面的剪切强度和界面的断裂韧性,或减小界面裂纹萌生位移,均能提高界面的脱粘载荷;界面脱粘后无界面摩擦应力时,拔出载荷—位移曲线的峰值载荷等于界面的脱粘载荷;界面摩擦应力存在时,使峰值载荷大于脱粘载荷,需要较长的纤维埋入长度和较大的界面摩擦应力.

     

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出版历程
  • 收稿日期:  2014-06-06
  • 修回日期:  2014-10-08
  • 刊出日期:  2015-01-18

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