• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Cement and Concrete Research >(105892)Numerical and analytical modeling of fiber-matrix bond behaviors of high performance cement composite
【24h】

(105892)Numerical and analytical modeling of fiber-matrix bond behaviors of high performance cement composite

机译：（105892）高性能水泥复合材料纤维 - 基质粘结行为的数值和分析

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Use of steel fiber in high performance cement composite (HPCC) can enhance its strength and toughness, which is achieved through stress transfer from fiber to matrix at interface. In this study, a numerical model in Finite Element Method and three analytical models were proposed to predict bond behaviors between HPCC matrix and three different shaped (straight, hooked, and corrugated) steel fibers at different ages. The proposed numerical model considered an enhancement factor based on the modified interfacial friction law (MIFL). In the analytical models, frictional force following a power function was considered. Predicted results from those numerical and analytical models were compared with existing models and corresponding experimental results. The comparisons indicated that the enhancement factor employed in the MIFL efficiently reflected the change in fiber-matrix bond properties with age. The predicted pullout load-slip relationships and energies from those proposed models showed higher accuracy than those from the existing models.
机译：高性能水泥复合材料（HPCC）中的钢纤维可以提高其强度和韧性，这是通过从纤维转移到界面的基质的应力转移来实现的。在该研究中，提出了有限元方法和三种分析模型中的数值模型，以预测不同年龄的HPCC矩阵和三种不同形状（直，钩状和瓦楞）钢纤维之间的粘合行为。所提出的数值模型认为基于改进的界面摩擦法（MIFL）的增强因子。在分析模型中，考虑了功率功能之后的摩擦力。将这些数值和分析模型的预测结果与现有模型和相应的实验结果进行了比较。比较表明，MIFL中使用的增强因子有效地反映了纤维 - 基质粘合性能随年龄的变化。预测的拔出负载滑移关系和来自这些建议模型的能量显示比现有模型的精度更高。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号