Influence of mechanical property of twin fibers pull-out test with embedment

ZHANG Yafang; ZENG Xiangrong; LIU Hao; HE Juan

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Influence of mechanical property of twin fibers pull-out test with embedment

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- Influence of mechanical property of twin fibers pull-out test with embedment
- Acta Scientiarum Naturalium Universitatis SunYatseni Vol. 55, Issue 5, Pages: 43-47(2016)
- 作者机构：
  
  广州大学土木工程学院,广东,广州,510006
- 作者简介：
- 基金信息：
- DOI：
  CLC：
- Published：2016，
  
  Published Online：25 October 2016，
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ZHANG Yafang, ZENG Xiangrong, LIU Hao, et al. Influence of mechanical property of twin fibers pull-out test with embedment. [J]. Acta Scientiarum Naturalium Universitatis SunYatseni 55(5):43-47(2016)
DOI：

ZHANG Yafang, ZENG Xiangrong, LIU Hao, et al. Influence of mechanical property of twin fibers pull-out test with embedment. [J]. Acta Scientiarum Naturalium Universitatis SunYatseni 55(5):43-47(2016) DOI：

摘要

在考虑材料细观非均匀性前提下建立二维双丝拉拔数值模拟模型，研究埋深变化对双丝拉拔构件力学性能的影响，获得不同双丝埋深构件的荷载-位移曲线、沿界面剪应力曲线及荷载-步长声发射曲线等，观察界面控制下不同埋深构件拉拔过程裂纹演化过程及基体剪应力分布情况。结果表明，埋深变化对构件破坏模式及剪应力分布影响较大；随着双丝埋深增加，构件的峰值荷载增大，韧性不断增强。

Abstract

Numerical models of 2D twin fibers pull-out test have been created based on material meso-level heterogeneity. The influence of mechanical property of twin fibers pull-out test with embedment have been studied. Load-displacement curves

interface shear stress distribution curves and load-step-AE (Acoustic Emission) curves were obtained with various embedment depth. Crack evolution and shear stress distribution with various embedment of specimens under interface control are

therefore

investigated. The results show that the change of embedment depth has great influence on failure process and shear stress distribution. With the embedment increasing

peak load and toughness increase either.

关键词

埋深双丝拉拔剪应力声发射

Keywords

embedmenttwin fibers pull-out testshear stressacoustic emission

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Related Author

ZHANG Yafang

ZHANG Kai

LIU Hao

GAN Wei

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ZHANG Yafang

LIU Hao

LIU Feng

Related Institution

School of Civil Engineering，Guangzhou University

Shenzhen Municipal Design & Research Institute Co. Ltd.

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