Influence of 3D-crack angle on strength of mortar ematerial

LIN Chun-jin; ZHU Wei-shen; LI Shu-cai; GUO Yan-shuang; WEN Nuan-dong; YANG Lei

English Version Journal Login

您当前的位置：

首页 >

文章列表页 >

Influence of 3D-crack angle on strength of mortar ematerial

更新时间：2026-06-25

- Influence of 3D-crack angle on strength of mortar ematerial
- Vol. 27, Issue S1, (2006)
- 作者机构：
  
  山东大学岩土与结构工程研究中心,济南,250061
- 作者简介：
- 基金信息：
- DOI：
  CLC： TU452
- Online First：15 December 2006，
  
  Published：2006
- 稿件说明：
移动端阅览
LIN Chun-jin, ZHU Wei-shen, LI Shu-cai, et al. Influence of 3D-crack angle on strength of mortar ematerial[J]. 2006, 27(S1).
DOI：

LIN Chun-jin, ZHU Wei-shen, LI Shu-cai, et al. Influence of 3D-crack angle on strength of mortar ematerial[J]. 2006, 27(S1). DOI：

摘要

利用伺服控制试验系统及声发射设备对含有单椭圆裂纹的非均质砂浆材料进行物理试验，获得了单轴加载作用下不同布置角度的三维内部裂纹试样的全应力-应变曲线和声发射数据。找到了声发射数据与应力-应变曲线的对应关系。根据对应关系，判断出试样的起裂应力及破坏应力。分析了裂纹布置角度对材料强度的影响，分析表明：裂纹与加载方向为45º夹角时最难破坏，与加载方向成60º夹角时最容易破坏。此外，裂纹尖端起裂应力为试样极限强度的86.07 %～87.42 %。

Abstract

A series of experimental tests for heterogeneous brittle mortar material containing pre-existing internal crack were carried out . The complete stress-strain curves and acoustic emission data of the mortar material in uniaxial compression were obtained using acoustic emission equipment and serve-controlled test machine. Based on these data

the relation of complete stress-strain curves and acoustic emission data were searched .Then the influence of crack angle on the strength of mortar specimens were analysed judging the initiation stress and failure stress of mortar specimens .It is concluded that the strength of mortar specimens is the lowest at α=60oand the highest atα=45o. In addition

the initiation stress on the tips of cracks is about 86.07%-87.42% of the failure strength of the specimens.

关键词

Keywords

references

Views

119

下载量

CSCD

Alert me when the article has been cited

提交

Tools

Publicity Resources

Acoustic-thermal response characteristics and precursor law of fissured sandstone under cyclic loading and unloading

Effect of bedding plane direction on acoustic emission characteristics of shale in Brazilian tests

Experimental study on rupture evolution and failure characteristics of aphanitic basalt

Crack propagation characteristics in rocks containing single fissure based on acoustic testing and camera technique

Energy dissipation feature and rock burst risk assessment in coal-rock combinations

Related Author

LIU Yi-ming

LI Zhen

FENG Guo-rui

YANG Peng

BAI Jin-wen

HUANG Bing-xiong

LI Dong

HOU Peng

Related Institution

College of Safety and Emergency Management Engineering, Taiyuan University of Technology

Communist Youth League Linxian Committee, Lüliang

Anhui Engineering Research Center of Exploitation and Utilization of Closed/Abandoned Mine Resources, Anhui University of Science and Technology

College of Mining Engineering, Taiyuan University of Technology

Shanxi Institute of Energy

AI问答

⁰