Indentation Characteristics Using Various Indenters: A Study Based on Laboratory and Numerical Tests

被引：0
|
作者：
Jie Liu
Wen Wan
Senlin Xie
Jun Wang
机构：
[1] Hunan Institute of Engineering,Department of Building Engineering
[2] Hunan University of Science and Technology,School of Resource, Environment and Safety Engineering
来源：
Geotechnical and Geological Engineering | 2019年 / 37卷
关键词：
Indentation; Stress condition; Median crack; Lateral crack;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
Laboratory and numerical indentations, using wedge-shaped, spherical and blunt indenters, were performed. The laboratory and numerical results agreed well that fluctuations of the indentation force occurred after the peaks. In addition, indentations by the wedge-shaped indenter generated median cracks whereas, for the spherical and blunt indenters, median and lateral cracks formed. We inferred from the numerical study that the fluctuations correlate to the crack propagation. In addition, the subsequently concentrated tensile stress zones are responsible for the generation of the median and lateral cracks, caused by spherical and blunt indenters. However, for the wedge-shaped indenter, the tensile concentrated zone, forming at the early indentation stage, can cause the median crack.
引用
收藏
页码：4919 / 4931
页数：12
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