Experimental investigation of size effect in concrete and sandstone under uniaxial tension

被引：145
作者：
van Vliet, MRA [1 ]
van Mier, JGM [1 ]
机构：
[1] Delft Univ Technol, Fac Civil Engn & Geosci, Lab M2L, NL-2600 GA Delft, Netherlands
来源：
ENGINEERING FRACTURE MECHANICS | 2000年 / 65卷 / 2-3期
关键词：
size effect; concrete; sandstone; Weibull theory; stress/strain gradients;
D O I：
10.1016/S0013-7944(99)00114-9
中图分类号：
O3 [力学];
学科分类号：
08 ; 0801 ;
摘要：
A series of uniaxial tension experiments has been conducted to investigate the size effect on strength and fracture energy of concrete and sandstone. This paper specifically deals with the variation of the nominal strength for specimens of six different sizes in a scale range of 1.32. Depending on the material and the curing conditions a stronger or weaker size effect on the nominal strength occurred in the tests. The observed size effect has to be attributed to a combination of statistical size effect and strain gradients in the cross section of the specimens, which were caused by the specimen shape, load eccentricity and material inhomogeneity. (C) 2000 Elsevier Science Ltd. All rights reserved.
引用
收藏
页码：165 / 188
页数：24
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