Fractal fragmentation theory for size effects of quasi-brittle materials in compression

被引：7
|
作者：
Carpinteri, A [1 ]
Pugno, N [1 ]
机构：
[1] Politecn Torino, Dept Struct Engn & Geotech, I-10129 Turin, Italy
来源：
MAGAZINE OF CONCRETE RESEARCH | 2005年 / 57卷 / 06期
关键词：
D O I：
10.1680/macr.2005.57.6.309
中图分类号：
TU [建筑科学];
学科分类号：
0813 ;
摘要：
Size effects on dissipated energy density and strength for quasi-brittle materials in compression are analysed theoretically and experimentally herein. By using a fractal fragmentation approach the dissipated energy density of a structural element under compression is deduced. In addition, the dissipated energy density and the strength for geometrically similar structural elements under compression, by varying their size, are obtained. Finally, a comparison between theoretical predictions and experimental results is presented for plane as well as fibre-reinforced concrete. The size effects on dissipated energy density and compressive strength are captured by the proposed model in a satisfactory way.
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页码：309 / 313
页数：5
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