Estimation of fracture toughness, driving force, and fracture energy for fractal cracks using the method of imaginary smooth crack

被引：13

作者：

Zhang, Heng ^{[1
]}

Wei, De-Min ^{[2
]}

机构：

[1] S China Univ Technol, Dept Civil Engn, Guangzhou 510640, Guangdong, Peoples R China

[2] S China Univ Technol, State Key Lab Subtrop Bldg Sci, Guangzhou 510640, Guangdong, Peoples R China

来源：

ENGINEERING FRACTURE MECHANICS | 2010年 / 77卷 / 04期

关键词：

Fractal crack; Specific surface energy per unit fractal measure; Fractal toughness; Concrete; STRUCTURAL STRENGTH; SIZE; SURFACES; CONCRETE; DIMENSION; MECHANICS; MODELS;

D O I：

10.1016/j.engfracmech.2009.12.005

中图分类号：

O3 [力学];

学科分类号：

08 ; 0801 ;

摘要：

Theoretical expressions of the fracture toughness, driving force and fracture energy are derived for a perfect infinite plate with a solitary self-similar fractal crack of mode I considering the fractal effects of cracks in this work. The specific surface energy per unit fractal measure for concrete is fit based on test data. Thus, behaviors of the above four fracture parameters for concrete are studied as varying the initial length of the fractal crack. (C) 2009 Elsevier Ltd. All rights reserved.

引用

页码：621 / 630

页数：10

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