Determination of energy consumption in the fracture plane of Ultra High Toughness Cementitious Composite with direct tension test

被引：50

作者：

Li, Hedong ^{[1
]}

Xu, Shilang ^{[1
]}

机构：

[1] Zhejiang Univ, Inst Adv Engn Struct & Mat, Hangzhou 310058, Zhejiang, Peoples R China

来源：

ENGINEERING FRACTURE MECHANICS | 2011年 / 78卷 / 09期

基金：

中国国家自然科学基金; 中国博士后科学基金;

关键词：

Strain hardening; Fiber; Multiple cracks; Bridging; Direct tension test; Fracture energy; BEHAVIOR;

D O I：

10.1016/j.engfracmech.2011.03.012

中图分类号：

O3 [力学];

学科分类号：

08 ; 0801 ;

摘要：

In this paper, the energy consumption in the fracture plane of Ultra High Toughness Cementitious Composite was analyzed with double-edge notched plates under direct tension. The results showed that monitoring elongation and retraction of the notched regions could effectively separate the localized crack from other multiple cracks, and the softening curve could be drawn accordingly. With the softening curve, the fracture energy due to fiber bridging G(b) and the fracture energy G(F) were calculated. This work provides a thought more than the detailed results to separate the single fracture crack from other multiple fine cracks of pseudo strain hardening materials. (C) 2011 Elsevier Ltd. All rights reserved.

引用

页码：1895 / 1905

页数：11

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