EXPERIMENTAL METHOD TO DETERMINE EXTENSION OF FRACTURE-PROCESS ZONE

被引：51

作者：

Hu, Xiaozhi ^{[1
]}

Wittmann, Folker H. ^{[1
]}

机构：

[1] ETH Honggerberg, Lab Bldg Mat, Swiss Fed Inst Tech, CH-8093 Zurich, Switzerland

来源：

JOURNAL OF MATERIALS IN CIVIL ENGINEERING | 1990年 / 2卷 / 01期

关键词：

D O I：

10.1061/(ASCE)0899-1561(1990)2:1(15)

中图分类号：

TU [建筑科学];

学科分类号：

0813 ;

摘要：

A multicutting technique is introduced, which can be used to determine the extension of the fracture-process zone together with the conventional compliance method. A new compliance curve is established from a damaged specimen during multicutting and compared with the compliance-calibration curve. From the comparison of these two compliance curves the extension of the fracture-process zone can be estimated. Experimental results of wedge-opening loaded specimens with a ligament length of 110 mm show that the length of the fracture-process zone in mortar varies from around 43 mm to 12 mm while the crack is approaching to the boundary. A relation between the length of the fracture-process zone and the shape of the K-r-curve is established.

引用

页码：15 / 23

页数：9

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