On the analysis of notched concrete beams: From measurement with digital image correlation to identification with boundary element method of a cohesive model

被引：41

作者：

Ferreira, M. D. C. ^{[2
]}

Venturini, W. S. ^{[2
]}

Hild, F. ^{[1
]}

机构：

[1] ENS Cachan CNRS UPMC PRES UniverSud Paris, LMT Cachan, F-94235 Cachan, France

[2] Univ Sao Paulo, Escola Engn Sao Carlos, Dept Engn Estruturas, BR-13566590 Sao Carlos, SP, Brazil

来源：

ENGINEERING FRACTURE MECHANICS | 2011年 / 78卷 / 01期

基金：

巴西圣保罗研究基金会;

关键词：

Boundary elements; Cohesive crack; Digital image correlation; Inverse analysis; Parameter identification; FLAW IDENTIFICATION; CRACK; FRACTURE; PARAMETERS;

D O I：

10.1016/j.engfracmech.2010.10.008

中图分类号：

O3 [力学];

学科分类号：

08 ; 0801 ;

摘要：

A way of coupling digital image correlation (to measure displacement fields) and boundary element method (to compute displacements and tractions along a crack surface) is presented herein. It allows for the identification of Young's modulus and fracture parameters associated with a cohesive model. This procedure is illustrated to analyze the latter for an ordinary concrete in a three-point bend test on a notched beam. In view of measurement uncertainties, the results are deemed trustworthy thanks to the fact that numerous measurement points are accessible and used as entries to the identification procedure. (C) 2010 Elsevier Ltd. All rights reserved.

引用

页码：71 / 84

页数：14

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