FRACTURE OF CONCRETE UNDER MULTIAXIAL STRESS - RECENT DEVELOPMENTS

被引：25
|
作者：
VANMIER, JGM
VONK, RA
机构：
[1] Department of Civil Engineering, Stevin Laboratory, Delft University of Technology, Delft, 2600 GA
[2] Department of Architectural Engineering, Van Musschenbroek Laboratory, Eindhoven University of Technology, Eindhoven, 5600 MB
来源：
MATERIALS AND STRUCTURES | 1991年 / 24卷 / 139期
关键词：
D O I：
10.1007/BF02472683
中图分类号：
TU [建筑科学];
学科分类号：
0813 ;
摘要：
The paper reviews the influence of structural effects on the softening of concrete in multiaxial compression. The post-peak stress-deformation response of concrete subjected to uni- and multiaxial compression is influenced by geometrical and boundary condition effects. Comparison of results obtained by various investigators indicates that fracture in compression is a localized phenomenon. Conical intact material elements are separated by discrete shear bands. Structural effects determine the movement of the intact blocks with respect to one another. Material aspects of softening include the appearance of intact (grain) bridges in the shear bands, and frictional restraint in the shear band. The similarities with fracture in uniaxial tension are outlined. In the latter case crack interface grain bridging is observed too, which is considered as the salient characteristic of the fracture of brittle disordered materials.
引用
收藏
页码：61 / 65
页数：5
相关论文
共 50 条
12345