STUDY OF SHEAR FRACTURE IN MORTAR SPECIMENS

被引：15

作者：

DAVIES, J

机构：

[1] Department of Civil Engineering and Building, The University of Glamorgan

来源：

CEMENT AND CONCRETE RESEARCH | 1995年 / 25卷 / 05期

关键词：

D O I：

10.1016/0008-8846(95)00098-W

中图分类号：

TU [建筑科学];

学科分类号：

0813 ;

摘要：

The Linear Elastic Finite Element Analysis was used to determine the influence of geometry and loading conditions on the stress distribution in specimens proposed for fracture testing in mixed mode loading. To establish the contribution of the shear part of the loading towards the overall cracking process, the stress intensity factors KI and KII at the notch tips were estimated from numerical displacements. It was established that in some cases KII is significantly higher than KI, indicating that the shear part of loading plays an important role during the fracture process. The numerical study was complemented by a series of experiments which indicated that shear fracture can be generated if the symmetry of specimen geometry and loading is maintained. A comparison of fracture zone characteristics generated under static and impact loading is also given and it was observed that the strain rate does not alter the fundamental features of a cracking process.

引用

页码：1031 / 1042

页数：12

共 11 条

[1]

Bazant Z, 1986, MATER STRUCT, V19, P111, DOI [10.1007/BF02481755, DOI 10.1007/BF02481755]

[2]

DAVIES J, 1992, FRACTURE MECHANICS OF CONCRETE STRUCTURES /, P713

[3]

Davies J., 1987, INT J CEM COMPOS LIG, V9, P33, DOI [10.1016/0262-5075(87)90035-2, DOI 10.1016/0262-5075(87)90035-2]

[4]

Davies J., 1988, INT J CEM COMPOS LIG, V10, P3

[5]

DAVIES J, 1991, FRACTURE PROCESSES C, V2, P717

[6]

INGRAFFEA AR, 1985, ASCE NEW YORK, P151

[7]

LUONG MP, 1991, FRACTURE PROCESSES C, V2, P727

[8]

VANMIER JGM, 1992, FRACTURE MECHANICS OF CONCRETE STRUCTURES /, P659

[9]

VANMIER JGM, 1991, FRACTURE PROCESSES C, V1, P27

[10]

WOO CW, 1982, INT JR FRACTURE, V20, P63

← 1 2 →