ACOUSTIC-EMISSION MONITORING OF STEEL RAILROAD BRIDGES

被引：0

作者：

GONG, Z ^{[1
]}

NYBORG, EO ^{[1
]}

OOMMEN, G ^{[1
]}

机构：

[1] CANADIAN NATL RAILWAYS,MONTREAL,QUEBEC,CANADA

来源：

MATERIALS EVALUATION | 1992年 / 50卷 / 07期

关键词：

ACOUSTIC EMISSION; BRIDGE MONITORING; FERROUS MATERIAL; IRON; MAINTENANCE; NONDESTRUCTIVE INSPECTION; QUALITY ASSURANCE; RAILROAD INDUSTRY; STEEL;

D O I：

暂无

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

Results from acoustic emission (AE) monitoring of 36 steel railroad bridges are presented. The demonstrated successes of using AE to find new cracks, to identify active cracks, to validate the effectiveness of repairs, and to provide damage assessments to assist with repair prioritization are discussed. The challenges presented in using AE for fatigue-life estimation; for the assessment of pins, hangers, and complex weldments; and for crack assessment of severely corroded members are outlined. Finally, new ideas for refined monitoring and enhanced data analysis are presented.

引用

页码：883 / 887

页数：5

共 15 条

[1]

BASSIM MN, 1976, MATER EVAL, V34, P109

[2]

BASSIM NM, 1987, NONDESTRUCTIVE TESTI, V5, P46

[3]

Dunegan H.L., 1968, ENG FRACT MECH, V1, P105

[4]

FISHER JW, 1990, APR IABSE WORKSH REM