Destructive Testing and Finite Element Analysis to Determine Ultimate Capacity of Skewed Steel I-Girder Bridges

2009 ◽  
Vol 2131 (1) ◽  
pp. 49-56 ◽  
Author(s):  
Andrew J. Bechtel ◽  
Jennifer Righman McConnell ◽  
Michael J. Chajes
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Ultimate Capacity ◽  
Destructive Testing ◽  
Element Analysis ◽  
Girder Bridges

Semi-discrete finite element analysis of slab–girder bridges

2002 ◽  
Vol 80 (23) ◽  
pp. 1789-1796 ◽  
Author(s):  
Mei-Wen Guo ◽  
Issam E. Harik ◽  
Wei-Xin Ren
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Element Analysis ◽  
Girder Bridges ◽  
Discrete Finite Element

3D Finite Element Analysis for Magnetic Flux Leakage Testing

2011 ◽  
Vol 201-203 ◽  
pp. 1623-1626
Author(s):  
Qiang Song
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Magnetic Flux ◽  
Three Dimensional ◽  
Magnetic Flux Leakage ◽  
Destructive Testing ◽  
Element Analysis ◽  
Dimensional Finite Element ◽  
Three Dimensional Finite Element ◽  
Flux Leakage

Magnetic flux leakage (MFL) is a non-destructive testing method used to inspect ferrous materials. However, apparatus parameters could affect the MFL inspection tool’s ability to characterize anomalies. In this paper, MFL signals obtained during the inspection of pipes have been simulated using three-dimensional finite element analysis and the effects of magnet assembly on MFL signals are investigated. According to numerical simulations, an increase in the leakage flux amplitude is observed with an increase in the permanent magnet size and the inflexion point may indicate the presence of magnetizing pipe wall to near saturation. It clearly illustrates degradation in the MFL with increasing backing iron length. The relationship between MFL apparatus parameters and MFL signals could be utilized in the MFL technique to characterize the defect.

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