Improvements in Standardized Testing for Evaluating Sediment Barrier Performance: Design of a Full-Scale Testing Apparatus

2017 ◽  
Vol 143 (8) ◽  
pp. 04017029 ◽  
Author(s):  
R. A. Bugg ◽  
W. N. Donald ◽  
W. C. Zech ◽  
M. A. Perez
Keyword(s):  
Standardized Testing ◽  
Full Scale ◽  
Testing Apparatus ◽  
Barrier Performance ◽  
Full Scale Testing

scholarly journals Performance Evaluations of Three Silt Fence Practices Using a Full-Scale Testing Apparatus

Water ◽  
2017 ◽  
Vol 9 (7) ◽  
pp. 502 ◽  
Author(s):  
R. Bugg ◽  
Wesley Donald ◽  
Wesley Zech ◽  
Michael Perez
Keyword(s):  
Full Scale ◽  
Performance Evaluations ◽  
Testing Apparatus ◽  
Full Scale Testing

A Newly Developed State-of-the-Art Full-Scale Excavation Testing Apparatus for Tunnel Boring Machine (TBM)

2021 ◽  
Author(s):  
Gi-Jun Lee ◽  
Hee-Hwan Ryu ◽  
Tae-Hyuk Kwon ◽  
Gye-Chun Cho ◽  
Kyoung-Yul Kim ◽  
...  
Keyword(s):  
State Of The Art ◽  
Tunnel Boring Machine ◽  
Full Scale ◽  
Testing Apparatus ◽  
Tunnel Boring

Fatigue Crack Growth at Electrical Resistance Welding Seam of API 5L X-70 Steel Line Pipe at Varied Orientations

2017 ◽  
Vol 139 (3) ◽  
Author(s):  
Craig Taylor ◽  
Sreekanta Das ◽  
Laurie Collins ◽  
Muhammad Rashid
Keyword(s):  
Fatigue Crack ◽  
Fatigue Crack Growth ◽  
Crack Growth ◽  
Base Metal ◽  
Electrical Resistance ◽  
Weld Seam ◽  
Full Scale ◽  
Resistance Welding ◽  
Line Pipe ◽  
Full Scale Testing

Very few studies have been conducted concerning fatigue in steel line pipe and fewer using full-scale testing. Further, at the time of this study, no research on full-scale testing was available in open literature regarding fatigue behavior of line pipe with longitudinal cracks, despite being considered more critical than the line pipe with cracks oriented in the circumferential direction. In the current research work, fatigue crack growth was investigated in NPS 20, API 5L X-70 grade, electrical resistance welding (ERW) straight-seam steel line pipes in the base metal and at the weld seam for various orientations. It was found that there was no significant difference between fatigue crack growth in the base metal and at the weld seam for the tested stress ratio. Increasing the angle of inclination of the crack with respect to the weld line was found to decrease the rate of fatigue crack growth due to a decrease in the mode I stress component. Finally, it was observed that despite the difference in fatigue crack growth rates, the crack aspect ratios were nearly identical for all cracks at the same crack depth.

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