Leak Testing: Non-destructive Testing Options
An overview of Bubble Leak Testing, Pressure Change Leak Testing Leaks are common occurrences in pressure vessels, piping systems,...
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Thomas R. Hay and Josh Bucheit
- Nov 7
- 4 min
How Acoustic Leak Detection is Revolutionizing Leak Detection and Mitigation
Introduction to Acoustic Leak Detection Acoustic leak detection is a cutting-edge technology that has revolutionized the way we identify...
34 views0 comments
Thomas R. Hay, Ph.D., P.E
- Nov 2
- 4 min
Ultrasonic Testing of Steel Bridge Pins: Conventional Ultrasonic and Phased Array Ultrasonic Testing
Conventional ultrasonic testing (UT) and phased array ultrasonic testing (PAUT) of steel bridge pins is important for several reasons,...
109 views0 comments
Thomas R. Hay, Ph.D., P.E
- Sep 3
- 4 min
Phased Array Ultrasonic Testing of Structural Steel Welds to AWS D1.5 and AWS D1.1
In 2015, the American Welding Society (AWS) D1.5 Bridge Welding Code [1,2,3] adopted the annex, "Advanced Ultrasonic Examination," that...
64 views0 comments
Thomas R. Hay, Ph.D., P.E
- Jul 15
- 4 min
Automated Ultrasonic Testing (AUT) C-scan – Ship Hull Survey
Automated ultrasonic testing is used to support many inspection code and standard ultrasonic surveys per requirements in American...
91 views0 comments
Thomas R. Hay, Ph.D., P.E
- Jun 27
- 4 min
Phased Array Ultrasonic Testing - Performance Verification
Introduction to Phased Array Ultrasonic Testing System Verification Phased array ultrasonic testing (PAUT) equipment calibration can mean...
114 views0 comments
Thomas R. Hay, Ph.D., P.E
- Jun 22
- 4 min
Water Tank Non-Destructive Testing
In-Service Water Tank Inspection Aboveground steel water storage tanks require internal inspection in accordance with the relevant...
67 views0 comments
Thomas R. Hay, Ph.D., P.E
- May 2
- 4 min
Non-destructive Testing of Thermite Welds
There are four standard techniques for welding railroad tracks: Flash-butt welding, the gas-pressure welding, the enclosed-arc welding,...
99 views0 comments
Thomas R. Hay, Ph.D., P.E
- Feb 17
- 4 min
Magnetic Particle Testing
Non-Destructive Testing: Magnetic Particle Testing (MT, MPI) Magnetic particle testing (MT) is a fast, simple, and cost effect...
58 views0 comments
Thomas R. Hay, Ph.D., P.E
- Jan 31
- 5 min
Amusement Park Non-destructive Testing: Conventional and Emerging Non-destructive Testing Techniques
Introduction Non-destructive testing (NDT) of amusement park infrastructure is critical to the safe operation of the broad spectrum of...
480 views0 comments
Thomas R. Hay, Ph.D., P.E
- Jan 6
- 5 min
Stress Corrosion Cracking and Advanced Non-destructive Testing
Stress corrosion cracking (SCC) in power generation, petrochemical and chemical plants is a perplexing problem to detect with...
195 views0 comments
Thomas R. Hay, Ph.D., P.E
- Dec 2, 2022
- 5 min
Swivel Joint Failure Mechanisms, Failure Analysis, and Non-destructive Testing Options
Swivel joints play an important role in hydraulic fracturing (fracking) and flowback operations in the oil and natural gas industry. ...
178 views0 comments
Thomas R. Hay, Ph.D., P.E
- Nov 18, 2022
- 5 min
Oil and Natural Gas Well Pad Asset Management
Oil and natural gas well pads are omnipresent in the different shale plays across the U.S including the Marcellus and Utica shales in...
177 views0 comments
Thomas R. Hay, Ph.D., P.E
- Nov 8, 2022
- 5 min
High Resolution Mapping of Tank Floor Underside Corrosion using MFL and PAUT Array DLA Technology
Introduction Aboveground storage tank floors can be inspected for bottom side corrosion using several non-destructive testing techniques...
211 views0 comments
Thomas R. Hay, Ph.D., P.E
- Oct 23, 2022
- 4 min
Advanced NDT of Pipelines with GWUT and follow-up PAUT Dual Element Probe Technology
Introduction Pipelines start to deteriorate the moment they commissioned and placed in-service. Pipeline corrosion and metal loss from...
127 views0 comments
Thomas R. Hay, Ph.D., P.E
- Aug 8, 2022
- 4 min
Wood Pole Inspection, Treatment, and Asset Management
Wood Pole Inspection, Treatment, and Asset Management Introduction Utility pole asset management is an exciting market in North America...
207 views0 comments
Thomas R. Hay, Ph.D., P.E
- Jul 1, 2022
- 4 min
Adopting Full Matrix Capture / Total Focusing Method to Complement or Enhance Phased Array UT
The article reviews some of the basic principle of FMC/TFM data acquisition and imaging processes and compares them to standard phased...
222 views0 comments
Thomas R. Hay, Ph.D., P.E
- Jun 20, 2022
- 4 min
Fiberglass Reinforced Plastic Tank Resin Liner Inspection
Fiberglass reinforced plastic (FRP) tanks are common storage tanks for a wide variety of hazardous chemicals from hydrochloric acid to...
465 views0 comments
Thomas R. Hay, Ph.D., P.E
- May 19, 2022
- 4 min
Guided Wave Ultrasonic Testing of Encased Pipeline and Spacer Selection
Guided Wave Ultrasonic Testing of Encased Pipeline and Spacer Selection The performance of guided wave ultrasonic testing (GWUT) or...
115 views0 comments
Thomas R. Hay, Ph.D., P.E
- Apr 29, 2022
- 4 min
Acoustic Emission Testing Data Analysis for Composite Pressure Vessels
Acoustic emission generated by composite pressure vessels, in theory, should be relatively straight forward to analyze and to draw...
181 views0 comments
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