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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...
Thomas R. Hay, Ph.D., P.E
May 19, 20224 min read
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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...
Thomas R. Hay, Ph.D., P.E
Apr 29, 20224 min read
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Advanced NDT of Aerospace Components: Eddy Current and Linear Phased Array Testing
Introduction Aerospace components draw from a broad range of materials and geometries and typically require advanced nondestructive...
Thomas R. Hay, Ph.D., P.E
Apr 15, 20224 min read
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Wood Pole Testing
Wood Pole Testing Thomas Hay Ph.D., P.E. Introduction to Wood Pole Testing Wood pole inspection is a surprisingly large inspection market...
Thomas R. Hay, Ph.D., P.E
Apr 1, 20225 min read
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Ultrasonic Testing of U.S DOT Cylinders Using Phased Array Ultrasonic Testing
Ultrasonic testing of steel and aluminum U.S. DOT cylinders is required to recertify the cylinders every 5 or 10 years depending on the...
Thomas R. Hay, Ph.D., P.E
Mar 11, 20224 min read
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Liquid Penetrant Testing: Fundamentals and NDT Personnel Training
Liquid Penetrant Testing (LPT) is a non-destructive testing (NDT) technique used to detect surface flaws that may not be detectable to...
Thomas R. Hay, Ph.D., P.E
Feb 28, 20224 min read
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Phased Array Ultrasonic Testing (PAUT) of Aluminum Ship Hull Welds for Sensitization of Aluminum
Aluminum Sensitization and Non-destructive Testing Aluminum alloy ship hulls are utilized on many commercial and military ship platforms....
Thomas R. Hay, Ph.D., P.E
Feb 11, 20224 min read
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Non-destructive Testing of Cement Plant Mills, Gears, and Kilns
Cement plants are large scale operations that require large scale machines to produce the materials required to build a wide variety of...
Thomas R. Hay, Ph.D., P.E
Jan 13, 20225 min read
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Ultrasonic Immersion Testing – Basics
Ultrasonic testing (UT) performed in immersion tanks or using squirters or bubblers is an established non-destructive testing technology...
Thomas R. Hay, Ph.D., P.E
Nov 16, 20214 min read
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Flow Iron Recertification
Flow iron recertification is a multi-step process that involves asset tracking, equipment teardown and rebuild, sand blasting and...
Thomas R. Hay, Ph.D., P.E
Nov 8, 20214 min read
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Flow Accelerated Corrosion (FAC)
Introduction Flow accelerated corrosion (FAC), also termed flow assisted corrosion, is a phenomenon wherein carbon steel components with...
Thomas R. Hay, Ph.D., P.E., Suhaib Zafar
Oct 22, 20215 min read
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An Overview of Eddy Current Testing and its Applications
Thomas R. Hay (PhD, PE) and Suhaib Zafar Introduction Eddy Current Testing (ECT) utilizes the phenomenon of electromagnetic induction — a...
Thomas R. Hay, Ph.D., P.E., Suhaib Zafar
Oct 3, 20214 min read
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Drone-Based Non-Destructive Testing
There are a wide variety of testing methods that are commonly used within the field of non-destructive testing (NDT) including but not...
Thomas R. Hay, Ph.D., P.E
Sep 23, 20214 min read
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Reflections on On-line and Remote Non-destructive Testing Training
Non-destructive testing training courses are often rigorous and time intensive commitments. These courses often follow NDT topical,...
Thomas R. Hay, Ph.D., P.E
Sep 17, 20214 min read
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Non-destructive Testing Options for Welded Steel Bridges
Welded steel bridges consist of many fracture critical members (FCMs) that are require periodic non-destructive testing (NDT) for fatigue...
Thomas R. Hay, Ph.D., P.E
Sep 8, 20215 min read
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Data Redundancy: Confirming Non-destructive Test Results using PAUT and TFM/FMC
Introduction Non-destructive testing (NDT) of welds with phased array ultrasonic testing (PAUT) and more recently the total focusing...
Thomas R. Hay, Ph.D., P.E
Aug 27, 20213 min read
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Aboveground Storage Tank Inspection – A Tale of Four States
TechKnowServ Corporation (TKS) is strategically located to serve New York, New Jersey, Ohio Pennsylvania, and West Virginia owners and...
Thomas R. Hay, Ph.D., P.E
Aug 12, 20214 min read
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Phased Array Inspection of Aerospace Composites
Introduction to Phased Array Testing of Composites Phased array ultrasonic testing (PAUT) of aerospace composites during the fabrication...
Thomas R. Hay, Ph.D., P.E
Jul 9, 20214 min read
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Acoustic Emission Testing of Steel Bridges
Introduction Acoustic emission testing (AET) is a well-established non-destructive testing (NDT) technology commonly used to detect...
Thomas R. Hay, Ph.D., P.E
Jun 29, 20214 min read
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Combining Ultrasonic Testing (UT) and Ground Penetrating Radar (GPR) for Anchor Bolt Testing
Streetlights, traffic signal lighting, traffic signage, and support beams are often installed and secured using steel anchor bolts...
Thomas R. Hay, Ph.D., P.E
Jun 18, 20214 min read
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