Acoustic Emission Testing of Steel Bridges
Introduction Acoustic emission testing (AET) is a well-established non-destructive testing (NDT) technology commonly used to detect...
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Thomas R. Hay, Ph.D., P.E
- Jun 18, 2021
- 4 min
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...
118 views0 comments
Thomas R. Hay, Ph.D., P.E
- Jun 14, 2021
- 4 min
Magnetic Particle Testing
Non-Destructive Testing: Magnetic Particle Testing (MT, MPI) Magnetic particle testing (MT) is a fast, simple, and cost effect...
185 views0 comments
Thomas R. Hay, Ph.D., P.E
- May 28, 2021
- 4 min
High-Temperature Guided Wave Pipeline Inspection
Guided wave ultrasonic testing (GWUT) or long-range ultrasonic testing (LRUT) is a non-destructive testing (NDT) method that uses...
76 views0 comments
Thomas R. Hay, Ph.D., P.E and Suhaib Zafar
- Mar 22, 2021
- 5 min
Locating Acoustic Emission Sources in Pressure Vessels
Acoustic Emission (AE) testing is an advanced non-destructive testing (NDT) technique that measures stress wave, or ultrasonic waves,...
143 views0 comments
Thomas R. Hay, Ph.D., P.E., Suhaib Zafar
- Mar 1, 2021
- 5 min
FMC/TFM Inspection of Welded Structures
Introduction Total Focusing Method (TFM) / Full Matrix Capture (FMC) technology show potential to improve weld flaw sizing performance...
328 views0 comments
Thomas R. Hay, Ph.D., P.E
- Jan 17, 2021
- 4 min
Acoustic Emission Testing of Valve Leaks
Introduction Acoustic emission testing is often associated with the detection of metal or composite flaws that are active, or grow, while...
391 views0 comments
Thomas R. Hay, Ph.D., P.E
- Jan 6, 2021
- 4 min
In-service Water Tank Testing
Introduction Aboveground storage tanks dedicated to water storage are used most often for fire protection and potable water. Water tanks...
111 views0 comments
Thomas R. Hay, Ph.D., P.E
- Sep 27, 2020
- 3 min
Acoustic Emission Testing of Pressure Vessel, Pipelines, and Aboveground Storage Tanks
Acoustic emission testing is a proven advanced non-destructive testing method for to assess the condition of steel pressure vessels,...
338 views0 comments
Thomas R. Hay, Ph.D., P.E
- Sep 9, 2020
- 4 min
Composite Pressure Vessel Testing using Acoustic Emission Testing
Acoustic emission (AE) technology has been applied to steel pressure vessels, including U.S. DOT and ASME high pressure cylinders, for...
394 views0 comments
noahtwersky
- Aug 21, 2020
- 4 min
Rope Access and Advanced Non-destructive Testing
Thomas R. Hay, Ph.D., P.E, ASNT Level #107162 TECHKNOWSERV CORP. 498 Meckley Rd. State College, PA 16801 814-237-0144 June 30, 2020...
113 views0 comments
Thomas R. Hay, Ph.D., P.E
- Aug 7, 2020
- 5 min
Phased Array, TOFD, and TFM/FMC: Comparing Methods for Weld Lack of Fusion Detection
Phased array ultrasonic testing (PAUT), time-of-flight diffraction (TOFD) ultrasonic testing and full matrix capture (FMC) / total...
422 views0 comments
Thomas R. Hay, Ph.D., P.E
- Jul 24, 2020
- 5 min
Non-destructive Testing Inspector Performance Variations
Description of Welded Joints and Inspection Process Non-destructive testing (NDT) inspector performance demonstration qualification (PDQ)...
78 views0 comments
noahtwersky
- Jul 13, 2020
- 4 min
Pipe Stiffener Crack Detection using Alternating Current Field Measurement and Phased Array Ultrason
Advanced non-destructive testing (NDT) techniques like alternating current field measurement (ACFM) and phased array ultrasonic testing...
107 views0 comments
Thomas R. Hay, Ph.D., P.E
- Jun 18, 2020
- 4 min
Wire Rope Testing – An Introduction to Magnetic Flux Leakage Testing
Introduction Wire rope testing with magnetic flux leakage (MFL) is a well-developed non-destructive testing (NDT) technique for wire rope...
740 views0 comments
Thomas R. Hay, Ph.D., P.E
- Jun 4, 2020
- 4 min
Phased Array Testing to Bridge Welding Code
Introduction Phased array ultrasonic testing (PAUT) is presented in detail in the American Welding Society (AWS) D1.5 Bridge Welding Code...
229 views0 comments
Thomas R. Hay, Ph.D., P.E
- May 21, 2020
- 4 min
Phased Array Ultrasonic Testing (PAUT) Weld Flaw Sizing
Ultrasonic weld inspection using phased array ultrasonic testing (PAUT) is used to detect and size weld defects across many different...
833 views0 comments
Thomas R. Hay, Ph.D., P.E
- May 8, 2020
- 4 min
Wire Rope Testing – A Review of Different Non-destructive Testing Methods
Introduction Wire rope testing, or bridge cable inspection, is an essential process in fitness-for-serv ice evaluation of amusement park...
782 views0 comments
Thomas R. Hay, Ph.D., P.E
- Apr 24, 2020
- 5 min
Phased Array Ultrasonic Testing (PAUT) Weld Inspection – Pattern Recognition
Introduction Machines are trained by humans to seek patterns in large volumes of data in order to discriminate between different data...
936 views0 comments
Thomas R. Hay, Ph.D., P.E
- Mar 20, 2020
- 2 min
On-line NDT Training
Date: 03/20/2020 Announcement: Remote Learning - NDT Training Ultrasonic Testing Level 1 Course Cost: $1250 On-line NDT Training Course...
44 views0 comments