The ASME code permits the use of digital radiography and advanced Ultrasonic testing (AUT) method... more The ASME code permits the use of digital radiography and advanced Ultrasonic testing (AUT) methods, such as Time of Flight Diffraction ( TOFD) and Phased Array(PA) for code sections dealing with Boilers, Pressure Vessels and Nuclear reactors. Advances in inspection technologies are finding their way into Canadian standards. Recently revised CSA W59 Standard, now permits the use of these technologies on bridge structures provided there is a written agreement between the Engineer and the Contractor, prior to the examination through clauses 8.1.6 and 8.2.12 of the standard. An overview of these new methods will be presented. A short research program was initiated by MistrasMetaltec with collaboration from various partners in early 2012. Preliminary test results of inspection with conventional RT & UT methods and advanced methods on two experimental plates with defects will be presented to provide a comparison.
Non-destructive testing (NDT) is not only primarily concerned with the detection of discontinuiti... more Non-destructive testing (NDT) is not only primarily concerned with the detection of discontinuities, but also with the mechanical properties. However, the usage of NDT in understanding the mechanical effect that leads to a failure of composites and the damage mechanisms are still not thoroughly studied, as much of the NDT approaches are widely used to maintain the structural integrity to preserve quality assurance. This work aims to investigate the application of infrared thermographic and ultrasonic in evaluating randomly-oriented short-natural-fiber-reinforced phenolic composites. The composites were made from short palm fibers of various sizes between 1.18–0.6 mm, 0.6–0.3 mm, and less than 0.3 mm at 20 and 40 wt%, respectively. The tensile results obtained from the parallel testing of the composites using infrared thermography, where the temperature and time changes on the tested samples were continuously recorded. The peak in the temperature-time graph indicated a macro crack gr...
Non-destructive testing (NDT) is a method of testing and analysis that relies on the application ... more Non-destructive testing (NDT) is a method of testing and analysis that relies on the application of physical principles to determine the integrity of materials without causing damage. The existence of weld discontinuity can affect the service ability of the structures. Ultrasonic testing Phases Array (UTPA) is advanced ultrasonic testing technology widely practiced in many industries. The multiple ultrasonic elements and electronic time delay will create constructive and destructive interference and steering capability, which could improve detectability compared to a single element of conventional UT. The multi displays presented in A-Scan, S-scan, B-Scan, and C-Scan of UTPA equipment capable of locating, inspecting, and characterise defects within the welded component. Two carbon steel plates with thickness 18 mm and 24 mm were prepared and cut to V-shape configuration and welded using shielded metal arc welding (SMAW) process, labelled as NDE-8826 and NDE-8827 respectively. Both s...
IOP Conference Series: Materials Science and Engineering, 2019
This paper describes the remaining wall thickness assessment using Ultrasonic Testing Phased Arra... more This paper describes the remaining wall thickness assessment using Ultrasonic Testing Phased Array (UTPA) technique. A steel plate of thickness 15 mm consists of machined simulated corrosion with various thicknesses, depths, shapes, and sizes were used in this work. Manual corrosion scanner is attached with GE Phased Array (PA) thirty-two elements (transmitter and receiver) Dual Matrix probe of 5 MHz with 1.5 mm pitch is used. The scanner then applied firmly on the plate to execute the inspection. From the result, the relevant indications from the A, B and C-Scans display are collected and analysed. The outcome of the study revealed that UTPA technique is capable to collect a high density of measuring point of thickness compared to the conventional UT technique such as Ultrasonic Testing Thickness Gauge (UTTG).
This research describes an investigation and characterisation of Time of Flight Diffraction (TOFD... more This research describes an investigation and characterisation of Time of Flight Diffraction (TOFD) technique when it interacts with surface defects in metal component. Four steel plates of thickness 19 mm were used in this study. Electrical Discharge Machine (EDM) was used to fabricate the artificial surface cracks with various depths, angles and orientations. In case of TOFD technique, two TOFD probes of 5 MHz at angle 60° and 70° were used in this study with the different Probe Center Spacing (PCS). The latter was determined by using ESBeamTool software. Difficulty was experienced in using TOFD at an angle of 60° for detecting and sizing surface defects whereas successful results were achieved at angle 70°. The characteristic of defect signal was analysed based on surface defect severity. TOFD works well for most cases but surface crack that shallower cracks of 3.0 mm with inclination angle 40° (Notch 8) and 50° (Notch 9) could not be detected. This is due to the fact that crack s...
The ASME code permits the use of digital radiography and advanced Ultrasonic testing (AUT) method... more The ASME code permits the use of digital radiography and advanced Ultrasonic testing (AUT) methods, such as Time of Flight Diffraction (TOFD) and Phased Array(PA) for code sections dealing with Boilers, Pressure Vessels and Nuclear reactors. Advances in inspection technologies are finding their way into Canadian standards. Recently revised CSA W59 Standard, now permits the use of these technologies on bridge structures provided there is a written agreement between the Engineer and the Contractor, prior to the examination through clauses 8.1.6 and 8.2.12 of the standard. An overview of these new methods will be presented. A short research program was initiated by Mistras-Metaltec with collaboration from various partners in early 2012. Preliminary test results of inspection with conventional RT & UT methods and advanced methods on two experimental plates with defects will be presented to provide a comparison.
The ASME code permits the use of digital radiography and advanced Ultrasonic testing (AUT) method... more The ASME code permits the use of digital radiography and advanced Ultrasonic testing (AUT) methods, such as Time of Flight Diffraction ( TOFD) and Phased Array(PA) for code sections dealing with Boilers, Pressure Vessels and Nuclear reactors. Advances in inspection technologies are finding their way into Canadian standards. Recently revised CSA W59 Standard, now permits the use of these technologies on bridge structures provided there is a written agreement between the Engineer and the Contractor, prior to the examination through clauses 8.1.6 and 8.2.12 of the standard. An overview of these new methods will be presented. A short research program was initiated by MistrasMetaltec with collaboration from various partners in early 2012. Preliminary test results of inspection with conventional RT & UT methods and advanced methods on two experimental plates with defects will be presented to provide a comparison.
Non-destructive testing (NDT) is not only primarily concerned with the detection of discontinuiti... more Non-destructive testing (NDT) is not only primarily concerned with the detection of discontinuities, but also with the mechanical properties. However, the usage of NDT in understanding the mechanical effect that leads to a failure of composites and the damage mechanisms are still not thoroughly studied, as much of the NDT approaches are widely used to maintain the structural integrity to preserve quality assurance. This work aims to investigate the application of infrared thermographic and ultrasonic in evaluating randomly-oriented short-natural-fiber-reinforced phenolic composites. The composites were made from short palm fibers of various sizes between 1.18–0.6 mm, 0.6–0.3 mm, and less than 0.3 mm at 20 and 40 wt%, respectively. The tensile results obtained from the parallel testing of the composites using infrared thermography, where the temperature and time changes on the tested samples were continuously recorded. The peak in the temperature-time graph indicated a macro crack gr...
Non-destructive testing (NDT) is a method of testing and analysis that relies on the application ... more Non-destructive testing (NDT) is a method of testing and analysis that relies on the application of physical principles to determine the integrity of materials without causing damage. The existence of weld discontinuity can affect the service ability of the structures. Ultrasonic testing Phases Array (UTPA) is advanced ultrasonic testing technology widely practiced in many industries. The multiple ultrasonic elements and electronic time delay will create constructive and destructive interference and steering capability, which could improve detectability compared to a single element of conventional UT. The multi displays presented in A-Scan, S-scan, B-Scan, and C-Scan of UTPA equipment capable of locating, inspecting, and characterise defects within the welded component. Two carbon steel plates with thickness 18 mm and 24 mm were prepared and cut to V-shape configuration and welded using shielded metal arc welding (SMAW) process, labelled as NDE-8826 and NDE-8827 respectively. Both s...
IOP Conference Series: Materials Science and Engineering, 2019
This paper describes the remaining wall thickness assessment using Ultrasonic Testing Phased Arra... more This paper describes the remaining wall thickness assessment using Ultrasonic Testing Phased Array (UTPA) technique. A steel plate of thickness 15 mm consists of machined simulated corrosion with various thicknesses, depths, shapes, and sizes were used in this work. Manual corrosion scanner is attached with GE Phased Array (PA) thirty-two elements (transmitter and receiver) Dual Matrix probe of 5 MHz with 1.5 mm pitch is used. The scanner then applied firmly on the plate to execute the inspection. From the result, the relevant indications from the A, B and C-Scans display are collected and analysed. The outcome of the study revealed that UTPA technique is capable to collect a high density of measuring point of thickness compared to the conventional UT technique such as Ultrasonic Testing Thickness Gauge (UTTG).
This research describes an investigation and characterisation of Time of Flight Diffraction (TOFD... more This research describes an investigation and characterisation of Time of Flight Diffraction (TOFD) technique when it interacts with surface defects in metal component. Four steel plates of thickness 19 mm were used in this study. Electrical Discharge Machine (EDM) was used to fabricate the artificial surface cracks with various depths, angles and orientations. In case of TOFD technique, two TOFD probes of 5 MHz at angle 60° and 70° were used in this study with the different Probe Center Spacing (PCS). The latter was determined by using ESBeamTool software. Difficulty was experienced in using TOFD at an angle of 60° for detecting and sizing surface defects whereas successful results were achieved at angle 70°. The characteristic of defect signal was analysed based on surface defect severity. TOFD works well for most cases but surface crack that shallower cracks of 3.0 mm with inclination angle 40° (Notch 8) and 50° (Notch 9) could not be detected. This is due to the fact that crack s...
The ASME code permits the use of digital radiography and advanced Ultrasonic testing (AUT) method... more The ASME code permits the use of digital radiography and advanced Ultrasonic testing (AUT) methods, such as Time of Flight Diffraction (TOFD) and Phased Array(PA) for code sections dealing with Boilers, Pressure Vessels and Nuclear reactors. Advances in inspection technologies are finding their way into Canadian standards. Recently revised CSA W59 Standard, now permits the use of these technologies on bridge structures provided there is a written agreement between the Engineer and the Contractor, prior to the examination through clauses 8.1.6 and 8.2.12 of the standard. An overview of these new methods will be presented. A short research program was initiated by Mistras-Metaltec with collaboration from various partners in early 2012. Preliminary test results of inspection with conventional RT & UT methods and advanced methods on two experimental plates with defects will be presented to provide a comparison.
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Papers by Jeffry Jamil