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Articles by Glenn
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Activity
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95% of LinkedIn users ignore their headline. That’s why they’re invisible. Think about walking past billboards on your way home. Some make you…
95% of LinkedIn users ignore their headline. That’s why they’re invisible. Think about walking past billboards on your way home. Some make you…
Liked by Glenn Andrew, MS
Experience
Education
Licenses & Certifications
Volunteer Experience
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Board Member, Master HOA
Village in the Park Master Association
- 2 years 1 month
The Master Association overseas three individual homeowner associations (HOA) with a combined total of 297 residences.
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President, HOA
Village in the Park Association
- 11 months
Home owners association (HOA) with 60 homeowners.
Publications
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Case Study for the Implementation of an Automated Ultrasonic Technique to Detect Fatigue Cracks in Aircraft Weep Holes
Materials Evaluation, Vol. 59, n 11, p.1313
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Detection of Cracks in Weep Holes Using Neural Networks
Review of Progress in QNDE, Vol. 19, p. 1979
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An Ultrasonic Technique to Detect Corrosion in DC-9 Wing Box from Concept to Field Application
Materials Evaluation, Vol. 53, No. 7, pp: 848-852
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Neutral Data Format for Nondestructive Evaluation
Annual Report-1991 Bondline Work Package 4.0, SAIC Report #443/1291/37
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Imaging of Butt Weld Pulse Echo Contact Tests
Nondestructive Testing Handbook, Volume 7, Ultrasonic Testing, P. McIntyre, Ed., American Society for Nondestructive Testing
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Summary of the Early Focus Ultrasonic Measurements on Large SRMs
Annual Report-1990 Bondline Work Package 4.0, SAIC Report #443/1290/36
Other authors -
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Ultrasonic Inspection, in Metals Handbook Ninth Edition, Volume 17
Nondestructive Evaluation and Quality Control, J. Davis, Handbook Mgr., ASM International
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Ultrasonic Color Imaging and Stress Analysis of Piping Coupler Shrink Fit
Materials Evaluation, Vol. 42, No. 11, pp: 1393-1400
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Acoustic Transients in Pulse-Echo Systems
M.S. Thesis, University of Rhode Island
The transient behavior of an ultrasonic transducer operating in a pulse-echo system is studied both analytically and experimentally. Mathematically, the acoustic field is described using an impulse response approach, while a distributed parameter model is used to represent the transducer dynamics. The harmonic pressure field from a circular piston is first presented using a Fourier integral representation of the impulse response. A pulse-echo model for an ultrasonic system is then developed and…
The transient behavior of an ultrasonic transducer operating in a pulse-echo system is studied both analytically and experimentally. Mathematically, the acoustic field is described using an impulse response approach, while a distributed parameter model is used to represent the transducer dynamics. The harmonic pressure field from a circular piston is first presented using a Fourier integral representation of the impulse response. A pulse-echo model for an ultrasonic system is then developed and used to evaluate the pulsed acoustic field response from a transducer for a variety of field points and electrical excitations. A multipulse structure is clearly observed in both the field pressures and the receive voltages. A set of transducers having various matching conditions are fabricated and used to obtain pulse-echo responses from a spherical target placed at different points throughout the acoustic nearfield. Again a multiple pulse structure is noted. To minimize the effect of these acoustic transients, various focusing schemes are experimentally studied. Spherical, conical and toroidal apertures are examined for both shaped-element and lens systems. Transducers of identical diameters, frequencies and focal distances have been designed and fabricated for each case. Measurements of the pulsed acoustic field from these transducers indicate that where sharply focused fields are employed, acoustic transient effects can be effectively eliminated from the focal zone.
Honors & Awards
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Outstanding Paper in Materials Evaluation Award
American Society for Nondestructive Testing (ASNT)
Co-author of paper entitled “Case Study for the Implementation of an Automated Ultrasonic Technique to Detect Fatigue Cracks in Aircraft Weep Holes.”
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Model of Excellence Award
McDonnell Douglas Corporation
The team developed, documented and received approval from the Federal Aviation Administration for an ultrasonic technology applied to the DC-9 Wing Box T-Cap that reduced inspection labor hours by 85 percent using service bulletin estimates and airline calculations. The technology also reduced inspection costs over $1 million.
The award recognizes “individuals and teams who champion change for the enterprise, achieve exceptional quality improvements, and enhance Excellence in MDA…The team developed, documented and received approval from the Federal Aviation Administration for an ultrasonic technology applied to the DC-9 Wing Box T-Cap that reduced inspection labor hours by 85 percent using service bulletin estimates and airline calculations. The technology also reduced inspection costs over $1 million.
The award recognizes “individuals and teams who champion change for the enterprise, achieve exceptional quality improvements, and enhance Excellence in MDA products.” The Model of Excellence Award is MDA’s highest quality award.
Organizations
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International Coach Federation (ICF)
Member
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ICF Minnesota
Member
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American Society for Nondestructive Testing
Member
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