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1 to 10 of 141 Results
Ultrasonic Evaluation of Thermal Degradation in Adhesive Bonds
Jul 31, 1994
Lih, Shyh-Shiuh; Mal, Ajit K.; Bar-Cohen, Yoseph, 1994, "Ultrasonic Evaluation of Thermal Degradation in Adhesive Bonds", https://hdl.handle.net/2014/33064, Snowmass Village, CO, JPL Open Repository
The critical role played by adhesive bonds in lap joints is well known. A good knowledge of the mechanical properties of adhesive bonds in lap joints is a prerequisite to the design and reliable prediction of the performance of these bonded structures. Furthermore, the lap joint...
NASA NDE Working Group Newsletter, Vol. 2, No. 4
Oct 1, 1994
Bar-Cohen, Yoseph, 1994, "NASA NDE Working Group Newsletter, Vol. 2, No. 4", https://hdl.handle.net/2014/33445, JPL, JPL Open Repository
This NNWG Newsletter is published quarterly by the NASA NDE Working Group and NASA HQ, Code QW.
Dual Use of Ultrasonic Plate Waves: NDE and Ultrasonic Motors
Dec 12, 1995
Bar-Cohen, Yoseph, 1995, "Dual Use of Ultrasonic Plate Waves: NDE and Ultrasonic Motors", https://hdl.handle.net/2014/23630, Downey, California, JPL Open Repository
No abstract provided
Multifunction Automater Crawler -Inspection Module (MAC-IM): adaptation of space technology to aircraft NDE
Jan 8, 1996
Bar-Cohen, Yoseph; Backes, Paul; Joff, Benjamin, 1996, "Multifunction Automater Crawler -Inspection Module (MAC-IM): adaptation of space technology to aircraft NDE", https://hdl.handle.net/2014/23569, Norfolk, Virginia, USA, JPL Open Repository
No abstract provided
Nondestructive Evaluation (NDE) and Actuation Mechanisms Using Plate Waves
Apr 5, 1996
Bar-Cohen, Yoseph, 1996, "Nondestructive Evaluation (NDE) and Actuation Mechanisms Using Plate Waves", https://hdl.handle.net/2014/24764, UCLA, JPL Open Repository
No abstract provided
NDE of Elastic Properties of Fiber-Reinforced Composite Materials Using Ultrasonic Oblique Insonification
Jun 24, 1996
Bar-Cohen, Yoseph; Lih, Shyh-Shiuh; Mal, Ajit K., 1996, "NDE of Elastic Properties of Fiber-Reinforced Composite Materials Using Ultrasonic Oblique Insonification", https://hdl.handle.net/2014/25413, Kakuku, Hawaii, USA, JPL Open Repository
NOne given. Paper covers properties of composite materials.
Measuring Thickness and Elastic Properties of Electroactive Thin-Film Polymers Using Platewave Dispersion Data
Jul 28, 1996
Bar-Cohen, Yoseph; Lih, Shyh-Shiuh; Mal, Ajit K., 1996, "Measuring Thickness and Elastic Properties of Electroactive Thin-Film Polymers Using Platewave Dispersion Data", https://hdl.handle.net/2014/26149, Brunswick, Maine, JPL Open Repository
No abstract provided
Measuring the Thickness and Elastic Properties of Electroactive Thin-Film Polymers Using Platewave Dispersion Data
Jul 28, 1996
Bar-Cohen, Yoseph; Lih, Shyh-Shiuh; Mal, Ajit K., 1996, "Measuring the Thickness and Elastic Properties of Electroactive Thin-Film Polymers Using Platewave Dispersion Data", https://hdl.handle.net/2014/25242, Brunswick, Maine, JPL Open Repository
No abstract provided
Measuring the Thickness and Elastic Properties of Electroactive Thin-Film Polymers Using Platewave Dispersion Data
Jul 29, 1996
Bar-Cohen, Yoseph; Lih, Shyh-Shiuh; El-Azab, A.; Mal, Ajit K., 1996, "Measuring the Thickness and Elastic Properties of Electroactive Thin-Film Polymers Using Platewave Dispersion Data", https://hdl.handle.net/2014/26498, Brunswick, Maine, JPL Open Repository
Electroactive thin-film polymers are candidate sensors and actuators materials. They are also finding significant potential in muscle mechanisms and microelectromechanical systems (MEMS). In these applications, polymer thin films of thickness varying between 20 and 300 micrometer...
Polymer Piezoelectric Transducers for Ultrasonic NDE
Sep 3, 1996
Bar-Cohen, Yoseph; Xue, Tianji; Lih, Shyh-Shiuh, 1996, "Polymer Piezoelectric Transducers for Ultrasonic NDE", https://hdl.handle.net/2014/26470, UNKNOWN, JPL Open Repository
Piezoelectric polymers are associated with a low noise and inherent damping that makes them very effective receivers as well as broadband transmitters for high frequencies tasks. This paper reviews polymer piezoelectric materials, the origin of their piezoelectric behavior and th...
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