scholarly journals Nonlinear resonant ultrasound spectroscopy for nondestructive evaluation of thermally aged small pressed pellets

2019 ◽  
Author(s):  
Carly M. Donahue ◽  
Peter A. Schulze ◽  
David S. Moore
Keyword(s):  
Nondestructive Evaluation ◽  
Resonant Ultrasound Spectroscopy ◽  
Resonant Ultrasound

scholarly journals Nonlinear Resonant Ultrasound Spectroscopy for Nondestructive Evaluation of Pentaerythritol Tetranitrate

2018 ◽  
Author(s):  
Carly Michelle Donahue ◽  
Peter Andreas Schulze ◽  
David Steven Moore ◽  
Timothy James Ulrich, II
Keyword(s):  
Nondestructive Evaluation ◽  
Pentaerythritol Tetranitrate ◽  
Resonant Ultrasound Spectroscopy ◽  
Resonant Ultrasound

Nondestructive evaluation of micro-cracks in a ceramic ferrule by resonant ultrasound spectroscopy

2005 ◽  
Vol 38 (7) ◽  
pp. 548-553 ◽  
Author(s):  
Tadaharu Adachi ◽  
Yasunori Kondo ◽  
Akihiko Yamaji ◽  
Soon-Ho Yang ◽  
In-Young Yang
Keyword(s):  
Nondestructive Evaluation ◽  
Resonant Ultrasound Spectroscopy ◽  
Micro Cracks ◽  
Resonant Ultrasound

Nondestructive Evaluation of Some Medical Prosthesis Components Made From Syntherized Zirconium Oxides Using US Spectroscopy

2008 ◽  
Author(s):  
Raimond Grimberg ◽  
Adriana Savin ◽  
Rozina Steigmann ◽  
Alina Bruma ◽  
Sorin Leitoiu
Keyword(s):  
Femoral Head ◽  
Nondestructive Evaluation ◽  
Tetragonal Zirconia ◽  
Spectral Lines ◽  
Noninvasive Evaluation ◽  
Resonant Ultrasound Spectroscopy ◽  
Geometrical Properties ◽  
Zirconium Oxides ◽  
Resonant Ultrasound

This paper presents the resonant ultrasound spectroscopy method that allows, in principle, the determination of the density changing, elastic and geometrical properties of the object to be examined. The method is applied at the noninvasive evaluation of the femoral head prosthetic and of the artificial cervical discs made from yttria stabilized tetragonal zirconia. In the case of density changing, the spectral lines are displacing to smaller frequencies and in the case of the cracks, supplementary peaks appear.

Resonant Ultrasound Spectroscopy Used for Diagnosis of Some Medical Prosthesis Components Made From Zirconium Oxides

2014 ◽  
Author(s):  
Adriana Savin ◽  
Mihai Liviu Craus ◽  
Rozina Steigmann
Keyword(s):  
Nondestructive Evaluation ◽  
Evaluation Method ◽  
Resonant Ultrasound Spectroscopy ◽  
Zirconium Oxides ◽  
Femoral Heads ◽  
Resonant Ultrasound ◽  
Cylindrical Samples

This paper presents a possibility to use Resonant Ultrasound Spectroscopy as nondestructive evaluation method for ceramic elements of prosthesis such as ceramic femoral heads. With this method can be emphasized the incorrect sintering of these elements as well as eventually cracks. If the number of resonance peaks is big enough, the elements of elasticity matrix can be determined, demonstrated by effective measurements on zirconia with different stabilizers cylindrical samples taken into study.

The Nondestructive Evaluation Method for the Optical Glass Lens by Resonant Ultrasound Spectroscopy

2006 ◽  
Vol 321-323 ◽  
pp. 1435-1438 ◽  
Author(s):  
Kil Sung Lee ◽  
Seung Hoon Kim ◽  
Han Ki Min ◽  
Young Nam Kim ◽  
Cheon Seok Cha ◽  
...  
Keyword(s):  
Nondestructive Evaluation ◽  
Evaluation Method ◽  
Optical Glass ◽  
Resonance Mode ◽  
Measuring System ◽  
Resonant Ultrasound Spectroscopy ◽  
Resonant Frequencies ◽  
Aspherical Lens ◽  
Glass Lens ◽  
Resonant Ultrasound

In this research, we proposed nondestructive evaluation method of a flaw in an optical glass lens by resonant ultrasound spectroscopy (RUS). An optical glass lens is used for improving signal coupling between fibers, emitters and detectors. The shape of optical glass lens is an aspherical lens with 3mm in length and 6.35 mm in diameter. For nondestructive evaluation of an aspherical lens, we made of the measuring system by RUS. For flaw evaluation by the RUS to verify the data obtained from the experiment, we carried out simulation by explicit finite elements method, and compared the experimental results with simulation results. Also, we compared the resonant frequencies of specimens with some defect with those of acceptable specimens. The histogram drawn from these data and the available resonance mode surveyed were used to classify the acceptable specimens in the plant.

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