10.14489/td.2020.03.pp.044-053

2020, 03 March

DOI: 10.14489/td.2020.03.pp.044-053

Kozlov A. V.
MEASURING OF ELASTIC MODULI BY MEANS OF SUB-SURFACE SOUNDING METHOD
(pp. 44-53)

Abstract. The method of determination of elastic moduli for different materials by means of measuring of longitudinal and shear waves’ velocities is discussed in the paper. The velocities are measured by obtaining the time of flight between a pair of low frequency ultrasonic dry point contact transducers installed on the surface of the studied material sample. Factors defining the accuracy of such measurement are indicated which mainly consist of physical velocity frequency dispersion, fundamental although small differences between static and dynamic elastic moduli measurements, velocity dependence on temperature etc. Comparison between Young’s modulus and Poisson’s ratio, obtained experimentally and from table data, is given for various plastics and steel samples. It shows good agreement of different methods’ data and demonstrates the applicability of the suggested elastic moduli ultrasonic sub-surface measurement method.

Keywords: измерение упругих констант акустическим методом, преобразователи с сухим точечным контактом.

+ - About the Authors Click to collapse

A. V. Kozlov (Acoustic Control Systems, Ltd., Moscow, Russia) E-mail: Данный адрес e-mail защищен от спам-ботов, Вам необходимо включить Javascript для его просмотра.

+ - References Click to collapse

1. Klyuev V. V. (Ed.) (2003). Non-Destructive Testing: A Handbook. 2nd ed. Moscow: Mashinostroenie. [in Russian language]
2. Landau L. D., Livshits E. M. (2003). Theoretical physics. Vol. VII. Theory of elasticity. 5th ed. Moscow: Fizmatlit. [in Russian language]
3. Concrete Ultrasonic method for determining the strength. (2012). Ru Standard No. GOST 17624–2012. Moscow. [in Russian language]
4. Kozlov V. N., Podol'skiy V. I., Samokrutov A. A., Shevaldykin V. G. (2000). Assessment of the state of reinforced concrete supports of the contact network with an ultrasonic surface sounding device. V mire NK, (1), pp. 46 – 47. [in Russian language]
5. Bogas J. A., Gomes M. G., Gomes A. (2013). Compressive strength evaluation of structural lightweight concrete by non-destructive ultrasonic pulse velocity method. Ultrasonics, Vol. 53, (5), pp. 962 – 972.
6. Demirboğa R., Türkmen İ., Karakoç M. B. (2004). Relationship between ultrasonic velocity and compressive strength for high volume mineral-admixtured concrete. Cement and Concrete Research, Vol. 34, (12), pp. 2329 – 2336.
7. Brigante M., Sumbatyan M. A. (2013). Acoustic methods in non-destructive testing of concrete: a review of foreign publications in theoretical research. Defektoskopiya, (2), pp. 52 – 67. [in Russian language]
8. Golyamina I. P. (Ed.) (1979). Ultrasound: Little Encyclopedia. Moscow: Sovetskaya entsiklopediya. [in Russian language]
9. Asef M. R., Najibi A. R. (2013). The effect of confining pressure on elastic wave velocities and dynamic to static Young’s modulus ratio. Geophysics, Vol. 78, D135 – D142.
10. Eissa E. A., Kazi A. (1988). Relation between static and dynamic Young's moduli of rocks. International Journal of Rock Mechanics and Mining & Geomechanics Abstracts, Vol. 25, (6), pp. 479 – 482.
11. Ciccotti M., Mulargia F. (2004). Differences between static and dynamic elastic moduli of a typical seismogenic rock. Geophysical Journal International, Vol. 157, (1), pp. 474 – 477.
12. He P. (1999). Experimental verification of models for determining dispersion from attenuation. IEEE Ultrasonics, Ferroelectrics, and Frequency Control, Vol. 46, (3), pp. 706 – 714.
13. Ledbetter H. (1993). Dynamic vs. static Young's moduli: a case study. Materials Science and Engineering, Vol. 165, L9 – L10.
14. Gilmour I. W., Trainor A., Haward R. N. (1979). Elastic moduli of glassy polymers at low strains. Journal of Applied Polymer Science, Vol. 23, pp. 3129 – 3138.

+ - Purchase digital version of a single article Click to collapse

This article is available in electronic format (PDF).

The cost of a single article is 350 rubles. (including VAT 18%). After you place an order within a few days, you will receive following documents to your specified e-mail: account on payment and receipt to pay in the bank.

After depositing your payment on our bank account we send you file of the article by e-mail.

To order articles please copy the article doi:

10.14489/td.2020.03.pp.044-053

and fill out the form