The Application of Acoustic Method for Diagnostics of Structural Shapes Stress Condition
DOI:
https://doi.org/10.20535/1810-0546.2016.5.77378Keywords:
Structural shape construction, Echo reflection shadows method, Metal constructionAbstract
Background. Article is dedicated to the problem of the state quantity value pressure to the structural shape constructions during the process of exploitation without method of acoustic control testing.
Objective.The aim of the paper is the improvement of the acoustic diagnostics of the shape constructions using the acoustic method of control.
Methods. The echo reflection-shadow method for the achievement of the aim of research was proposed.
Results. The acoustic spring connective coefficient was defined for the structural shape of metal constructions, that includes the density and fatness of the contact liquid, the force of pressure to the object of control, angle of the introduction of ultrasonic wave and the material of the control object with the usage the distance of neutral line of the structural shape construction, which allows improving the accurate diagnostics.
Conclusions. The experimental research on the metal with this known chemical state allows defining the acoustic pressure coefficients of the connections of the structural shape of the metal constructions. Comparative analysis was carried out theoretically due to the proposed method of the acoustic diagnostics. It showed the absolutely fault for the pressures of 10 Amp, which is not higher than 3 % from the state of material
References
N.E. Nykytyna and S.V. Kazachek, “Benefits acoustoelasticity method for the nondestructive testing of mechanical stresses in machine parts”, Vestnyk Nauchno-Tekhnycheskoho Razvytyia, no. 4 (32), pp. 18–28, 2010 (in Russian).
A.N. Guz' and F.G. Makhort, “The physical fundamentals of the ultrasonic nondestructive stress analysis of solids”, Internat. Appl. Mech, no. 9 (36), pp. 1119–1149, 2000.
V.M. Bobrenko et al., “Acoustic tensometry”, Kontrol. Dyahnostyka, no. 4, pp. 23–39, 2001 (in Russian).
M. Ya et al., “Residual stresses in laser welded aluminium plate by use of ultrasonic and optical methods”, Mater. Sci. Eng., no. 1-2 (382), pp. 25–26, 2004.
A.A. Karabutov et al., “Laser-ultrasonic method for detecting longitudinal stresses rail lashes”, Myr Yzmerenyi, no. 9, pp. 10–17, 2012 (in Russian).
K.V. Kurashkyn and V.V. Myshakyn, “Laser-ultrasonic method for detecting longitudinal stresses rail lashes”, Sbornyk Trudov XXII Sessyy RAO, no. 2, pp. 106–110, 2010 (in Russian).
D.E. Bray and W. Tang, “Subsurface stress evaluation in steel plates and bars using the Lcr ultrasonic wave”, Nucl. Eng. Design, no. 2 (207), pp. 231–240, 2001.
K.V. Kurashkyn and V.V. Myshakyn, “Investigation of the effect on the structure of the material characteristics of acoustic parameters”, Trudy Nyzhehorodskoho Hosudarstvennoho Tekhnycheskoho Unyversyteta ym. P.E. Alekseeva, no. 2 (87), pp.190–198, 2011 (in Russian).
V.S. Yeremenko and R.M. Halahan, “Ways to minimize the total error of measuring the speed of ultrasound in materials with heterogeneous structure”, Elektrotekhnichni ta Kompiuterni Systemy, no. 6. pp. 39–45, 2012 (in Ukrainian).
V.A. Ostafiev et al., Diagnosis Metalworking Process. Кyiv, Ukraine: Tekhnyka, 1991 (in Russian).
S.P. Burkyn et al., Residual Stresses in the Metal. Ekaterynburh, Russia: Ural University Publ., 2015 (in Russian).
M.A. Demchenko et al., “States diagnostics of elastic waves of steelwork beam elements in metallic industrial structures”, in Proc. 9th European Conf. Innovations in Technical and Natural Sciences “East West”, Association for Advanced Studies and Higher Education GmbH, Vienna, Austria, 2015, pp. 8–12 (in Russian).
O.M. Bezvesilna and H.S. Tymchik, Technological Measurements and Devices. Transforming Devices Equipment. Zhytomyr, Ukraine: Zhytomyr State Technological University, 2012 (in Ukrainian).
Downloads
Published
Issue
Section
License
Copyright (c) 2017 NTUU KPI Authors who publish with this journal agree to the following terms:- Authors retain copyright and grant the journal right of first publication with the work simultaneously licensed under CC BY 4.0 that allows others to share the work with an acknowledgement of the work's authorship and initial publication in this journal.
- Authors are able to enter into separate, additional contractual arrangements for the non-exclusive distribution of the journal's published version of the work (e.g., post it to an institutional repository or publish it in a book), with an acknowledgement of its initial publication in this journal.
- Authors are permitted and encouraged to post their work online (e.g., in institutional repositories or on their website) prior to and during the submission process, as it can lead to productive exchanges, as well as earlier and greater citation of published work
