Control of inhomogeneous materials strength by method of acoustic emission
- Saint-Petersburg Mining University
Abstract
The ambiguous connection between the results of acoustic emission control and the strength of materials makes acoustic-emission diagnosis ineffective and actualizes the problem of strength and metrological heterogeneity. Inhomogeneity is some deviation from a certain norm. The real object is always heterogeneous, homogeneity is an assumption that simplifies the image of the object and the solution of the tasks associated with it. The need to consider heterogeneity is due to the need to clarify a particular task and is a transition to a more complex level of research. Accounting for heterogeneity requires the definition of its type, criterion and method of evaluation. The type of heterogeneity depends on the problem being solved and should be related to the property that determines the function of the real object, the criterion should be informative, and the way of its evaluation is non-destructive. The complexity of predicting the behavior of heterogeneous materials necessitates the modeling of the destructive process that determines the operability, the formulation of the inhomogeneity criterion, the interpretation of the Kaiser effect, as showing inhomogeneity of the phenomenon of non-reproduction of acoustic emission (AE) activity upon repeated loading of the examined object. The article gives an example of modeling strength and metrological heterogeneity, analyzes and estimates the informative effect of the Kaiser effect on the danger degree of state of diagnosed object from the positions of the micromechanical model of time dependencies of AE parameters recorded during loading of structural materials and technical objects.
References
- Kuz'min A.N., Filippov S.Yu. Akustiko Acoustic emission failure detection of lifting equipment. V mire nerazrushayushchego kontrolya. 2008. N 2, р. 46-48 (in Russian).
- Nosov V.V. Assessment of the impact hazard of the rock massif by the results of recording its seismic activity. Zapiski Gornogo instituta. 2015. Vol. 216, р. 62-75 (in Russian).
- Nosov V.V. Diagnostic of machines and equipment. St. Petersburg: Izd-vo «Lan'«, 2016, р. 376 (in Russian).
- Nosov V.V. Mechanics of composite materials. St. Petersburg: Izd-vo «Lan'«, 2013, р. 240 (in Russian).
- PB 03-593-03. Rules for the organization and conduct of acoustic emission control of vessels, apparatuses, boilers and process pipelines. Moscow: Gosgortekhnadzor, 2003 (in Russian).
- Parkhomenko I.V., Yaremenko M.A., Zhbanov Yu.V. et al. Application of the AE method for testing alloy steel under low temperature conditions. Tekhnicheskaya diagnostika i nerazrushayushchii kontrol'. 1990. N 1, р. 68-71 (in Russian).
- Regel' V.R., Slutsker A.K., Tomashevskii E.E. Kinetic nature of solid bodies strength. Moscow: Nauka, 1974, р. 560 (in Russian).
- Tsarev I.K. Acoustic emission control of bridge crane metal structures. Akusticheskaya emissiya materialov i konstruktsii: Sb. tez. dokl. I Vsesoyuznoi konf. 11-13 sentyabrya 1984 g. Rostov-na-Donu: Izd-vo Rostovskogo un-ta, 1984. Part II, р. 87-88 (in Russian).
- Shen Gongtian, Wu Zhanwen. Gongtian Shen Study on Spectrum of Acoustic Emission Signals of Bridge Crane. Insight: Non-Destruct. Test. and Cond. Monit. 2010. Vol. 52. N 3, p.144-147.
- Nosov V.V., Eltchaninov G.S. The Effect of Strength State Nonuniformity on the Acoustic Emission of Structural Materials. Russian Journal of Nondestructive Testing. 2011. Vol. 47. N 12, p.824-833
- Nosov V.V., Kotov Yu.V. Developing Algorithms for Estimating Strength on the Base of Imitating Structural Model of Acoustic Emission.I. Effect of Instability of Acoustic-Emission Coefficient. Russian Journal of Nondestructive Testing. 2001. Vol.37. N 9, p.644-649.
- Nosov V.V., Burakov I.N. A Micromechanical Model of Acoustic Emission of Heterogeneous Materials. Russian Journal of Nondestructive Testing. 2004. Vol.40. N 2, p.113-119.
- Nosov V.V., Burakov I.N. Use of Amplitude Distribution Parametersof Acoustic Emission Signals for Assessing the Strength of Structural Materials. Russian Journal of Nondestructive Testing. 2004. Vol.40. N 3, p.157-162.
- Nosov V.V., Potapov A.I., Burakov I.N. Estimation of the Strength and Lifetime of Technical Objects Using the Acoustic-Emission Method. Russian Journal of Nondestructive Testing. 2009. Vol.45. N 2, p.109-117.
- Nosov V.V. Estimation of the Strength and Lifetime of Welded Constructions Using the Acoustic-Emission Method. Russian Journal of Nondestructive Testing. 2009. Vol.45. No 2. P.118-124.
- Nosov V.V., Lachova E.N. Estimating the Residual Life of Plastically Deformed Welded Joints using Simulation of Their Acoustic Emission. Russian Journal of Nondestructive Testing. 2012. Vol.48. N 2, p.75-84.
- Nosov V.V., Lavrin V.G. Nondestructive Testing of the Quality of Blanks for the Fabrication of Hot-Rolled Strips Using the Acoustic-Emission Method. Russian Journal of Nondestructive Testing. 2012. Vol. 48. N 3, p.159-165.
- Nosov V.V.Automated Evaluation of the Service Lives of Specimens of Structural Materials on the Basis of a Micromechanical Model of the Time Dependences of Acoustic Emission Parameters. Russian Journal of Nondestructive Testing. 2014. Vol.50. N 12, p.719-729.
- Nosov V.V., Potapov A.I. Acoustic Emission Testing of the Strength of Metal Structures under Complex Loading. Russian Journal of Nondestructive Testing. 2015. Vol. 51. N 1, p.50-58.
- Nosov V.V., Matviian I.V. Consideration of Kaiser Effect from the standpoint of strength inhomogeneity and the way of its estimation. In Scientific Reports on Resource Issues: Efficiency and Sustaiability in Mineral Industry – Innovations in Geology, Mining, Processing, Economics, Safety, and Environmental Management. June 2016. Technische University Bergakademie Freiberg, Germany. 2016. Vol.1, p. 147-152.
- Nosov V.V. On the Principles of Optimizing the Technologies of Acoustic-Emission Strength Control of Industrial Objects. Russian Journal of Nondestructive Testing. 2016. Vol. 52. N 7, p. 386-399