V. B. Poroshin, A. N. Ufimtsev
MAKING A PARAMETER MAP FOR THE INELASTIC CYCLIC DEFORMATION OF COILED TUBING PIPES BY MEANS OF A DIGITAL MODEL OF TEST EQUIPMENT
DOI: 10.17804/2410-9908.2024.4.102-117 The accelerated resource testing technique is applied to the digital simulation of bench tests of coiled tubing pipes. Finite element models of the stand and a tube specimen are formed in the Ansys Mechanical package. By calculating the kinetics of the stress-strain state of the specimen, inelastic hysteresis loops for a stabilized cycle are obtained for a number of combinations of operating loads, namely internal pressure, pipeline weight, and the size of the guide device. Status maps are constructed therefrom, relating the parameters of inelastic deformation (alternating plastic flow, ratcheting of strain induced by alternating plastic flow) to loads. The use of the status maps makes possible reasonable planning of real experimental research programs to simulate the required form of coiled tubing failure under operating conditions, and this significantly reduces time, labor, and material costs.
Keywords: coiled tubing, digital model of the test bench and the specimen, calculation of the kinetics of alternating inelastic deformation, Ansys Mechanical FEM package, ratcheting of plastic strain, alternating plastic flow, parameter map of inelastic cyclic deformation References:
- Kuznetsov, N.D. and Tseytlin, V.I. Ekvivalentnye ispytaniya gazoturbinnykh dvigateley [Equivalent Tests of Gas Turbine Engines]. Mashinostroenie Publ., Moscow, 1976, 214 p. (In Russian).
- Gokhfeld, D.A., Getsov, L.B., Kononov, K.M., Kulchikhin, E.T., Rebyakov, Yu.N., Sadakov, O.S., Timashev, S.A., and Chepurskiy, V.N. Mekhanicheskie svoystva staley i splavov pri nestatsionarnom nagruzhenii. Spravochnik [Mechanical Properties of Steels and Alloys under Non-Stationary Loading: Handbook]. UrO RAN Publ., Ekaterinburg, 1996, 408 p. (In Russian).
- Qian-Bei, Y., Guohao, S., Gang, W., Jubao, L., Ming, Y., and Qiang, Z. Experimental study on the influence of bending and straightening cycles for non-destructive and destructive coiled tubing. Engineering Failure Analysis, 2021, 123, 105218. DOI: 10.1016/j.engfailanal.2021.105218.
- Poroshin, V.B., Buksbaum, V.B., and Druzhinin, P.S. Technique for forecasting the operating life of coil tubing on the basis of laboratory and bench tests. Vestn. Yuzhno-Ural. Gos. Un-ta. Ser. Matem. Mekh. Fiz., 2014, 6 (3), 72–77. (In Russian).
- Ilyinykh, V.N. and Syzrantsev, V.N. Construction of a mathematical model for describing the data of low-cycle fatigue tests. In: Fundamentalnaya nauka i tekhnologii – perspektivnyye razrabotki: materialy mezhdunarodnoy nauchno-prakticheskoy konferentsii [International Scientific-Practical Conference “Fundamental Science and Technologies – Advanced Development”, Moscow, May 22–23, 2013: Proceedings]. Moscow, 2013, pp. 224–226. (In Russian).
- Poroshin, V.B. and Ufimtsev, A.N. The test bench digital model and FEM-analysis for the kinetics of a stress-strain state of coiled tubing specimens. In: Vserossiyskaya nauchnaya konferentsiya s mezhdunarodnym uchastiem “Tsifrovaya industriya: sostoyaniye i perspektivy razvitiya TSISP’2023” [2023 Global Smart Industry Conference, Chelyabinsk, November 21–23, 2023: Collection of Scientific Papers]. Chelyabinsk, YuUrGU Publ., 2024, pp. 377–386. (In Russian). Available at: http://omega.sp.susu.ru/glosic2023/articles/039.pdf
- http: help/ans_elem/Hlp_E_SHELL181.html
- Ramberg, W. and Osgood, W.R. Description of stress–strain curves by three parameters, NACA–TN–902, 1943, 32 p.
Article reference
Poroshin V. B., Ufimtsev A. N. Making a Parameter Map for the Inelastic Cyclic Deformation of Coiled Tubing Pipes by Means of a Digital Model of Test Equipment // Diagnostics, Resource and Mechanics of materials and structures. -
2024. - Iss. 4. - P. 102-117. - DOI: 10.17804/2410-9908.2024.4.102-117. -
URL: http://eng.dream-journal.org/issues/content/article_459.html (accessed: 10/31/2024).
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