| 2026 №02 (07) |
DOI of Article 10.37434/as2026.02.01 |
2026 №02 (02) |
"Avtomatychne Zvaryuvannya" (Automatic Welding), #2, 2026, pp. 3-16
Computer program forstress-strain state modeling circumferential welded joint
L.M. Lobanov
, O.V. Makhnenko, O.S. Milenin, O.A. Velykoivanenko, G.P. Rozynka, N.R. Basystuk, G.Yu. Saprykina
E.O. Paton Electric Welding Institute of the NAS of Ukraine
11 Kazymyr Malevych Str., 03150, Kyiv, Ukraine.
E-mail: makhnenko@paton.kiev.ua
The «Girth Weld» computer program enables computational analysis of mechanical properties in circumferential welded joints (girth welds) of pipelines and pressure vessels, including: weld metal and heat-affected zone (HAZ) properties, residual stresses and deformations, stress-strain state redistribution under post-weld heat treatment, operational loads, or pressure testing, structural integrity assessment and service life prediction for welds with discontinuities (detected by non-destructive testing or postulated). The program requires no specialized skills in computational methods, automating key processes such as parametric modeling of multi-pass girth welds, finite element mesh generation, solver execution and results visualization. Despite minimal hardware and time requirements, «Girth Weld» ensures high accuracy through advanced modeling of welding physico-chemical processes, efficient algorithms for nonlinear problems, optimized solutions for high-order differential equations. 6 Ref., 3 Tabl., 16 Fig.
Keywords: multi-pass welding, girth welded joint, computer program, mathematical modeling, finite element method, mechanical properties, residual stresses, deformations, post weld heat treatment, operational loads, defect acceptability
Received: 22.05.2025
Received in revised form: 24.11.2025
Accepted: 10.04.2026
Posted online 11.04.2026
References
1. Makhnenko, V.I. (2006) Resource of safe operation of welded joints and units of modern structures. Kyiv, Naukova dumka [in Russian].2. Makhnenko, V.I., Velikoivanenko, E.A., Pochinok, V.E., Makhnenko, O.V., Rozynka, G.Ph., Pivtorak, N.I. (1999) Numerical methods for the predictions of welding stresses and distortions. Welding and Surfacing Reviews, 13(1), 1-146.
3. Yuryev, S.F. (1950) Specific volumes of phases in the martensitic transformation of austenite. Moscow, Metallurgizdat [in Russian].
4. Mannesmann. CCT diagram for steel X10CrMoVNb91. - Data Sheet 435 R, material 1/4903. - February 1996 Edition.
5. Kasatkin, O.G., Zeiffarth, P. (2002) Calculation models for evaluation of mechanical properties of HAZ metal in welding of low-alloy steels. In: Collection of works of the international conference «Mathematical modeling and information technologies in welding and related processes». Kyiv, pp. 103-106 [in Russian].
6. Belomytsev, M.Yu., Molyarov, V.G. (1994) Study of the structure and construction of the thermokinetic diagram of the decomposition of austenite in 10GN2MFA steel. Izvestyia vysshykh zavedenyi. Chernaia metallurhyia, 3, 47-49 [in Russian]
This article is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.
Suggested Citation
L.M. Lobanov, O.V. Makhnenko, O.S. Milenin, O.A. Velykoivanenko, G.P. Rozynka, N.R. Basystuk, G.Yu. Saprykina (2026) Computer program forstress-strain state modeling circumferential welded joint. Automatic Welding, 02, 3-16. https://doi.org/10.37434/as2026.02.01Advertising in this issue:
