Open Access

ARTICLE

Use of Scaled Models to Evaluate Reinforcement Efficiency in Damaged Main Gas Pipelines to Prevent Avalanche Failure

Nurlan Zhangabay^1,*, Marco Bonopera^2,*, Konstantin Avramov³, Maryna Chernobryvko³, Svetlana Buganova⁴

1 Department of Architecture and Urban Planning, Mukhtar Auezov South Kazakhstan University, No. 5 Av. Tauke Khan, Shymkent, 160012, Kazakhstan
2 Department of Architecture and Industrial Design, University of Campania “Luigi Vanvitelli”, via San Lorenzo ad Septimum, Aversa, 81031, Italy
3 Department of Reability & Dynamic Strength, A. Pidhornyi Institute of Mechanical Engineering Problems of National Academy of Sciences of Ukraine, No. 2/10, Kharkiv, 61046, Ukraine
4 Department of Building Technologies, Infrastructure and Management International Education Corporation (KazGASA), 28 Ryskulbekov Str., Almaty, 050043, Kazakhstan

* Corresponding Authors: Nurlan Zhangabay. Email: ; Marco Bonopera. Email:

(This article belongs to the Special Issue: Advances in Numerical Modeling of Composite Structures and Repairs)

Computer Modeling in Engineering & Sciences 2025, 145(1), 241-261. https://doi.org/10.32604/cmes.2025.069544

Received 25 June 2025; Accepted 26 September 2025; Issue published 30 October 2025

Abstract

This research extends ongoing efforts to develop methods for reinforcing damaged main gas pipelines to prevent catastrophic failure. This study establishes the use of scaled-down experimental models for assessing the dynamic strength of damaged pipeline sections reinforced with wire wrapping or composite sleeves. A generalized dynamic model is introduced for numerical simulation to evaluate the effectiveness of reinforcement techniques. The model incorporates the elastoplastic behavior of pipe and wire materials, the influence of temperature on mechanical properties, the contact interaction between the pipe and the reinforcement components (including pretensioning), and local material failure under transient internal pressure. Based on these parameters, a finite element model was developed using ANSYS 19.2 to enable parametric studies. The accuracy of the proposed model was verified by comparing the simulation results with the experimental findings. Pipeline section samples containing non-penetrating longitudinal cracks were subjected to comparative analyses and transient pressure until critical failure. The unreinforced and steel wire-wrapped sections were investigated. The results confirm the feasibility of applying the computational model to study the dynamic strength of reinforced damaged pipe sections. Furthermore, pipelines with longitudinal cracks reinforced using circular composite overlays with orthotropic mechanical properties were examined, and recommendations are provided for selecting the geometric parameters of such overlays.

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