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Abstract <p>This article considers the calculation of the stress-strain state of the cylindrical part of a metal-composite pressure vessel using the deformation theory of plasticity for isotropic materials. Since the stress state of the metal liner is not plane, the calculation was performed using the method of variable elastic parameters, accounting for radial stress. The algorithm was implemented in the Wolfram Mathematica computer algebra system for two liner materials. The obtained results demonstrate the influence of the radial component on the stress-strain state, which can be significant for materials with low yield and tensile strengths.</p>

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Solution of the Problem of Force Loading of the Cylindrical Part of a Metal-Composite High-Pressure Vessel Beyond the Elastic Limit

  • 期刊论文

  • 发表日期：

    2026年5月23日

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  • I. T. Zakieva,
  • G. V. Grishyna

摘要

Abstract

This article considers the calculation of the stress-strain state of the cylindrical part of a metal-composite pressure vessel using the deformation theory of plasticity for isotropic materials. Since the stress state of the metal liner is not plane, the calculation was performed using the method of variable elastic parameters, accounting for radial stress. The algorithm was implemented in the Wolfram Mathematica computer algebra system for two liner materials. The obtained results demonstrate the influence of the radial component on the stress-strain state, which can be significant for materials with low yield and tensile strengths.