Title: Exploring creep mechanisms in externally pressurised orthotropic cylinders with variable density

Authors: Priya Gulial; Pankaj Thakur

Addresses: Faculty of Science and Technology, Department of Mathematic, ICFAI University, Himachal Pradesh, 174101, India ' Faculty of Science and Technology, Department of Mathematic, ICFAI University, Himachal Pradesh, 174101, India

Abstract: This research paper presents a comprehensive analysis of steady-state creep behaviour and strain in an orthotropic rotating cylinder subjected to external pressure and varying density, employing Norton's law. Extensive numerical computations have been performed for a wide range of steels and steel alloys commonly used in cylinder manufacturing, considering five distinct types of anisotropy. The study meticulously investigates the significant effects of anisotropy and the exponent 'n' in the creep law. A key finding indicates that the effective stress values for anisotropic materials, particularly in Types I and II, show a marked reduction compared to their isotropic counterpart in Type III. Furthermore, the analysis highlights the role of increasing density parameters in amplifying radial, circumferential, axial stresses, and effective stress within the rotating cylinder composed of anisotropic materials.

Keywords: strain; density; pressure; cylinder; angular speed; anisotropic; isotropic.

DOI: 10.1504/IJVD.2024.146776

International Journal of Vehicle Design, 2024 Vol.96 No.3/4, pp.286 - 301

Received: 27 May 2024
Accepted: 17 Jan 2025
Published online: 17 Jun 2025 *

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