Shakedown analysis of modified Bree problems involving thermal membrane stress and generalized loading conditions
Bao, Hongchen and Shen, Jun and Liu, Yinghua and Chen, Haofeng (2021) Shakedown analysis of modified Bree problems involving thermal membrane stress and generalized loading conditions. International Journal of Pressure Vessels and Piping, 192. 104432. ISSN 0308-0161 (https://doi.org/10.1016/j.ijpvp.2021.104432)
Preview |
Text.
Filename: Bao_etal_IJPVP_2021_Shakedown_analysis_of_modified_Bree_problems_involving_thermal_membrane_stress.pdf
Accepted Author Manuscript License: Download (931kB)| Preview |
Abstract
For industrial components such as pressure vessels and piping systems, it is important to determine the shake- down domains of structures under complex variable thermo-mechanical loads to avoid low cycle fatigue due to alternating plasticity or incremental plastic collapse caused by ratcheting. In this paper, the interaction among three common types of stresses are considered based on a plane model, namely, mechanical membrane stress, thermal membrane stress and thermal bending stress. Strict shakedown analysis is performed based on the Linear Matching Method under multiple variable mechanical and thermal loads. Three-dimensional shakedown do- mains for three types of modified Bree problems involving thermal membrane stress and generalized loading conditions are given for the first time, and the three-dimensional shakedown boundaries are expressed as two- dimensional parametric equations by introducing a new parameter called "secondary membrane bending ratio" R. By comparing the 3S criterion plane with the newly obtained 3D shakedown boundaries, the conservatism and non-conservatism of the 3S criterion are discussed under different loading paths. As an extension of the 3S criterion, a new and economical criterion on elastic shakedown assessment is proposed for generalized thermo-mechanical loading. The proposed shakedown boundary parametric equations and shakedown checking method can provide guidance for engineering design and safety assessment.
ORCID iDs
Bao, Hongchen, Shen, Jun, Liu, Yinghua and Chen, Haofeng ORCID: https://orcid.org/0000-0001-6864-4927;-
-
Item type: Article ID code: 76349 Dates: DateEvent31 August 2021Published28 April 2021Published Online26 April 2021AcceptedSubjects: Technology > Mechanical engineering and machinery Department: Faculty of Engineering > Mechanical and Aerospace Engineering
Strategic Research Themes > Ocean, Air and SpaceDepositing user: Pure Administrator Date deposited: 06 May 2021 12:48 Last modified: 11 Nov 2024 13:04 URI: https://strathprints.strath.ac.uk/id/eprint/76349