Gross plastic deformation of axisymmetric pressure vessel heads
Camilleri, Duncan and Hamilton, Robert and Mackenzie, Donald (2006) Gross plastic deformation of axisymmetric pressure vessel heads. Journal of Strain Analysis for Engineering Design, 41 (6). pp. 427-441. ISSN 0309-3247 (https://doi.org/10.1243/03093247JSA163)
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Abstract
The gross plastic deformation and associated plastic loads of four axisymmetric torispherical pressure vessels are determined by two criteria of plastic collapse: the ASME twice elastic slope (TES) criterion and the recently proposed plastic work curvature (PWC) criterion. Finite element analysis was performed assuming small and large deformation theory and elastic–perfectly plastic and bilinear kinematic hardening material models. Two plastic collapse modes are identified: bending-dominated plastic collapse of the knuckle region in small deformation models and membrane-dominated plastic collapse of the cylinder or domed end in large deformation models. In both circumstances, the PWC criterion indicates that a plastic hinge bending mechanism leads to gross plastic deformation and is used as a parameter to identify the respective plastic loads. The results of the analyses also show that the PWC criterion leads to higher design loads for strain hardening structures than the TES criterion, as it takes account of the effect of strain hardening on the evolution of the gross plastic deformation mechanism.
ORCID iDs
Camilleri, Duncan, Hamilton, Robert ORCID: https://orcid.org/0000-0002-3504-9774 and Mackenzie, Donald ORCID: https://orcid.org/0000-0002-1824-1684;-
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Item type: Article ID code: 7760 Dates: DateEventAugust 2006PublishedSubjects: Technology > Mechanical engineering and machinery Department: Faculty of Engineering > Mechanical and Aerospace Engineering Depositing user: Strathprints Administrator Date deposited: 24 Mar 2009 11:23 Last modified: 18 Oct 2024 00:18 URI: https://strathprints.strath.ac.uk/id/eprint/7760