Characterising gross plastic deformation in design by analysis
Li, H. and Mackenzie, D. (2005) Characterising gross plastic deformation in design by analysis. International Journal of Pressure Vessels and Piping, 82 (10). pp. 777-786. ISSN 0308-0161 (https://doi.org/10.1016/j.ijpvp.2005.06.003)
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Abstract
An investigation of three simple structures is conducted to identify and characterise the condition of gross plastic deformation in pressure vessel design by analysis. Limit analysis and bilinear hardening plastic analysis is performed for three simple example problems. It is found that previously proposed plastic criteria do not fully represent the effect of the hardening material model on the development of the plastic failure mechanism. A new criterion of plastic collapse based on the curvature of the load–plastic work history is therefore proposed. This is referred to as the Plastic Work Curvature or PWC criterion. It is shown that salient points of curvature correspond to critical stages in the physical evolution of the gross plastic deformation mechanism. The PWC criterion accounts for the effect of the bilinear hardening model on the development of the plastic mechanism and gives an enhanced plastic load when compared to the limit load.
ORCID iDs
Li, H. and Mackenzie, D. ORCID: https://orcid.org/0000-0002-1824-1684;-
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Item type: Article ID code: 5692 Dates: DateEventOctober 2005PublishedSubjects: Technology > Mechanical engineering and machinery Department: Faculty of Engineering > Mechanical and Aerospace Engineering Depositing user: Strathprints Administrator Date deposited: 22 Mar 2008 Last modified: 05 Dec 2024 01:07 URI: https://strathprints.strath.ac.uk/id/eprint/5692