Strathprints logo
Strathprints Home | Open Access | Browse | Search | User area | Copyright | Help | Library Home | SUPrimo

Plastic load evaluation for a fixed tube sheet heat exchanger subject to proportional loading

Behseta, Khosrow and Mackenzie, Donald and Hamilton, Robert (2012) Plastic load evaluation for a fixed tube sheet heat exchanger subject to proportional loading. International Journal of Pressure Vessels and Piping, 92. pp. 11-18. ISSN 0308-0161

[img] PDF
Mackenzie_D_Hamilton_R_Pure_Plastic_load_evaluation_for_a_fixed_tube_sheet_heat_exchanger_subject_to_proportional_loading_Jan_2012.pdf - Draft Version

Download (931kB)
[img]
Preview
PDF
Mackenzie_D_Plastic_load_evaluation_for_a_fixed_tube_sheet_heat_exchanger_subject_to_proportional_loading.pdf - Published Version

Download (1MB) | Preview

Abstract

The plastic load of pressurised components can be calculated based on both the twice elastic slope and tangent methods. Both methods are problematic since they rely on parameters that are localised and therefore have a strong dependency on the gradient of the stress–strain diagram in the plastic region. The criterion of curvature of plastic work is a suitable replacement for the above techniques. This method calculates total plastic work done on the structure and relates its change to the curvature of the load-plastic work plot. In this work the plastic load has been calculated for a fixed tube sheet exchanger according to curvature criteria using various hardening scenarios. Plastic loads calculated by other methods also have been reported. It has been indicated that tube sheet thickness calculated according to the classical ASME procedure can be significantly reduced when based on the curvature criteria.

Item type: Article
ID code: 37043
Keywords: plastic load, heat exchanger, fixed tube sheet , proportional loading, Mechanical engineering and machinery, Mechanical Engineering, Mechanics of Materials, Polymers and Plastics
Subjects: Technology > Mechanical engineering and machinery
Department: Faculty of Engineering > Mechanical and Aerospace Engineering
Depositing user: Pure Administrator
Date Deposited: 25 Jan 2012 09:55
Last modified: 29 Mar 2015 02:20
URI: http://strathprints.strath.ac.uk/id/eprint/37043

Actions (login required)

View Item View Item