Thin‐Walled Space Frames. I: Large‐Deformation Analysis Theory

1991 ◽  
Vol 117 (8) ◽  
pp. 2499-2520 ◽  
Author(s):  
Hong Chen ◽  
George E. Blandford
Keyword(s):  
Large Deformation ◽  
Deformation Analysis ◽  
Large Deformation Analysis ◽  
Space Frames ◽  
Analysis Theory ◽  
Thin Walled

Expressions of Load and Structural Deformation Relationship for Cylindrical and Spherical Vessels Under Internal Pressure

2010 ◽  
Author(s):  
Yang-chun Deng ◽  
Gang Chen
Keyword(s):  
Internal Pressure ◽  
Large Deformation ◽  
Pressure Vessel ◽  
Small Deformation ◽  
Plastic Instability ◽  
Structural Deformation ◽  
Deformation Analysis ◽  
Large Deformation Analysis ◽  
Thin Walled ◽  
Deformation Relationship

Large deformation analysis for pressure vessel is much more complex than small deformation analysis, therefore, right now, there is no common recognized direct solution for load bearing capacity of pressure vessel yet, and this restrict the application of large deformation analysis in pressure vessel design. This paper based on elastic-plastic theory and considered material strain hardening and structural deformation effects, expressions of load and structural deformation relationship were the first time being derived for cylindrical and spherical vessels under internal pressure. And its practical value is equivalent to principal stress equations of thin-walled cylindrical and spherical vessels with considering non-linear structural deformation effect. Based on the study above and by introducing true stress-strain relationship of materials, analytical solutions of plastic instability pressure for thin-walled cylindrical and spherical vessels were derived.

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