scholarly journals Discussion: “Stress Analysis on Rectangular Cross-Sectional Ring Headers” (Murata, M., Utzinger, M. B., Chen, D.-H., and Nisitani, H., 1995, ASME J. Pressure Vessel Technol., 117, pp. 293–297)

1997 ◽  
Vol 119 (1) ◽  
pp. 134-134
Author(s):  
B. Eisler
Keyword(s):  
Stress Analysis ◽  
Pressure Vessel ◽  
Cross Sectional

The Design and Analysis of a Quick-Release Pressure Vessel Door Closure

1994 ◽  
Vol 208 (2) ◽  
pp. 139-145 ◽  
Author(s):  
B Smith ◽  
T H Hyde ◽  
G A Casey ◽  
N A Warrior
Keyword(s):  
Finite Element ◽  
Stress Analysis ◽  
Boundary Element ◽  
Strain Gauge ◽  
Pressure Vessel ◽  
Electrical Resistance ◽  
Quick Release ◽  
Test Pressure ◽  
Numerical Finite Element

A quick-release door closure design (Bandlock 2) is described. The paper presents a case study of the design and analysis of an existing closure geometry. Four techniques for stress analysis of the closure are described: two numerical (finite element and boundary element) an experimental (electrical resistance strain gauge) and an approximate (strength of materials) approach to the calculation of stresses. The stress results are presented in an unnormalized form for an ANSI class 600 test pressure.

scholarly journals Assessment of DBA-L Pressure Vessel Design Method by a Cylindrical Vessel with Hemispherical Ends

2019 ◽  
Vol 256 ◽  
pp. 02001
Author(s):  
Ren Xincheng ◽  
Hongjun Li ◽  
Xun Huang
Keyword(s):  
Stress Analysis ◽  
Pressure Vessel ◽  
Design Method ◽  
Design Methods ◽  
Cylindrical Vessel ◽  
Elastic Analysis ◽  
Explicit Method ◽  
Elastic Plastic ◽  
Cylindrical Pressure Vessel ◽  
Plastic Stress

Stress categorization is an essential procedure in Design by Analysis (DBA) pressure vessel design methods based on elastic analysis in ASME and EN code. It was difficult to implement especially around structural discontinuities. A new elastic analysis, DBA-L, was proposed recently to avoid stress categorization. A model of the cylindrical pressure vessel with spherical end is used to check the validity of this method by comparing with other design methods based on stress categorization procedures and elastic-plastic stress analysis from ASME and EN code. The results indicate that the DBA-L is an economic and explicit method, and can be used an alternative method to stress categorization.

Support Analysis of Horizontal Pressure Vessel Using FEA

2014 ◽  
Vol 592-594 ◽  
pp. 1220-1224
Author(s):  
Navin Kumar ◽  
Surjit Angra ◽  
Vinod Kumar Mittal
Keyword(s):  
Stress Analysis ◽  
Pressure Vessel ◽  
Theoretical Basis ◽  
Pressure Vessels ◽  
Loading Conditions ◽  
Ansys Software ◽  
Support Design ◽  
Horizontal Pressure ◽  
The Given

Saddles are used to support the horizontal pressure vessels such as boiler drums or tanks. Since saddle is an integral part of the vessel, it should be designed in such a way that it can withstand the pressure vessel load while carrying liquid along with the operating weight. This paper presents the stress analysis of saddle support of a horizontal pressure vessel. A model of horizontal pressure vessel and saddle is created in Ansys software. For the given boundry and loading conditions, stresses induced in the saddle support are analyzed using Ansys software. After analysis it is found that maximum localized stress arises at the saddle to vessel interface near the saddle horn area. The results obtained shows that the saddle support design is safe for the given loading conditions and provides the theoretical basis for furthur optimisation.

Elastic-Plastic Stress Analysis of Pressure Vessels

2012 ◽  
Author(s):  
Yang-chun Deng ◽  
Gang Chen
Keyword(s):  
Internal Pressure ◽  
Stress Analysis ◽  
Strain Hardening ◽  
Pressure Vessel ◽  
Plastic Instability ◽  
Pressure Vessels ◽  
Structural Deformation ◽  
Elastic Plastic ◽  
Thin Walled ◽  
Plastic Stress

To save material, the safety factor of pressure vessel design standards is gradually decreased from 5.0 to 2.4 in ASME Boiler and Pressure Vessel Codes. So the design methods of pressure vessel should be more rationalized. Considering effects of material strain hardening and non-linear structural deformation, the elastic-plastic stress analysis is the most suitable for pressure vessels design at present. This paper is based on elastic-plastic theory and considers material strain hardening and structural deformation effects. Elastic-plastic stress analyses of pressure vessels are summarized. Firstly, expressions of load and structural deformation relationship were introduced for thin-walled cylindrical and spherical vessels under internal pressure. Secondly, the plastic instability for thin-walled cylindrical and spherical vessels under internal pressure were analysed. Thirdly, to prevent pressure vessels from local failure, the ductile fracture strain of materials was discussed.

Circular Braiding Process Simulation for a Pressure Vessel

2014 ◽  
Author(s):  
Johan H. van Ravenhorst ◽  
Remko Akkerman
Keyword(s):  
Automotive Industry ◽  
Pressure Vessel ◽  
Pressure Vessels ◽  
Design Guidelines ◽  
Filament Winding ◽  
Series Production ◽  
Cross Sectional ◽  
Mandrel Diameter ◽  
Filament Winding Process ◽  
High Repeatability

Pressure vessel manufacturing is currently dominated by the filament winding process. When higher production rates are required, circular braiding can be considered as an alternative because hundreds of yarns are deposited simultaneously from interlacing spools. The process has a high repeatability and is suited for automated series production, as is currently shown with the production of a-pillars and rockers in the automotive industry. Important manufacturing constraints related to the overbraiding of cylindrical pressure vessels are to avoid excessive jamming of the braid, typically occurring at a small mandrel radius, and to achieve a 100% cover factor at the largest mandrel diameter. In this paper, design guidelines for braiding of cylindrical pressure vessels are proposed. It is shown that a proper choice of the yarn cross-sectional area size and of yarn width-to-thickness aspect ratio can improve the design feasibility, but an adjustment of the braid angle can be required as well.

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