Modelling the formation of a solid-phase joint in sheet components of Ti–6Al–4V alloy in the fabrication of spherical pressure vessels

2003 ◽  
Vol 17 (4) ◽  
pp. 309-313
Author(s):  
V K Berdin
Keyword(s):  
Solid Phase ◽  
Pressure Vessels ◽  
Spherical Pressure

Load‐carrying capacity of spherical pressure vessels weakened by butt joints

2001 ◽  
Vol 15 (2) ◽  
pp. 153-157
Author(s):  
V V Erofeev ◽  
M V Shakhmatov ◽  
M V Erofeev ◽  
V V Kovalenko
Keyword(s):  
Carrying Capacity ◽  
Pressure Vessels ◽  
Load Carrying Capacity ◽  
Butt Joints ◽  
Load Carrying ◽  
Spherical Pressure

A Review of Theoretical and Experimental Research on Various Autofrettage Processes

2018 ◽  
Vol 140 (5) ◽  
Author(s):  
Rajkumar Shufen ◽  
Uday S. Dixit
Keyword(s):  
Experimental Studies ◽  
Theoretical Models ◽  
Pressure Vessels ◽  
Future Research ◽  
Spherical Vessel ◽  
Considerable Research ◽  
Wide Range ◽  
Set Up ◽  
Compressive Residual Stresses ◽  
Spherical Pressure

Autofrettage is a metal forming technique widely incorporated for strengthening the thick-walled cylindrical and spherical pressure vessels. The technique is based on the principle of initially subjecting the cylindrical or spherical vessel to partial plastic deformation and then unloading it; as a result of which compressive residual stresses are set up. On the basis of the type of the forming load, autofrettage can be classified into hydraulic, swage, explosive, thermal, and rotational. Considerable research studies have been carried out on autofrettage with a variety of theoretical models and experimental methods. This paper presents an extensive review of various types of autofrettage processes. A wide range of theoretical models and experimental studies are described. Optimization of an autofrettage process is also discussed. Based on the review, some challenging issues and key areas for future research are identified.

Design of filament-wound spherical pressure vessels based on non-geodesic trajectories

2019 ◽  
Vol 218 ◽  
pp. 71-78 ◽  
Author(s):  
Lei Zu ◽  
Hui Xu ◽  
Qian Zhang ◽  
Xiaolong Jia ◽  
Bing Zhang ◽  
...  
Keyword(s):  
Pressure Vessels ◽  
Filament Wound ◽  
Spherical Pressure

Polycarbonate Plastic Inserts for Spherical Acrylic Plastic Shells Under Hydrostatic Loading

1981 ◽  
Vol 103 (1) ◽  
pp. 90-98 ◽  
Author(s):  
J. D. Stachiw ◽  
R. B. Dolan ◽  
D. L. Clayton
Keyword(s):  
Fatigue Life ◽  
Structural Integrity ◽  
Structural Parameters ◽  
Cyclic Fatigue ◽  
Pressure Vessels ◽  
Plastic Shell ◽  
Acrylic Plastic ◽  
Hydrostatic Loading ◽  
Spherical Pressure

An acrylic plastic spherical pressure hull incorporating polycarbonate inserts for mounting of penetrators has been built and pressure tested. The transparent hull will serve as one atmosphere cockpit in Johnson-Sea-Link #3 submersible for 2500 ft. service. Tests have been conducted with model scale polycarbonate inserts in acrylic plastic spherical pressure hulls and windows to evaluate the structural integrity and cyclic fatigue life of polycarbonate plastic inserts and acrylic shells in which they are mounted under repeated hydrostatic pressurizations. Test results indicate that the short term, long term and cyclic fatigue life of a polycarbonate insert, serving as a bulkhead for electric or hydraulic penetrators in spherical acrylic plastic pressure hulls or windows, exceeds that of the acrylic plastic shell in which it is mounted. Structural parameters of polycarbonate inserts are discussed and design criteria formulated for their utilization in manned submersibles and pressure vessels for human occupancy. Particular emphasis is placed on selection of material, seal configuration, and retainment design.

Fitness-for-service assessment of spherical pressure vessels with hot spots

2007 ◽  
Vol 84 (12) ◽  
pp. 762-772 ◽  
Author(s):  
P. Tantichattanont ◽  
S.M.R. Adluri ◽  
R. Seshadri
Keyword(s):  
Hot Spots ◽  
Pressure Vessels ◽  
Spherical Pressure

Composite Spherical Pressure Vessels With Hardening Metal Liners

1979 ◽  
Vol 101 (3) ◽  
pp. 200-206 ◽  
Author(s):  
R. F. Foral
Keyword(s):  
Transverse Isotropy ◽  
Pressure Vessels ◽  
Radius Vector ◽  
Linear Strain ◽  
Composite Sphere ◽  
Liner Material ◽  
Form Analysis ◽  
Linear Elastic ◽  
Spherical Pressure ◽  
Incremental Theory Of Plasticity

This paper presents a closed form analysis of behavior of a metal-lined composite sphere under internal pressure. Generic behavior, away from discontinuities, is considered. The composite is assumed to be linear elastic throughout, with transverse isotropy with respect to a radius vector. The liner material is elastic-plastic with assumed linear strain hardening. The analysis utilizes the J2 incremental theory of plasticity and is structured so that a typical pressurization history can be described, with proof, release, and cyclic pressurization. Numerical results are presented. The solution is used to relate performance with design parameter variation and design efficiency charts are presented.

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