scholarly journals Technical Appendix to Cryogenic Pressure Vessels

1990 ◽  
Author(s):  
G.T. Mulholland ◽  
R.A Rucinski
Keyword(s):  
Pressure Vessels ◽  
Cryogenic Pressure Vessels

Cold Stretching of Cryogenic Pressure Vessels From Austenitic Stainless Steels

2011 ◽  
Author(s):  
Jinyang Zheng ◽  
Abin Guo ◽  
Cunjian Miao ◽  
Ping Xu ◽  
Jian Yang ◽  
...  
Keyword(s):  
Stainless Steels ◽  
Austenitic Stainless Steels ◽  
Pressure Vessels ◽  
High Rate ◽  
Fatigue Properties ◽  
Numerical Studies ◽  
Deformation Hardening ◽  
Considerable Work ◽  
Cryogenic Pressure Vessels ◽  
Strength Improvement

Austenitic stainless steel (ASS) exhibits considerable work-hardening upon deformation while retaining the characteristics of the material. The high rate of austenite deformation hardening was utilized by cold stretching (CS) of cryogenic pressure vessels. A few percent deformation will give the vessel a considerable and homogeneous yield strength improvement, and the wall thickness may be greatly reduced. The authors have conducted extensive experimental and numerical studies on CS of cryogenic pressure vessels from ASS. A summary of our work as well as a brief introduction of the history, standards, safety, and advantages of CS are given in this paper. What should be further investigated, such as fatigue properties of cold stretched ASS especially under cryogenic temperature, design of cold stretched transportable cryogenic vessels based on life, are also presented.

scholarly journals Performance of ferritic steel 16MnDR using improved local fracture criterion

2021 ◽  
Vol 260 ◽  
pp. 03023
Author(s):  
Jianhua Pan ◽  
Yan Wang ◽  
Mingjie Guo
Keyword(s):  
Ferritic Steel ◽  
Influence Factors ◽  
Pressure Vessels ◽  
Specimen Thickness ◽  
Fracture Toughness Test ◽  
Element Analysis ◽  
Local Fracture Criterion ◽  
Different Temperatures ◽  
C Value ◽  
Cryogenic Pressure Vessels

Based on the finite element analysis and fracture toughness test data, this paper verifies the improved Ritchie-Knott-Rice (RKR) local failure criterion using 16MnDR ferritic steel for cryogenic pressure vessels. This criterion's applicability to 16MnDR was verified to verify fracture toughness's different influence factors in the ductile-to-brittle transition temperature (DBTT) region, such as specimen thickness (TST) and temperature. The results indicate that the (4δt, σ22c) criterion applies to 16MnDR steel and effectively transfers the minimum Jc value between samples of different temperatures and thickness.

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