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RISA Re-Autofrettage Procedure for Mitigation of Bauschinger Effect in Thick Cylinders
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: A manufacturing procedure for enhancing residual stresses and thereby improving fatigue lifetime and fracture resistance of pressure vessels is proposed. The procedure involves initial autofrettage; ...
Autofrettage of Open-End Tubes—Pressures, Stresses, Strains, and Code Comparisons
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Autofrettage is used to introduce advantageous residual stresses into pressure vessels. The Bauschinger effect can produce less compressive residual hoop stresses near the bore than are predicted ...
Bauschinger Effect Design Procedures for Compound Tubes Containing an Autofrettaged Layer
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Autofrettage is used to introduce advantageous residual stresses into pressure vessels. The Bauschinger effect can produce less compressive residual hoop stresses near the bore than are predicted ...
A Critical Examination of Sachs’ Material-Removal Method for Determination of Residual Stress
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Sachs’ method is an experimental procedure used primarily in the determination of residual stresses in autofrettaged thick cylinders. In its usual form it involves fixing axial and hoop direction ...
Second Special Issue on Pressure Vessels Technology Applied to Gun Tubes
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: The previous open conference with a focus on large caliber gun tube design took place in Oxford, England, in 2002; this gave rise to the August 2003 special issue of JPVT. A second Oxford ...
A Critical Examination of Stresses Within and Around Coatings
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: In many cases apparently complex interactions between a coating and a substrate may be reduced to a combination of two simple loading scenarios, namely, constant direct stress and linearly ...
Stress Intensity Factors for Internal Straight and Curved-Fronted Cracks in Thick Cylinders
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Fatigue and leak-before-break calculations for a pressure vessel require knowledge of the stress intensity factor at the deepest point of a straight- or curved-fronted (semi-elliptical) surface ...
Residual Stresses and Lifetimes of Tubes Subjected to Shrink Fit Prior to Autofrettage
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: There is increasing interest in the use of compound cylinders that combine shrink fit and autofrettage, taking account of Bauschinger effect. Previous work has analyzed material removal from a ...
Stress and Fracture Analysis of Ceramic Lined, Composite or Steel Jacketed Pressure Vessels
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Stress and fracture analysis of ceramic-lined cannon pressure vessels is described, for a Si3N4 or SiC liner and A723 steel or carbon-epoxy jacket and with an initial residual interface pressure ...
Finite Element Investigation of Bauschinger Effect in High-Strength A723 Pressure Vessel Steel
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: The Bauschinger effect has been evaluated in high-strength pressure vessels. A simple initial test suggested that a biaxial Bauschinger effect was present and that it was different from previously ...