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RISNotch-Strengthening Phenomenon Under Creep-Fatigue Loading Conditions
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: A study of the notch and frequency effects on fatigue life at high temperature is carried out using notched and unnotched plate specimens of SS 304 under stress-controlled testing conditions. ...
Experimental Characterization of the Elastic-Plastic Strain Fields at the Crack Tip Due to Cyclic Loading
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Some mechanical components cease to function satisfactorily, failing either under excessive elastic deformation or extensive plastic yielding. In the case of constrained plastification, the researcher ...
A Kt-Based Method for Calculating LCF Life of Notched Specimens
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Under cyclic loading, the effect of stress raisers on the fatigue life depends upon several parameters, the most important being the stress concentration factor, the stress level, and the ...
Notch and Temperature Effects on Crack Propagation in SS 304 Under LCF Conditions
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Crack growth behavior at room temperature and at 600°C of SS 304 plates with a central circular hole is studied using linear elastic and elastic-plastic fracture mechanics concepts. Due ...
The Effect of Induction Heating Stress Remedies on Existing Flaws in Pipes
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: One method for reducing stress corrosion cracking problems called induction Heating for Stress Improvement (IHSI) has been successful in producing compressive residual stresses on the inside surface ...
Combined Effects of Tube Projection, Initial Tube-Tubesheet Clearance, and Tube Material Strain Hardening on Rolled Joint Strength
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: The tube-to-tubesheet joint strength is measured in terms of interfacial pressure between the tube’s outer surface and tubesheet bore. The strength of a rolled joint is influenced by several ...
Experimental Investigation of Heat Exchanger Tubesheet Hole Enlargement
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: An experimental study has been conducted to evaluate the effect of roller expansion of heat exchanger tubes in enlarged tubesheet holes on joint strength, tube wall reduction (i.e., thinning), ...
Modeling the Effects of Initial Tube-Tubesheet Clearance, Wall Reduction and Material Strain Hardening on Rolled Joint Strength
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: The tube-to-tubesheet joint strength is measured in terms of residual contact pressure between the tube’s outer surface and tubesheet hole surfaces. The joint integrity is affected by several ...
Integrity of Roller-Expanded Tube-to-Tubesheet Joints With Overenlarged Tubesheet Holes
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: This paper presents the results of an experimental investigation conducted to evaluate the effect of initial tube-tubesheet diametral clearance on the integrity of roller-expanded tube-to-tubesheet ...
Residual Stresses in Roller Expanded Tube-Tubesheet Joints With Large Initial Clearance and Grooves
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Heat exchanger tube rolling introduces tensile residual stresses in the expanded part of the tube and the transition zone between the expanded and unexpanded regions of the tube. These tensile ...