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RISApplicability of Net-Section Collapse Load Approach to Multiple-Cracked Pipe Assessment: Numerical Study
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: In this paper, applicability of net-section collapse load approach to circumferential multiple-cracked pipe assessment is investigated using finite element (FE) damage analysis. The FE damage analysis based on the ...
Finite Element Welding Residual Stress Analysis of CRDM Penetration Nozzles
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: This article investigates numerically welding residual stress distributions of a tube with J-groove weld in control rod drive mechanisms of a pressurized nuclear reactor vessel. Parametric study is performed for the effect ...
Numerical Study of Laser Shock Peening Effects on Alloy 600 Nozzles With Initial Residual Stresses
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: This paper investigates the effect of initial residual stress and prestrain on residual stresses due to laser shock peening for Alloy 600 using numerical simulation. For simulation, the strain rate dependent Johnson–Cook ...
Comparison of Ductile Tearing Simulation With Complex Cracked Pipe Test Data
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: This paper presents numerical ductile tearing simulation results of four complex cracked pipes made of two materials, performed at Battelle, Columbus, OH. In ductile tearing simulation, stress-modified fracture strain model ...
Engineering Approach Based on Reference Stress Concept for Calculating J and Crack Opening Displacement of Complex-Cracked Pipes
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: In this study, an engineering approach for estimations of fracture mechanics parameters, i.e., J-integral and crack opening displacement (COD), for complex-cracked pipes was suggested based on reference stress concept, ...
Plastic Collapse Stresses Based on Flaw Combination Rules for Pipes Containing Two Circumferential Similar Flaws
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: When discrete multiple flaws are in the same plane, and they are close to each other, it can be determined whether they are combined or standalone in accordance with combination rules provided by fitness-for-service (FFS) ...
Plastic Collapse Stresses Based on Flaw Combination Rules for Pipes Containing Two Circumferential Similar Flaws
Publisher: American Society of Mechanical Engineers (ASME)
Abstract: When discrete multiple flaws are in the same plane, and they are close to each other, it can be determined whether they are combined or standalone in accordance with combination rules provided by fitness-for-service (FFS) ...
Special Issue: Recent Advances in Design and Structural Integrity of Pressure Vessels, Piping and Components
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: The design and structural integrity evaluation of pressure retaining equipment are crucial elements in the nuclear, oil, and gas industries. Accordingly, many research has been done to improve the accuracy of design and ...
Evaluation of Deformation and Failure Behaviors of Nuclear Piping Components Under Beyond Design Basis Seismic Loads Using a Simulated Specimen
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: This study designed a specimen that simulates the deformation and failure behaviors of the piping components in nuclear power plants (NPPs) under excessive seismic loads beyond the design basis, and conducted ultimate-strength ...
Benchmark Analysis of Ductile Fracture Simulation for Circumferentially Cracked Pipes Subjected to Bending
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: To predict fracture behavior for ductile materials, some ductile fracture simulation methods different from classical approaches have been investigated based on appropriate models of ductile fracture. For the future use ...