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RISA Simplified Analytical Model for Estimation of the Initial Waterhammer Pressure and Force on a Circular Tube
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: A simplified analytical model is developed for estimating the initial waterhammer pressure and force on a circular tube when a plane decompression wave, parallel to its axis, passes over it. The simplified analysis ...
Evaluation of a Numerical Analysis Model for the Transient Response of Nuclear Steam Generator Secondary Side to a Sudden Steam Line Break
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: This paper presents an evaluation of the applicability of a numerical analysis model to the transient thermal-hydraulic response of steam generator (SG) secondary side to blowdown following a steam line break (SLB) at a ...
Transient Hydraulic Response of a Pressurized Water Reactor Steam Generator to a Feedwater Line Break Using the Nonflashing Liquid Flow Model
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: In this study, a computational fluid dynamics (CFD) analysis of the transient flow field inside the secondary side of a nuclear reactor steam generator (SG) during blowdown following a feedwater line break (FWLB) accident ...
Stress Intensity Factor and Elastic Crack Opening Displacement Solutions of Complex Cracks in Pipe Using Elastic Finite Element Analyses
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: In the present paper, the closedform expressions for the stress intensity factors (SIFs) and the elastic crack opening displacements (CODs) of complexcracked pipes are derived based on the systematic threedimensional (3D) ...
Prediction of Column Axial Forces in Inverted V-braced Seismic Steel Frames Considering Brace Buckling
Publisher: American Society of Civil Engineers
Abstract: Brace buckling in inverted-V-braced frames induces the vertical unbalanced force. The columns in the braced bay should be designed, per the capacity design concept, to remain elastic for gravity load actions and additional ...
Development of an Areal Elderly Migration Model Considering Spatial Interaction
Publisher: American Society of Civil Engineers
Abstract: An areal elderly migration model (AEMM) was developed to assess the demand of regional development projects targeted towards elderly people. The AEMM was theoretically developed with adaptation of the gravity model to ...
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, ...
Numerical Analysis of Subcooled Water Flashing Flow From a Pressurized Water Reactor Steam Generator Through an Abruptly Broken Main Feed Water Pipe
Publisher: American Society of Mechanical Engineers (ASME)
Abstract: A computational fluid dynamics (CFD) analysis was performed to investigate the hydraulic response of the flow field inside the pressurized water reactor (PWR) steam generator (SG) secondary side and the connected part of ...
Multifunctional Three-Dimensional Curvilinear Self-Folding of Glassy Polymers
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: The selective light absorption of prestretched thermoplastic polymeric films enables wireless photothermal shape morphing from two-dimensional Euclidean geometry of films to three-dimensional (3D) curvilinear architectures. ...