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RISShear Lag Analysis in Prestressed Concrete Box Girders
Publisher: American Society of Civil Engineers
Abstract: Most studies on shear lag effect in box girders are only concerned about concentrated loads and uniformly distributed loads. In this paper, a finite-element method based on the variational principle is presented to analyze ...
Finite Beam Element Considering Shear-Lag Effect in Box Girder
Publisher: American Society of Civil Engineers
Abstract: A finite-element method considering the interaction of the bending and shear-lag deformation of a box girder was established. Meanwhile a shear-lag-induced stiffness matrix was defined. The stiffness matrices considering ...
Series Solution of Three-Dimensional Unsteady Laminar Viscous Flow Due to a Stretching Surface in a Rotating Fluid
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: An analytic technique, namely the homotopy analysis method, is applied to solve the Navier–Stokes equations governing unsteady viscous flows due to a suddenly stretching surface in a rotating ...
Analysis of Effect of Dead Loads on Natural Frequencies of Beams Using Finite-Element Techniques
Publisher: American Society of Civil Engineers
Abstract: In this paper, a conception of load-induced stiffness matrix is developed, and a beam element for using the finite-element method, which takes into consideration the stiffening effect of dead loads, is proposed. The element ...
Application of Homotopy Analysis Method in Nonlinear Oscillations
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: In this paper, we apply a new analytical technique for nonlinear problems, namely the Homotopy Analysis Method (Liao 1992a), to give two-period formulas for oscillations of conservative ...
Cracking Behavior of Environmental Barrier Coatings/Ceramic Matrix Composite System Using Acoustic Emission and Digital Image Correlation
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: An investigation into the cracking behavior of advanced environmental barrier coating/woven SiC/SiC ceramic matrix composite (CMC) system under uni-axial tension testing was performed in this study. The effect of substrate ...
A Handheld Sampler for Collecting Organic Samples from Shallow Hydrothermal Vents
Publisher: American Meteorological Society
Abstract: his study describes a new handheld sampler, specially designed to be deployed by scuba divers, to collect fluid samples from shallow hydrothermal vents. The new sampler utilizes a syringe-like titanium sampling bottle with ...
Collection of Gas-Tight Water Samples from the Bottom of the Challenger Deep
Publisher: American Meteorological Society
Abstract: AbstractA new gas-tight pair sampler was designed for the collection of gas-tight fluid samples from the hadal zone. The sampler uses two titanium bottles and one sampling valve to collect two samples at once. The sampler ...
Modeling the Interfacial Debonding Behavior Between Steel Wire and Adhesive
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: A polyethylene pipe reinforced by winding steel wires (PSP) has been widely used in the petroleum, chemical, and water supply industries. The PSP has outstanding mechanical properties due to its unique composite structure. ...
A Study of the Sealing Performance of a New High-Pressure Cone Valve for Deep-Sea Gas-Tight Water Samplers
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: The cone valve plays an important role in high-pressure sealing applications. In this paper, a new high-pressure cone valve, based on the titanium alloy poppet-to-polyetheretherketone seat sealing ...