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RISCombining Plane Wave Expansion and Variational Techniques for Fast Phononic Computations
Publisher: American Society of Civil Engineers
Abstract: In this paper, the salient features of the plane wave expansion (PWE) method and the mixed variational technique are combined for the fast eigenvalue computations of arbitrarily complex phononic unit cells. This is done ...
Seepage Effects on Dune Dimensions
Publisher: American Society of Civil Engineers
Abstract: This note presents an experimental study of seepage effects on the dimensions of a dune: its height, length and lee-side slope. The critical slope of a cohesionless material was found to be related to the ratio of the ...
Effects of Temperature Drop on Ultralow Cycle Fatigue of G20Mn5QT Cast Steel
Publisher: ASCE
Abstract: Cast steels are inherently suitable for fabricating complex joints in steel constructions. These joints may suffer from ductile fracture under ultralow cycle fatigue (ULCF) loadings during earthquakes. This problem could ...
Reliability Analysis for Structures With Multiple Temporal and Spatial Parameters Based on the Effective First-Crossing Point
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: For efficiently estimating the dynamic failure probability of the structure with the multiple temporal and spatial parameters, a transferred limit state function technique is first proposed in this paper. By finding the ...
A Simplified Strategy to Address Effects of the Drop of Temperature on the Gurson-Tvergaard-Needleman Model for G20Mn5QT Cast Steels
Publisher: ASCE
Abstract: G20Mn5QT cast steels have been widely used in cast steel connections, which may suffer from ductile fracture at ambient temperature. Northern climates make the problem even worse because the ductility of the cast steels ...
Experimental and Simulation Study on Seismic Behavior of Beam-Column Joints with Cast Steel Stiffener
Publisher: American Society of Civil Engineers
Abstract: A series of six full-scale cruciform H-shaped beam to square tube column joint with cast steel stiffener specimens was tested under cyclic loading to study the seismic behavior of the new joints. A parametric numerical ...
Experimental and Simulation Study on Seismic Behavior of Beam-Column Joints with Cast Steel Stiffener
Publisher: American Society of Civil Engineers
Abstract: A series of six full-scale cruciform H-shaped beam to square tube column joint with cast steel stiffener specimens was tested under cyclic loading to study the seismic behavior of the new joints. A parametric numerical ...
Material Parameters in the GTN Model for Ductile Fracture Simulation of G20Mn5QT Cast Steels
Publisher: ASCE
Abstract: Material parameters in the Gurson, Tvergaard and Needleman (GTN) model were calibrated for G20Mn5QT cast steels based on tests of tension coupons and smooth notched tensile specimens, and complementary FEA. The mesh ...
Influence of Elements in Steel With Anode Plasma Electrolytic Boriding on Hardness Gradient and Tribological Properties
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: The influence of elements in steel on anode plasma electrolytic boriding has been studied. The modified layers and surfaces on steel samples were analyzed by a scanning electron microscope, an X-ray diffractometer, a surface ...
Effect of Corrosion on the Fatigue Behavior of G20Mn5QT Cast Steel Welded Connections and Fatigue Life Evaluation Model
Publisher: American Society of Civil Engineers
Abstract: Corrosion fatigue experiments were conducted on a welded connection constructed of G20Mn5QT cast steel in 3.5% by weight NaCl solution. The corrosion fatigue fracture mechanism of the welded connection was determined. ...