Abstract: Mechanisms for the formation of bead defects, such as humping, gouging, rippling, and other unexpected surface patterns, encountered in welding or drilling are interpreted and reviewed from ...

Abstract: In this study, a general, analytical solution of a steady creeping or Stokes flow impinging on a stationary spherical cap-shaped bubble on a solid flat surface is provided. The phenomena usually ...

Abstract: The theoretical derivation proposed in this paper uses a specific pseudoinverse technique baesd on an incomplete set of measured modes to satisfy the orthogonality condition. Unlike others, this method demonstrates that ...

Abstract: In this paper, a modified shadow moiré technique is applied to measure surface topology of wafers. When a wafer is sliced, either by an inner-diameter (ID) saw or wiresaw, the surface needs ...

Abstract: The strength of steel tubes used in offshore construction is often limited by local and global stability considerations. We propose a new composite tube, which consists of two concentric steel tubes with polymer concrete ...

Abstract: A new composite tube consisting of two concentric steel tubes with polymer concrete sandwiched in between them was studied for its behavior under axial compressive loading. Twenty-six small-scale models of short composite ...

Abstract: This study presents a numerical scenario for the effect of thermocapillary convection on the transient, two-dimensional molten pool shape during welding or melting. Tracing the melting process ...

Abstract: The molten pool shape and thermocapillary convection during melting or welding of metals or alloys are self-consistently predicted from scale analysis. Determination of the molten pool shape and ...

Abstract: A biofilter packed with immobilized