Abstract: A steel bullet in the form of a right circular cylinder which strikes a 10-mil-thick plane lead target at 45 deg incidence and at 2700 fps acquires on its front surface a series of ...

Abstract: Many practical devices involve high-speed collapse of shells of circular cross section, In all of the devices the stability of the collapse motion is of interest and in some it is essential ...

Abstract: When a load, for instance a heavy roller, moves slowly along the surface of a solid mass of soft material, a “hump” deformation is often observed to precede it. The process of formation ...

Abstract: Successful operation of many practical devices that involve high-speed implosion of shells of circular cross section requires a stable collapse motion. In this paper, the dynamic buckling of ...

Abstract: Rods impacting a rigid target at velocities sufficient to produce several percent axial strain are found to buckle plastically with a fairly reproducible wavelength. This phenomenon is investigated ...

Abstract: Lapping machines are widely used for the planar grinding of both metals and ceramics. In principle, they resemble the many pin-on-disk machines that have been constructed for tribology studies. ...

Abstract: Aqueous solutions of inorganic salts are known to be effective grinding lubricants for titanium. Early work by Professor Shaw at MIT drew particular attention to the use of phosphate salts, ...