# Solution for Second-Moment Reliability Index

*This paper presents a general method for determination of the magnitude of the second-moment reliability index in a probabilistic design procedure. The minimum distance from the origin...*

Added Mass of Sphere Starting Upward Near Floor

*A method for suddenly releasing a buoyant sphere under water and measuring its acceleration was used to get experimental added-mass coefficients a short time after release. To show the...*

Subroutine for Settling Velocities of Spheres

*Numerous engineering studies require the settling velocity of particles in quiescent water. The problem is complicated by having to determine the Reynolds number-drag coefficient relationship...*

Channel Flow Over Permeable Beds of Graded Spheres

*Tests were carried out to determine the velocity distribution and the hydraulic roughness in flows over 20 permeable beds made up of different sizes and gradings of spherical particles....*

Concrete Properties at Ocean Depths

*The results of three studies are reported herein on seawater absorption and compressive strength of 6-in. x 12-in. (152-mm x 305-mm) concrete control cylinders subjected to simulated ocean...*

Stresses in Anisotropic Nonhomogeneous Sphere

*The influence of modulus variations on propellant grain stress distribution deserves attention as the modulus variability generally leads to a significant structural improvement. Taking...*

Motion of Sphere Rising in Turbulent Flow

*This paper presents new and corrected data on the critical shear stresses required to initiate erosion as a function of type and amount of clay, pore and eroding fluid composition, and...*

Minority Employmentâ€”A Job for ASCE

*It is suggested that engineering has been a low priority concern of minority leaders, but that many minority individuals would find engineering a rewarding career. Further, if coming changes...*

Accelerated Motion of a Spheroid in Viscous Fluid

*The exact solution of the equation of motion of a spheroid accelerated along its axis of symmetry to an arbitrarily applied force in a viscous fluid of infinite extent is obtained. The...*

Wave Forces on Submerged Objects of Symmetry

*Stokes' linear irrotational wave theory is employed to obtain expressions for wave forces on submerged objects of symmetry, e.g., a hemisphere or a sphere, a horizontal halfcylinder...*

Intersecting Titanium Spheres for Deep Submersibles

*An evaluation of a bispherical pressure hull configuration and the investigation of the use of ceramics in pressure vessels is presented. A one-fourteenth scale model made of titanium...*

Small Vibrations of Uniformly Compressed Isotropic Elastic Solids

*The effect of uniform external pressure on the small amplitude vibration frequencies of solid isotropic elastic bodies is examined herein. Variation with pressure of small amplitude vibration...*

Fluid Force Analysis and Accelerating Sphere Tests

*An adequate expression for the fluid force on an accelerating body depends on whether the history of motion is repetitive. The conventional form for periodic motion consists of the sum...*

Drag Coefficients in Nonsteady Turbulent Flow

*Drag coefficients for spheres in nonsteady turbulent flow are found to be functions of the acceleration number, and either the particle Reynolds number or the relative turbulence intensity...*

Fluid-Dynamic Consideration of Bottom Materials

*Bottom materials often involve clay-water suspensions which evidence complex rheology. Studies of the non-Newtonian behavior of kaolin are reported herein. Concentric viscometer analysis...*

Concrete Hulls for Undersea Applications

*The experimental and analytical studies initiated at the Naval Civil Engineering Laboratory (NCEL) since 1964 have shown that concrete is not only a feasible but a desirable construction...*

Dynamic Response of Submerged Sphere

Spherical Structural System in Fluid Media

Gravity and Surface-Load Stresses in Spheres

*Stresses due to gravity are reported for a solid sphere and for a hollow sphere with an inner diameter one-half its outer diameter. The stresses were obtained using the freezing method...*

Impact of Spheres on Ice

*An oscilloscopic method for determining the coefficient of restitution,*e , by impact of spheres on ice was developed. Teflon, acrylic, nylon,...

Return to search