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Centrifuge Modeling of Ship Impact Loads on Bridge Pile Foundations
Publisher: American Society of Civil Engineers
Abstract: Bridges that cross navigable waterways may be affected by accidental ship impacts. To better characterize ship impact loads on bridge pier structures, a comprehensive centrifuge model test program involving 48 ship impact ...
Contours for Planar Cracks Growing in Three Dimensions: Influence of Kinetic Energy
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Dynamic steadystate growth in 3D of a semiinfinite plane brittle crack in isotropic elastic solids is considered. Loads cause growth by translating on the crack surfaces at constant, subcritical speed. An analytical solution ...
Transient Plane Wave Solutions to Homogeneous Equations of Orthotropic Thermoelasticity With Thermal Relaxation: Illustration
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Complementary (homogeneous) transient solutions for orthotropic thermoelasticity with thermal relaxation admit plane waves that propagate in a principal plane without spatial attenuation, but with ...
Exact Dynamic Surface Response for Sub and Through-Surface Slip
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: The motion of edge dislocations and slip on fault planes are important mechanisms involving sub and through-surface slip. Here exact solutions for largely arbitrary in-plane slip in a half plane ...
Use of Vacuum for the Stabilization of Dry Sand Slopes
Publisher: American Society of Civil Engineers
Abstract: Vacuum is proposed as a means for rescuing soil slopes showing signs of impending failure. Two aspects associated with the proposed method were studied; namely, the theory of airflow through dry soils and the effectiveness ...
Moderate Axisymmetric Deformations of Optical Membrane Surfaces
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Large deformable membranes are currently used as optical reflector surfaces for solar concentrators. In this paper, we study moderate axisymmetric deformations of optical membrane surfaces and ...
An Ultrasonic Pressure Gage
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: The transit time of short ultrasonic pulses in solid rods is used to measure pressures throughout the fluid range. Self-excited regenerating circuits are used. Measurements to 3500 bar with an ...
Effects of Mixed-Mode and Crack Surface Convection in Rapid Crack Growth in Coupled Thermoelastic Solids
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Two Green’s function problems for rapid two-dimensional steady-state crack growth governed by fully coupled (dynamic) linear thermoelasticity are analyzed. In Problem A, normal and in-plane shear ...
Transient Green’s Function Behavior for a Prestressed Highly Elastic Half-Space
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: A plane-strain study of a prestressed isotropic compressible neo-Hookean half-space subjected to shear and normal surface loads is performed. The loads are either stationary and applied for an ...
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