Constraints on Moving Strong Discontinuity Surfaces in Dynamic Plane-Stress or Plane-Strain Deformations of Stable Elastic- ideally Plastic Materials

For dynamic deformations of compressible elastic-ideally plastic materials in th

Steady-State Behavior of Nonlinear Dynamic Vibration Absorber 1

It is shown that the optimum dynamicvibration-absorber system for variable frequency excitation is that which has a hardening main spring together with a softening absorber spring

Influence of Porosity on Plane Strain Tensile Crack-Tip Stress Fields in Elastic-Plastic Materials: Part ll

This paper continues the investigation of Drugan and Miao (199

Theoretical basis for extrapolation of calibration data of PTC 6 throat tap nozzles,

Introduction This paper was developed because page and space limitations prevented us from including derivations in our original paper We have also tried to include all pertinent information on flat plate boundary layer theory, which is the basis for our method of predicting the coefficient of discharge at higher Reynolds number using calibration data at lower Reynolds numbers. Theoretical numerical values needed for calculations were taken from Schlichtin

Noris Gallandat Thermo-economic Limitations of Ambient Heat Rejection in Vertical Fin Arrays With Buoyancy-Driven Flow Enhancement Through the Chimney Effect

This paper presents the thermo-economic limits of ambient heat rejection in vertical fin arrays with buoyancy-driven flow enhancement through the chimney effect. A onedimensional semi-analytical thermo-fluidic model is developed to assess the cooling power enhancement of the proposed heat sink design. A bi-objective optimization is performed utilizing genetic algorithm to present the tradeoffs between the cost and the thermal performance of a heat sink. For the considered baseplate geometry, the maximal cooling power without a chimney amounts 1540 W at a heat flux of 1.03 W/cm 2 . By adding a chimney up to 2.5 m high, the cooling power is increased by 46% to 2250 W at a heat flux of 1.50 W/cm 2

Energy release rates and related balance laws in linear elastic defect mechanics

A simple and direct derivation of certain balance (or conservation) laws for linear dynamic elasticity is presented including nonhomogeneities, thermal effects, anisotropy, and body forces. Additionally, the connection between the balance laws and energy release rates for defect motions is established

A. F. MILLS Numerical Solutions of the Navier-Stokes Equations in Inlet Regions

1 Numerical solutions of the Navier-Stokes equations are obtained for steady two-dimensional flow in the inlet region of both a tube and a channel. The entering flow is considered to be either uniform (u = constant, v = 0