Results 221 to 230 of about 284,250 (248)

Notes on photoelasticity of impact phenomena

International Journal of Mechanical Sciences, 1983
Abstract Attenuation and interference of stress waves affect fringe propagation velocities and produce transitory sources and sinks of dynamic fringes. A simplified wave model serves to explain the basic phenomena involved. Striker impacts also create quasi-static fringes which are distinguishable within the dynamic pattern and may lead to an ...
M.L. Meyer, D.A.W. Taylor
openaire   +1 more source

Drop-Liquid Impact Phenomena

2002
A brief survey of several phenomena occurring when a liquid drop impacts the surface of a pool of the same liquid is presented. The review touches upon drop oscillations, liquid-liquid contact, sound emission, bubble entrapment, and vorticity generation.
openaire   +2 more sources

SPLASHING PHENOMENA DURING LIQUID DROPLET IMPACT

Atomization and Sprays, 2010
Splashing is a phenomenon often observed during liquid droplet impact onto a solid surface. The threshold of splashing is known to be related to droplet size, impact velocity, and physical properties of the liquid, but the mechanisms that initiate splashing are not understood completely.
Jie Liu, Henry Vu, Sam S. Yoon, Richard A. Jepsen, Guillermo Aguilar   +4 more
openaire   +1 more source

Random walk model of impact phenomena

Physica A: Statistical Mechanics and its Applications, 1984
A model of the permanent distortion of an elastic material due to high velocity projectile impact is described using a random walk model, with unusual temporal statistics, of the transport of dislocations. The biased motion of dislocations in a stress field and also in a random environment is considered.
West, Bruce J., Shlesinger, Michael
openaire   +2 more sources

The scaling of impact phenomena

International Journal of Impact Engineering, 1987
Abstract A basis for scaling laws for impact phenomena is the approximation of the actual problem with a point-source problem. Point-source solutions are characterized by a single scalar coupling-parameter measure aU μδυ of the radius a , velocity U and mass density δ of the impactor.
openaire   +1 more source

Models of high velocity impact phenomena

International Journal of Impact Engineering, 1993
Abstract Models of craters formed by impacts at velocities of up to 24.5 km/sec have been computed using the Smooth Particle Hydrodynamics, MESA, EPIC and CALE codes. These modeling efforts are compared to data obtained from the Hypervelocity Microparticle Impact project at Los Alamos using the van de Graaff accelerator.
C.A. Wingate, R.F. Stellingwerf, R.F. Davidson, M.W. Burkett   +3 more
openaire   +1 more source

Analysis of oblique hypervelocity impact phenomena

Advanced Marine Systems Conference, 1988
This paper describes the results of an experimental investigation of phenomena associated with the oblique hypervelocity impact of spherical projectiles on multisheet aluminum structures. A model that can be employed in the design of meteoroid and space debris protection systems for space structures is developed.
WILLIAM SCHONBERG, ROY TAYLOR
openaire   +1 more source

Physics of Ion Impact Phenomena

1991
1. Introduction.- 1.1 The Need to Study Ion Impact Phenomena.- 1.2 Some Contemporary Ion Production Techniques.- 1.2.1 Electron Impact (EI) Sources.- 1.2.2 The Electron Bombardment Ion Source (EBIS).- 1.2.3 The Electron Cyclotron Resonance Ion Source (ECRIS).- 1.2.4 The 'Ion Hammer' Technique.- References.- 2. Ion Formation Processes: Ionization in Ion-
openaire   +1 more source

Impact of Aging Phenomena on Soft Error Susceptibility

2011 IEEE International Symposium on Defect and Fault Tolerance in VLSI and Nanotechnology Systems, 2011
In this paper we address the issue of analyzing the effects of negative bias temperature instability (NBTI) on ICs' soft error susceptibility. We show that NBTI reduces significantly the critical charge of nodes of both combinational and sequential circuits during their in-field operation.
ROSSI, DANIELE, OMANA, MARTIN EUGENIO, METRA, CECILIA, A. Paccagnella   +3 more
openaire   +4 more sources

Projectile Impact Phenomena and Existing Studies

2017
For the local response of the concrete target hit by a non-deformable projectile, three successive phenomenological responses are usually observed in test with the gradually increasing in the initial striking velocity V 0 of the projectile, as illustrated in Fig. 2.1.
Qin Fang, Hao Wu
openaire   +1 more source