A Study of the Failure Wave Phenomenon in Glasses at Peak Stresses Exceeding the HEL

2006 ◽  
Author(s):  
G. I. Kanel
Keyword(s):  
Wave Phenomenon ◽  
Failure Wave

Fracture Model of the Failure Wave in the Shocked Brittle Materials

2012 ◽  
Vol 446-449 ◽  
pp. 3718-3721
Author(s):  
Guo Wen Yao ◽  
Zheng Jie Zhou ◽  
Xiao Wei Feng
Keyword(s):  
Stress State ◽  
Wave Phenomenon ◽  
Nonlinear Diffusion ◽  
Failure Process ◽  
Nonlinear Diffusion Equation ◽  
Failure Model ◽  
Lateral Stress ◽  
Failure Wave ◽  
Proposed Model ◽  
Dynamic Damage

A new failure model was developed to describe the failure wave formation and propagation in shocked glass. The progressive percolation of microcracks into the stressed body gives rise to the failure wave phenomenon which could be regarded as a diffusion process. The propagation of failure front is governed by a nonlinear diffusion equation. The dynamic damage constitutive relation is built up to compute the stress state in the material through the failure process. Numerical results are presented and compared to lateral stress gauge measurements in shocked glasses. It is shown that the proposed model can capture the essence of the failure wave phenomenon.

A study of the failure wave phenomenon in glasses compressed at different levels

2005 ◽  
Vol 98 (11) ◽  
pp. 113523 ◽  
Author(s):  
G. I. Kanel ◽  
S. V. Razorenov ◽  
A. S. Savinykh ◽  
A. Rajendran ◽  
Zhen Chen
Keyword(s):  
Wave Phenomenon ◽  
Failure Wave ◽  
Different Levels

Failure wave as resonance excitation of collective burst modes of defects in shocked brittle materials

2000 ◽  
Vol 10 (PR9) ◽  
pp. Pr9-811-Pr9-816 ◽  
Author(s):  
O. A. Plekhov ◽  
D. N. Eremeev ◽  
O. B. Naimark
Keyword(s):  
Brittle Materials ◽  
Resonance Excitation ◽  
Failure Wave

The Nature of Light

2017 ◽  
Author(s):  
Frank S. Levin
Keyword(s):  
Wave Phenomenon ◽  
Electromagnetic Waves ◽  
Speed Of Light ◽  
Particle Theory ◽  
Christiaan Huygens ◽  
Slit Experiment

Chapter 2 reviews answers to the question of what is light, starting with the ancient Greeks and ending in 1900 with the wave concept of Maxwell’s electrodynamics. For some ancient Greeks, light consisted of atoms emitted from surface of the object, whereas for others it was fire that either entered into or was emitted by eyes, although the latter possibility was effectively eliminated around the year 1000. Competing proposals well after then were that light is either a wave phenomenon or consists of particles, with Isaac Newton’s corpuscular (particle) theory prevailing by the end of the 1600s over the wave concept championed by Christiaan Huygens, who published the first estimate of the speed of light. In the early 1800s, Thomas Young’s two-slit experiment proved that light was a wave, a concept codified and firmly grounded through Maxwell’s theory of electromagnetic waves.

Canal Wave Oscillations from Expansion of I-84 Bridge in Boise, Idaho

2012 ◽  
Vol 2309 (1) ◽  
pp. 200-205
Author(s):  
William Rahmeyer ◽  
J. M. Clegg ◽  
S. L. Barfuss
Keyword(s):  
New York ◽  
Physical Model ◽  
Unique Solution ◽  
Wave Phenomenon ◽  
Bridge Columns ◽  
Bridge Abutments ◽  
Wave Problem ◽  
Model Study ◽  
Bridge Crossing

Recent improvements and the widening of the I-84 Bridge crossing of the New York Canal in Boise, Idaho, have increased the number of bridge columns from 28 to 60. The resulting structure has two parallel rows of columns that extend across the width of the bridge longitudinally within the canal. After the widening of the bridge and addition of the bridge columns, the canal began experiencing an oscillating wave phenomenon that originated from the bridge columns and caused erosion of upstream and downstream canal banks and bridge abutments. A physical model study was conducted to investigate the wave phenomenon and determine what modifications to the columns or canal would be necessary to prevent the wave oscillations. The physical model was successful in simulating the wave phenomenon, and four different modifications for resolving the wave problem were tested in the model. A unique solution was found that used precast nose cones attached to selected columns. The nose cones have been installed in the prototype bridge crossing, and no wave oscillations have occurred since installation. This paper discusses the study to simulate the wave phenomenon and the four modifications that were evaluated to reduce or prevent wave oscillations.

scholarly journals Accelerating medium effect as a general wave phenomenon

2012 ◽  
Vol 340 ◽  
pp. 012042 ◽  
Author(s):  
A I Frank ◽  
P Geltenbort ◽  
M Jentschel ◽  
G V Kulin ◽  
D V Kustov ◽  
...  
Keyword(s):  
Wave Phenomenon ◽  
Medium Effect ◽  
General Wave

Arterial stationary wave phenomenon in Tolosa-Hunt syndrome

Neurology ◽  
1975 ◽  
Vol 25 (8) ◽  
pp. 765-765 ◽  
Author(s):  
H. L. KETTLER ◽  
J. D. MARTIN
Keyword(s):  
Wave Phenomenon ◽  
Stationary Wave ◽  
Hunt Syndrome

A new traveling wave phenomenon of Dictyostelium in the presence of cAMP

2010 ◽  
Vol 239 (11) ◽  
pp. 879-888 ◽  
Author(s):  
Hana Ševčíková ◽  
Jitka Čejková ◽  
Lenka Krausová ◽  
Michal Přibyl ◽  
František Štěpánek ◽  
...  
Keyword(s):  
Wave Phenomenon ◽  
Traveling Wave
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