scholarly journals Auroral arcs: The fracture theory revisited

2020 ◽  
Author(s):  
Gerhard Haerendel
Keyword(s):  
Fracture Theory ◽  
Auroral Arcs

On the Griffith-Irwin Fracture Theory

1960 ◽  
Vol 27 (2) ◽  
pp. 352-353 ◽  
Author(s):  
J. L. Sanders
Keyword(s):  
Fracture Theory

scholarly journals Spectral observations of FUV auroral arcs and comparison with inverted-V precipitating electrons

2010 ◽  
Vol 115 (A9) ◽  
pp. n/a-n/a ◽  
Author(s):  
C. N. Lee ◽  
K. W. Min ◽  
J.-J. Lee ◽  
G. K. Parks ◽  
M. O. Fillingim ◽  
...  
Keyword(s):  
Auroral Arcs

scholarly journals Dawn Auroral Breakup at Saturn Initiated by Auroral Arcs: UVIS/Cassini Beginning of Grand Finale Phase

2017 ◽  
Vol 122 (12) ◽  
pp. 12,111-12,119 ◽  
Author(s):  
A. Radioti ◽  
D. Grodent ◽  
Z. H. Yao ◽  
J.-C. Gérard ◽  
S. V. Badman ◽  
...  
Keyword(s):  
Auroral Breakup ◽  
Auroral Arcs

scholarly journals Brittle Fracture Theory Describes the Onset of Frictional Motion

2019 ◽  
Vol 10 (1) ◽  
pp. 253-273 ◽  
Author(s):  
Ilya Svetlizky ◽  
Elsa Bayart ◽  
Jay Fineberg
Keyword(s):  
Friction Coefficient ◽  
Brittle Fracture ◽  
Static Friction ◽  
Quantitative Agreement ◽  
Interface Fracture ◽  
Earthquake Dynamics ◽  
Rupture Dynamics ◽  
Static Friction Coefficient ◽  
Fracture Theory ◽  
Macroscopic Motion

Contacting bodies subjected to sufficiently large applied shear will undergo frictional sliding. The onset of this motion is mediated by dynamically propagating fronts, akin to earthquakes, that rupture the discrete contacts that form the interface separating the bodies. Macroscopic motion commences only after these ruptures have traversed the entire interface. Comparison of measured rupture dynamics with the detailed predictions of fracture mechanics reveals that the propagation dynamics, dissipative properties, radiation, and arrest of these “laboratory earthquakes” are in excellent quantitative agreement with the predictions of the theory of brittle fracture. Thus, interface fracture replaces the idea of a characteristic static friction coefficient as a description of the onset of friction. This fracture-based description of friction additionally provides a fundamental description of earthquake dynamics and arrest.

scholarly journals Species dependent energies in upward directed ion beams over auroral arcs as observed with FAST TEAMS

1998 ◽  
Vol 25 (12) ◽  
pp. 2029-2032 ◽  
Author(s):  
E. Möbius ◽  
L. Tang ◽  
L. M. Kistler ◽  
M. Popecki ◽  
E. J. Lund ◽  
...  
Keyword(s):  
Ion Beams ◽  
Auroral Arcs
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