scholarly journals Change of Static Stress Fields from Earthquake Rupture in Heterogeneous Crustal Structure

2009 ◽  
Vol 62 (2/3) ◽  
pp. 97-107
Author(s):  
Shigeyasu TONE ◽  
Takashi MIYATAKE ◽  
Kazuhito HIKIMA ◽  
Aitaro KATO
Keyword(s):  
Crustal Structure ◽  
Static Stress ◽  
Stress Fields ◽  
Earthquake Rupture

scholarly journals Usefulness of Coulomb Static Stress Changes in Earthquake Hazard Studies: An Example from the Lake Van Area, Eastern Turkey

2021 ◽  
Vol 4 (2) ◽  
pp. 33-41
Author(s):  
Murat Utkucu ◽  
Hatice Durmuş
Keyword(s):  
Earthquake Hazard ◽  
Static Stress ◽  
Coulomb Stress ◽  
Lake Area ◽  
Earthquake Rupture ◽  
Lake Van ◽  
Coulomb Stress Changes ◽  
Calculated Stress ◽  
Stress Changes ◽  
Large Earthquakes

It has been globally documented over different tectonic environments that Coulomb static stress changes caused by a mainshock can promote or demote stresses along the neighboring faults and thus triggers or delays following seismicity. In the present study Coulomb stress changes of the earthquakes in the Lake Van area are calculated using available data and the likely source faults. The calculated stress change maps demonstrate that the large earthquakes in the Lake Area are mostly stressed by the preceding earthquakes, suggesting earthquake rupture interactions. It is further suggested that Coulomb stress maps could be used for constraining the likely locations of the future large earthquakes and in the earthquake hazard mitigation studies.

Numerical Simulation and Experimental Evidence for Surface Modification by High Current Pulsed Electron Beam

2005 ◽  
Vol 475-479 ◽  
pp. 3673-3676 ◽  
Author(s):  
Ying Qin ◽  
Chuang Dong ◽  
Xiao Gang Wang ◽  
Sheng Zhi Hao ◽  
Jian Xin Zou ◽  
...  
Keyword(s):  
Stress Wave ◽  
Surface Deformation ◽  
Thermoelastic Stress ◽  
Static Stress ◽  
Stress Fields ◽  
Strong Impact ◽  
Metallic Materials ◽  
Pulsed Electron Beam ◽  
Melted Layer ◽  
Shock Stress

The simulation of the temperature reveals an ultra high heating/cooling rates in the order of 108~109 K/s and melted layer thickness micrometers in depth. A temperature-induced dynamic thermal stress fields can then generate three principal stress, the quasi-static stress, the thermoelastic stress, and the shock stress, the latter two being stress waves. The thermoelastic stress wave has small amplitudes less than 0.1 MPa. The shock stress wave however is a typical nonlinear wave, several hundreds of MPa in amplitude, much stronger than the thermoelastic stress wave, and has a strong impact on materials structure and properties far beyond the heat-affected zone. The maximum compressive quasi-static stress in the surface layer in aluminum reaches several hundreds of MPa, which easily induces surface deformation in metallic materials.

Experimental investigation of the interaction of dynamic and static stress fields

1979 ◽  
Vol 15 (5) ◽  
pp. 434-437 ◽  
Author(s):  
V. P. Belyatskii ◽  
A. A. Ionin ◽  
A. A. Ryskunov
Keyword(s):  
Experimental Investigation ◽  
Static Stress ◽  
Stress Fields
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