%0 Journal Article
%T Effect of Variation of the Coefficient of Friction on the Temperature at the Level of the Fault Lips
%A Francis Olivier Djiogang
%A Fid¨¨le Koumetio
%A David Yemele
%A Guy Pascal Konga
%A Guillaume L. Ymeli
%J Open Journal of Earthquake Research
%P 45-72
%@ 2169-9631
%D 2022
%I Scientific Research Publishing
%R 10.4236/ojer.2022.113004
%X Earth¡¯s crust is an anisotropic and purely
heterogeneous medium, which is justified by existence of different discontinuities;
our study aims to show the effect of the variation of coefficient of friction
on the evolution of temperature and its impact on seismic forecasting. In this
work, we are model in 2D the variation of thermal energy and temperature
produced by friction at the level of fault lip as function of depth of the
seismic focus and at different value of time. Earthquakes are born when the
energy accumulated by friction at the level of fault is suddenly released
causing damage, sometimes noticeable on the surface of earth (macroseisms), and
sometimes not at all noticeable on t</span><span style=\"font-family:Verdana;\">he
surface of earth (microseisms), then energy which occurs before is i</span><span style=\"font-family:Verdana;\">mportant
to forecasting earthquake. Assuming that coefficient of friction is variable,
our results have enabled us to highlight the fact that, the greater the
coefficient of friction, more the temperature increases, although the
temperature profile increase over time but not linearly reflecting the presence
of different asperities and discontinuities zone; slip generated at the level
of fault occur a variation of temperature on specific points called roughness
in common agreement with the literature. A large part of energy produced by
friction is dissipated in heat causing a local increases in temperature which a
very short duration and called flash contact temperature, and that despite the
fact that the temperature evolved in time and space, it all converged towards a
perfectly distinguishable fixed point.
%K Earthquakes
%K Coefficient of Friction
%K Nucleation Phase
%K Temperature Variation
%K Energy Variation
%K Asperity Point
%U http://www.scirp.org/journal/PaperInformation.aspx?PaperID=120846