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Pol Grasland-Mongrain edited Simu disp maps.tex
over 8 years ago
Commit id: fdfadb078c826545cbf6f620386f5dd3e55469f8
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diff --git a/Simu disp maps.tex b/Simu disp maps.tex
index da9f578..78015d2 100644
--- a/Simu disp maps.tex
+++ b/Simu disp maps.tex
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To calculate the propagation of the displacement along space and time, we modeled the ablation regime as a point force directed along Z direction with a depth of 40 $\mu$m during 100 $\mu$s and of constant value from -2.5 to 2.5 mm. The magnitude of the force is stored in a matrix $H_z^{abla}(y,z,t)$. Propagation as a shear wave was calculated using Green operators $G_{zz}$ \cite{aki1980quantitative}:
\begin{equation}
G_{zz} = \frac{\cos^2 \theta}{4\pi \rho c_p^2 r} \delta(t-\frac{r}{c_p}) + \frac{\sin^2 \theta}{4\pi \rho c_s^2 r} \delta(t-\frac{r}{c_s})
%\label{eq:Gzz}
%\end{equation}
%jkfui
%\begin{equation} \label{eq:Gzz}
\end{equation}
\begin{equation}
+ \frac{3\cos^2 \theta-1}{4\pi \rho r^3} \int\limits_{r/c_p}^{r/c_s}{\tau \delta(t-\tau)d\tau}
\label{eq:Gzz2}
\end{equation}