# Experimental and Empirical Study for Prediction of Blast Loads
## 3 Results
\begin{table}
\begin{tabular}{c c c c c c c} \hline \hline \multirow{2}{*}{\begin{tabular}{c} **Semtex** \\ **100 g** \\ \end{tabular} } & \multirow{2}{*}{\begin{tabular}{c} **Scaled Distance** \\ **Z (m\(\cdot\)kg\({}^{-1/3}\))** \\ \end{tabular} } & \multirow{2}{*}{\begin{tabular}{c} **Blast** \\ **Parameters** \\ \end{tabular} } & \multirow{2}{*}{\begin{tabular}{c} **Kinery and** \\ **[PERSON]** \\ \end{tabular} } & \multirow{2}{*}{\
\begin{tabular}{c} **[PERSON] and** \\ **Major** \\ \end{tabular} } & \multirow{2}{*}{**PECH**} \\  & & & & & & **Relative Deviation (\%)** \\ \hline \multirow{6}{*}{**Distance (m)**} & \multirow{2}{*}{2} & \multirow{2}{*}{2.76} & \(P_{ti}\) **(kPa)** & 24.3 & \(-14.7\) & \(-10.7\) & \(-7.5\) \\  & & \(t_{0}\) **(ms)** & 33.3 & \(-16.7\) & - & - \\ \cline{2-7}  & \multirow{2}{*}{3} & \multirow{2}{*}{4.14} & \(P_{ti}\) **(kPa)** & 17.9 & \(-21.4\) & \(-13.7\) & \(-9.8\) \\  & & \(t_{0}\) **(ms)** & 26.7 & \(-13.3\) & - & - \\ \cline{2-7}  & \multirow{2}{*}{4} & \multirow{2}{*}{5.51} & \(P_{ti}\) **(kPa)** & 25.2 & \(-16.1\) & \(-8.4\) & \(-2.8\) \\  & & \(t_{0}\) **(ms)** & 23.5 & \(-11.8\) & - & - \\ \cline{2-7}  & \multirow{2}{*}{5} & \multirow{2}{*}{6.89} & \(P_{ti}\) **(kPa)** & 25.7 & \(-15.2\) & - & \(-1.9\) \\  & & \(t_{0}\) **(ms)** & 27.8 & \(-11.1\) & - & - \\ \hline \multirow{2}{*}{**Arithmetic mean (\%)**} & \multirow{2}{*}{
\begin{tabular}{c} **\(P_{ti}\) (kPa)** \\ **\(\mathbf{f_{0}}\) (ms)** \\ \end{tabular} } & \(P_{ti}\) **(kPa)** & 23.3 & \(-16.9\) & \(-10.9\) & \(-5.5\) \\  & & \(t_{0}\) **(ms)** & 28.4 & \(-12.9\) & - & - \\ \hline \hline \end{tabular}
\end{table} 
Table 6: Values of relative deviations from experiment for a 100 g charge. Figure 5: Pressure time course for a 200 g charge. The values calculated according to the individual predictive models for a 300 g charge are shown in Table 9. \begin{table}
\begin{tabular}{c c c c c c c c} \hline \hline \multicolumn{2}{c}{**Semtex**} & \multicolumn{2}{c}{**Scaled Distance**} & \multicolumn{2}{c}{**Blast**} & \multicolumn{2}{c}{**[PERSON] and**} & \multicolumn{2}{c}{**[PERSON] and**} & \multicolumn{2}{c}{**[PERSON] and**} \\
**200 g** & \multicolumn{2}{c}{\(Z\) (m\(\cdot\)kg\({}^{-1/3}\))**} & \multicolumn{2}{c}{**Parameters**} & \multicolumn{2}{c}{**[PERSON]**} & \multicolumn{2}{c}{**[PERSON]**} & \multicolumn{2}{c}{**Major**} & \multicolumn{1}{c}{**PECH**} \\ \hline \multirow{8}{*}{**Distance (m)**} & \multirow{2}{*}{2} & \multirow{2}{*}{2.76} & \(P_{ti}\) (kPa) & 85.5 & 60.0 & 59.2 & 62.0 \\  & & & \(t_{0}\) (ms) & 1.8 & 1.1 & - & - \\ \cline{2-7}  & \multirow{2}{*}{3} & \multirow{2}{*}{4.14} & \(P_{ti}\) (kPa) & 40.6 & 27.1 & 29.4 & 30.4 \\  & & & \(t_{0}\) (ms) & 2.2 & 1.5 & - & - \\ \cline{2-7}  & \multirow{2}{*}{4} & \multirow{2}{*}{5.51} & \(P_{ti}\) (kPa) & 25.2 & 16.8 & 18.5 & 19.4 \\  & & & \(t_{0}\) (ms) & 2.5 & 1.7 & - & - \\ \cline{2-7}  & \multirow{2}{*}{5} & \multirow{2}{*}{6.89} & \(P_{ti}\) (kPa) & 18.1 & 12.1 & 13.2 & 14.0 \\  & & & \(t_{0}\) (ms) & 2.6 & 1.9 & - & - \\ \hline \hline \end{tabular}
\end{table} 
Table 7: Values of empirical relations for a 200 g charge. Figure 6: Pressure time course for a 300 g charge.