\documentclass{report}
\begin{document}
\begin{table}
\centering
‎\begin{tabular}{ccrcr}
\hline 
\multicolumn{1}{c}{Direction} &
 \multicolumn{3}{c}{Angle $\phi$} & 
\multicolumn{1}{c}{Strain $\epsilon$}\\ 
\hline 
1 && 0$^\circ$ && 0.002 \\ 

2 && 120$^\circ$ && 0.002 \\ 

3 && 240$^\circ$ && -0.001 \\ 
\hline 
\end{tabular}
\end{table} ‎
\end{document}