A HEM$44$A$2120$ mm mortar $($Assuming the explosive body is a cylinder which

contains $2\mathrm{.}6$ kg TNT and $10\mathrm{.}4$ kg steel case$)$ is detonated at $2$ m from a heavily

armoured fighting vehicle $($AFV$)$ with a profile area of $9$ sqm $.$ The normal ground

condition of the detonation location is observed. Assuming $3000$ spherical

fragments are generated all from the case. The reflected pressure can be ignored.

Compare the blast damage effects, and the fragmentation damage effects $($Use the

sum value of the fragment damage to evaluate the damage$)$ on the AFV.

Please give the calculation procedure $($all necessary steps$)$ and the final answer

with very detailed explanation and conclusion.