Blast energy absorption system

Blast energy absorption system capable of being integrated into the structure of a vehicle having removable, interchangeable, and configurable components adaptable to configure the vehicle for varying mission threats. The blast energy absorption system has a plurality of independent energy absorbing systems including one or more in combination of the following: a floor structure, a housing, cross beam members, adjustable energy absorbing containers, and an understructure. Each component may be an independent reactant system. The integral relationship between the above mentioned components forms a system that absorbs and distributes blast energy to minimize energy transfer to the occupants of the vehicle. Blast energy absorption system is capable of many configurations depending on the threat level of a mission.