Vehicle with structural vent channels for blast energy and debris dissipation

A vehicle includes one or more structural vent channels for blast energy and gas and debris dissipation. The structural enclosure of a vehicle includes a hull floor and encloses or defines a compartment for crew, cargo, or crew and cargo. The channel provides a passage through, around, or through and around the vehicle, by which blast energy and debris can be dissipated from explosions beneath the vehicle. Objects can be mounted within, above, or below the channel with breakaway mounting fixtures. The channel can serve as a storage compartment for objects that would be sacrificed during a blast.