Abstract: A pressure vessel for containing a pressurized fluid is disclosed. An outer shell may define a cavity where the fluid is stored. An inner matrix substantially fills the cavity and undertakes a majority of the forces exerted by the stored fluid. The inner matrix is a series of interconnected nodes with a series of voids located therebetween. The voids contact one another so that fluid may flow therebetween, thus filling the cavity. The interconnected nodes are filleted at the points of contact to reduce stress concentrations. An inlet/outlet device may selectively permit the introduction and removal of the fluid from the cavity.

Abstract: A pressure vessel for containing a pressurized fluid is disclosed. An outer shell may define a cavity where the fluid is stored. An inner matrix substantially fills the cavity and undertakes a majority of the forces exerted by the stored fluid. The inner matrix is a series of interconnected nodes with a series of voids located therebetween. The voids contact one another so that fluid may flow therebetween, thus filling the cavity. The interconnected nodes are filleted at the points of contact to reduce stress concentrations. An inlet/outlet device may selectively permit the introduction and removal of the fluid from the cavity.