Triggerable mechanisms and fragment containment arrangements for self-destructing frangible structures and sealed vessels

A method, comprising:

• receiving a trigger signal by an apparatus comprising a frangible structure;
• breaking the frangible structure by an electrically activated triggerable mechanism of the apparatus in response to the trigger signal;
• and
• allowing, by a containment structure disposed on or over at least a portion of the frangible structure, at least the portion of the frangible structure to deform or change shape in response to breaking of the frangible structure while keeping substantially all fragments of at least the portion of the broken frangible structure together;
• wherein the frangible structure comprises a glass container.

An apparatus, comprising:

• a frangible structure coupled or integral to at least a portion of the apparatus and comprising a pre-weakened region;
• and
• an electrically-activated triggerable mechanism disposed at or proximate the pre-weakened region, the triggerable mechanism configured to cause the pre-weakened region to break in response to a trigger signal;
• wherein the apparatus is configured as a floatation apparatus and the triggerable mechanism is configured to break the frangible structure in response to the trigger signal so as to cause the floatation apparatus to lose buoyancy.