the presently disclosed device provides a method and means for ensuring that containers of all types and sizes are vented or purged to atmospheric or environmental conditions upon the interior or exterior of the container reaching a critical temperature pressure , or humidity . specifically , the presently disclosed invention integrates shape memory polymer based , thermally activated fasteners into the venting systems . the result is a venting system that increases munitions safety without compromising the venting effectiveness , structural integrity , or the required bullet / fragment impact resistance requirements of the system .