Side Impact testing ... why not ? You dont need a side impact beam to pass a side impact test right ? .. think outside of the box ...what can you do to make suicide doors safer than conventional doors ....
Structually, it is possible. Just that it will have to be compromise with thicker structural elements which means heavier doors.
Are there strong structural elements but light materials that can replace steel beams ?
There are a lot of stuff that are stronger than steel, e.g. carbon fibre reinforced plastic (CFRP), spider webs!, etc...
Though it is critical to understand that stronger is relative and dependent on direction of force... e.g. CFRP is stronger than steel in terms of tension but it cannot take compression... so it is difficult to have the best of both worlds...
