Thank you. Yes it must meet the needs of the doubter. And that means any doubter across the range - we should attempt to meet the needs of all. And some will question heat weakening which is the #1 key feature of the collapse initiation stage. So - YES - we must at least incorporate heat weakening. How far to go is a separate question. The whole event is complex and I suggest that means take the explanation in steps. Dont assume all the details can be in one model.good summary
how extensive the model is depends on how much imagination/intelligence the doubter has. So simpler models can model heat weakened columns will collapse. But is that really questioned?
The remainder of your post contains a lot of details which fall into three broad categories:
1) Details of method which we can address in further discussion of preliminary trials of methods and materials. Shown in green for further discussion;
2) Issues which push and extend the scope of the model beyond what is needed. Shown in orange - do we need to broaden the objective or scope??.; AND
3) Some issues which are outside the scope of a model of "initiation" >> they refer to "progression". Shown in RED - NOT "initiation stage". I'll colour code some examples:
I don't think a column 2D column grid is a problem... the floors can be drilled and the candle columns place in the shallow holes on both sides of the floors.
So you will want to place some super imposed live and dead load on each floor (same). The columns should buckle from say 4 or 5 of these floor loads
I also believe that the floors need to be something that will fracture and not remain as solid plate under excessive load. Why? we want to model both heat failed columns and floors that shatter as the crash down to the floor below.
[[.....EDITED - examples only shown]]
Perhaps use 4 thin acetate sheets on each floor so that the perimeter can contain the heat????
So - put simply - we need to agree the objective AND watch out for - take care to avoid - the endemic problems of "Objective Drift" or "Project Creep". But a lot of good ideas for consideration.