Challenges of order reduction techniques for problems involving polymorphic uncertainty

This research was supported by the Deutsche Forschungs-Gemeinschaft (DFG); WI 1181/9-1; STE 544/59-1; OS 166/16-1; RI 1202/6-1; RE 1057/40-1; GR 3179/5-1; WA 1521/23-1; KO 4900/5-1; ES 70/8-1; EI 1050/1-1; STR 1140/6-1; LE 1841/4-1The support of this work by the Deutsche Forschungs-Gemeinschaft (DFG) through the Priority Programme SPP 1886 Polymorphic uncertainty modelling for the numerical design of structures under grants WI 1181/9-1, STE 544/59-1, OS 166/16-1, RI 1202/6-1, RE 1057/40-1, GR 3179/5-1, WA 1521/23-1, KO 4900/5-1, ES 70/8-1, EI 1050/1-1, STR 1140/6-1, and LE 1841/4-1 is gratefully acknowledged.