“…The authors of [ 25 ] investigated the flexural damage of honeycomb paperboard based on FEM and experimental tests. On the other hand, the research on composite material structures within a buckling and a post-buckling state were carried out numerically in [ 26 , 27 , 28 , 29 ] and/or experimentally in [ 30 , 31 , 32 , 33 , 34 , 35 , 36 , 37 ]. Progressive failure analysis in numerical computations was considered in papers [ 38 , 39 , 40 ], among others.…”