In a continuously varying environment inside the cylinder may beams bend and break. The pressure inside the column is not equally distributed, at some point in the middle is the highest and lowest on the edge, in another vice versa.
Katika mazingira ya kuendelea tofauti ndani ya silinda inaweza mihimili bend na kuvunja. shinikizo ndani safu si sawa kusambazwa, wakati fulani katika katikati ni Mkuu na Chini makali, katika kinyume mwingine makamu.