Answer
Lalacewar tsagi, ko 'bangaruwar bango,' na faruwa ne lokacin da nauyin tura $P$ ya zarce ƙarfin yawan amfanin ƙasa na kayan gidaje. A cikin abubuwa masu laushi kamar aluminum, bangon tsagi zai fara lalacewa ta hanyar filastik, ƙirƙirar bayanin martaba mai kama. Wannan 'ramping' yana ba da damar zoben karkace zuwa 'tasa' (karkatar da axially). Yayin da zoben ke yin jita-jita, yana faɗaɗa radially, a ƙarshe yana fitowa daga cikin tsagi. Wannan ba gazawar zobe ba ce, amma gazawar ƙirar tsagi na tsarin. Shirya matsala ya ƙunshi duba bangon tsagi don bayyanar 'naman kaza'. Dabarun ragewa sun haɗa da haɓaka zurfin rami, ta amfani da kayan gida mai ƙarfi, ko yin amfani da zoben karkace na 'Load-Spreading' tare da bangon radial mafi girma.