Official Answer
Answer
Yawan amfanin ƙasa yana faruwa lokacin da damuwa mai matsa lamba akan bangon tsagi ya wuce ƙarfin amfanin kayan. Load ɗin da aka yarda da shi shine $P_a = _x000c_rac{D imes d imes S_y imes ext{Factor}}{ ext{Safety Margin}}$. Dalilin 'Factor' yana nuna gaskiyar cewa damuwa ba daidai ba ne. Idan an canza kayan gida daga Aluminum 6061-T6 ($ S_y \ kimanin 35 $ ksi) zuwa Karfe 4140 ($ S_y \ kimanin 95 $ ksi), ƙarfin ƙarfin juzu'i na geometry iri ɗaya yana ƙaruwa da kusan 300%. Dole ne injiniyoyi su yi taka tsantsan yayin 'haɓaka' nauyin tsarin ba tare da duba tsagi ba; koda zoben yana da ƙarfi sosai (ƙarfin ƙarfi), tsagi a cikin gida mai laushi zai zama maƙasudin gazawar.
