Official Answer
Answer
Kwishyiriraho imbaraga $ σ_i $ bibaho mugihe impeta yaguwe hejuru yumutwe cyangwa igasezerana. Irabarwa na $ σ_i = \ frac {E · t · (D_g - D_i)} {D_m ^ 2} $. Kugirango wirinde 'gushiraho burundu' (aho impeta idasubira inyuma kuri diameter yumwimerere), $ σ_i $ igomba kuba munsi yimbaraga zumusaruro $ σ_y $ wibikoresho. Ku $ 17-7PH $ CH900, $ σ_y \ hafi 200 $ ksi. Niba kubara byerekana $ σ_i> σ_y $, impeta igomba guhindurwa hifashishijwe impinduka nyinshi (igabanya umubyimba $ t $ kumurongo) cyangwa diameter nini yubusa. Mu murima, ukoresheje 'Cone yo Gushiraho' na 'Plunger' ni ngombwa kugirango impeta yagurwe kimwe kandi itarenze imipaka yabazwe.
