Official Answer
Answer
Kunanirwa kunanirwa mumasoko yumuraba mubisanzwe bitangirira kumurambararo wimbere cyangwa hanze yikibaya cyangwa ikibaya aho guhangayika cyane. Munsi ya scanning electron microscope (SEM), umukono ugaragara nk 'striations' byerekana gukura kwiyongera kuri buri cyiciro. Kunanirwa bikunze kubaho kubera 'gushiraho' bikurikirwa no gucika. Niba isoko idakorwa kurenza urugero rwumunaniro (urugero, $ \ sigma_ {max}> 0.5 S_ {ut} $ kumyuma ya karubone), igikoma kirakwirakwira kugeza igihe igice gisigaye kidashobora gushyigikira umutwaro, biganisha kumwanya wanyuma wacitse. Kwirinda bikubiyemo kugabanya uburebure bwumuraba $ h $ cyangwa kongera umubare wumuraba $ N $ kugirango ugabanye imihangayiko kuri buri muhengeri.
