Answer
Mu gishushanyo mbonera cyizuba, umubare wumuraba $ N $ kumurongo ni umushoferi wibanze wimitwaro hamwe na stress. Guhangayikishwa $ \ sigma $ bibarwa nka $ \ sigma = (3 \ cdot \ pi \ cdot P \ cdot D_m) / (4 \ cdot b \ cdot t ^ 2 \ cdot N ^ 2) $. Iri gereranya ryerekana isano iri hagati yumubare wumuraba hamwe nihungabana. Mu kongera $ N $ kumutwaro uhamye $ P $, urwego rwo guhangayika rugabanuka cyane. Ariko, kwiyongera kwa $ N $ nabyo byongera igipimo cyimpeshyi $ k $. Abashushanya muri sisitemu yo kohereza amamodoka akenshi bahindura $ N $ kugirango baringanize imbaraga zisabwa kugirango barwanye umunaniro wibikoresho, mubisanzwe bagamije kurwego rwo guhangayika munsi ya 80% byimbaraga ntoya ya 17-7PH CH900 kugirango barambe mugihe cyo gukora cyane.
