Official Answer
Answer
Gefen gefen ($E_m$) shine nisa daga gefen tsagi zuwa ƙarshen ramin. Idan $E_m$ ya yi ƙanƙanta sosai, kayan da ke tsakanin tsagi da fuskar ɓangaren na iya yankewa ko 'busa' ƙarƙashin nauyin axial. Abin da ake buƙata $E_m$ shine kusan $3 imes d$ (zurfin tsagi sau uku). Damuwar da ke cikin wannan yanki an ƙirƙira shi azaman tsagewa: $\tau = \frac{P}{\pi imes D imes E_m}$. A cikin aikace-aikacen sararin samaniya tare da mahalli na aluminium masu nauyi, dole ne a ƙididdige gefen gefen a hankali kuma sau da yawa FEA ta tabbatar da shi don hana bala'in gazawar kafadar riƙewa a ƙarƙashin tasirin tasiri.
