Official Answer
Answer
Matsakaicin matsananciyar damuwa a cikin maɓuɓɓugan igiyar igiyar ruwa mai juyi guda yana samuwa a diamita na ciki ($ D_i$) a kololuwar kowane igiyar ruwa. An ƙididdige damuwar $\sigma$ a matsayin $\sigma = _x000c_rac{6 imes P imes D_m}{b imes t^2 imes N^2} imes K$, inda $P$ shine kaya kuma $K$ shine ma'anar damuwa. Wannan lissafin danniya ne mai lanƙwasawa bisa ka'idar katako inda ake kula da igiyar ruwa azaman yanki mai lanƙwasa. Don karfen carbon, ƙididdige damuwa kada ya wuce 80% na ƙaramin ƙarfi don aikace-aikacen a tsaye, ko 50% don aikace-aikacen keke. Wucewa waɗannan iyakoki yana kaiwa zuwa saiti na dindindin, inda kayan ke canzawa daga na'urar roba zuwa sassan nakasar filastik, suna canza yanayin jujjuyawar lokacin bazara.
