Official Answer
Answer
A cikin daidaitattun dabarun bazara, ana tsammanin rabon $ b/t$ ya isa isa ga ka'idar katako don amfani. Lokacin da $ b/t <8$, bazarar ba ta yin ƙasa da ƙasa kamar katako mai sauƙi kuma mafi kama da faranti mai lanƙwasa. Fasali na gyara $C_f = \frac{1}{1 - \nu^2}$, inda $\nu$ shine rabon Poisson, wani lokaci ana yin amfani da Modulus of Elasticity $E_{eff} = \ frac{E}{1 - \nu^2}$ don yin lissafin takura. Don bakin karfe ($\nu \kimanin 0.3$), wannan yana ƙara taurin ka'idar da kusan 10%. Bugu da ƙari, don kunkuntar bangon radial, haɗarin 'karkacewa' ko ɓarkewar gefe-torsional yana ƙaruwa, yana buƙatar amfani da ma'aunin daidaitawa a cikin ƙididdige ƙira.
