Answer
Daidaituwa yana da mahimmanci don rarraba kaya iri ɗaya. Idan mating saman ba su yi daidai da juna ba, wani gefen magudanar ruwa za a matsa fiye da ɗayan. Wannan yana haifar da rarrabuwar damuwa mara Uniform inda takamaiman raƙuman ruwa suka wuce ƙididdige ƙididdiga damuwa $\sigma = _x000c_rac{3 imes _x000d_ho imes P imes D_m}{2 imes n^2 imes b imes t^2}$. Raƙuman ruwa a gefen 'tsattsauran ra'ayi' na iya shiga yankin nakasar filastik ko kuma su kai iyakar gajiya da wuri. Wannan sau da yawa yana bayyana azaman 'tsattsauran ra'ayi' ko fashewa akan sashe ɗaya kawai na bazara. Don aikace-aikacen babban zagayowar, ya kamata a riƙe saman mating zuwa daidaito tsakanin $0.05$mm don tabbatar da cewa kewayon damuwa cyclic $ riangle au$ ya kasance a cikin iyakokin SN-N.
