T=(0.5~0.7)*k*σs*As*d/1000
Mwa iwo,
T: mphamvu yolimbitsa, Nm
k: mphamvu yolimbitsa, nthawi zambiri 0.12
σs: mphamvu yopezera zinthu za bolt, Mpa
Monga: malo oopsa odutsa, mm2
d: M'mimba mwake mwa dzina, mm

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