Lub zog shear yog hais txog lub peev xwm ntawm cov khoom siv los tiv thaiv lub zog shearing, code σc, hais txog lub zog txwv thaum lub zog sab nraud yog perpendicular rau cov axis ntawm cov khoom thiab ua rau cov khoom hauv shear. Hauv square millimeters, chav tsev siab hauv cheeb tsam no hu ua lub zog shear. Kilonewton muab faib ua cheeb tsam, kN/mm2;
