Elastic stress, in-plane normal stress
<img src="https://eng-calculations.com/SVG/Roark(and39)s_formulas_for_Stress_and_Strain/Stress_concentration_factors_for_elastic_stress_(TABLE_17(and46)1)/Elastic stress, in-plane normal stress.svg" alt="Elastic_stress,_in-plane_normal_stress" title="Elastic_stress,_in-plane_normal_stress">
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