ERAMCA Project Reference: 609574-EPP-1-2019-1-IT-EPPKA2-CBHE-JP

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Unit 12 Beam stress DSV – Normal stress

• The normal force Nz is positive if tension; the moments Mj acting on a positive face (positive “face” is perpendicular to the positive axis direction) if along the corresponding axis (j means the axis x or y). • The normal stress σz is positive if it produces tension.