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Pure bending : ウィキペディア英語版 | Pure bending Pure bending is a condition of stress where a bending moment is applied to a beam without the simultaneous presence of axial, shear, or torsional forces. Pure bending occurs only under a constant bending moment (M) since the shear force (V), which is equal to , has to be equal to zero. In reality, this state of pure bending does not practically exist, because such a state needs an absolutely weightless member. The state of pure bending is an approximation made to derive formulas. ==Kinematics of pure bending== #In pure bending the axial lines bend to form circumferential lines and transverse lines remain straight and become radial lines. #Axial lines that do not extend or contract form a neutral surface.〔http://emweb.unl.edu/negahban/em325/11-Bending/Bending.htm〕
抄文引用元・出典: フリー百科事典『 ウィキペディア(Wikipedia)』 ■ウィキペディアで「Pure bending」の詳細全文を読む
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