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The bending stiffness () is the resistance of a member against bending deformation. It is a function of elastic modulus , the area moment of inertia of the beam cross-section about the axis of interest, length of the beam and beam boundary condition. Bending stiffness of a beam can analytically be derived from the equation of beam deflection when it is applied by a force. where is the applied force and is the deflection. According to elementary beam theory, the relationship between the applied bending moment and the resulting curvature of the beam is: where is the deflection of the beam and is the distance along the beam. Double integration of the above equation leads to computing the deflection of the beam, and in turn, the bending stiffness of the beam. Bending stiffness in beams is also known as Flexural rigidity. ==See also== * Beam theory * Bending * Applied mechanics 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「Bending stiffness」の詳細全文を読む スポンサード リンク
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