hohoho:半径
切应力:τ=Gρθ\tau = G\rho \thetaτ=Gρθ
扭矩:M=∫AρτρdA=∫Aρ2GθdAM=\int_A \rho \tau_{\rho}dA = \int_A \rho^2 G \theta dAM=∫AρτρdA=∫Aρ2GθdA
惯性矩:IP=∫Aρ2dAI_P=\int_A \rho^2 dAIP=∫Aρ2dA
扭转截面系数:Wp=IprW_p=\frac{I_p}{r}Wp=rIp
yyy: 任一纵线到中性层的距离
应变、应力: σ=Eϵ=Eyρ\sigma =E\epsilon = E\frac{y}{\rho}σ=Eϵ=Eρy
应变: ϵ=MyIZ\epsilon = \frac{My}{I_Z}ϵ=IZMy
弯曲截面系数: Wz=IzymaxW_z=\frac{I_z}{y_{max}}Wz=ymaxIz
Last updated 1 day ago