弯曲杆件正应力计算公式(10)

弯曲杆件正应力计算公式

(2)校核正应力强度 )σ maxM max 4 ×106 = = = 3.88MPa < [σ ] 1 Wz × 140 × 210 2 6

正应力强度满足。 正应力强度满足3FQ max 2A

(3) 校核切应力强度τ max =3 × 4 ×103 = 0.20 MPa < [τ ] = 2 ×140 × 210

切应力强度满足。 切应力强度满足