16-4. Distributed load such as support beams at both ends
16-4. Distributed load such as support beams at both ends
Symbol description and unit
Maximum deflection： (mm)
δmax =5/384 *ｗ*L
4
/（E*I)
δmax =
Maximum deflection angle： ( Every time )
Ｉ max =1/24 *ｗ*L
3
*180/(E*I*π)
Ｉ max =
Maximum stress： (Kg/mm
2
)
σmax =Mmax/Z=1/8*ｗ*L
2
/Z
σmax =
E： Young's modulus(Kg/mm
2
)
Steel:21000、 Stainless steel:19000
Aluminum:7000、 cast iron:10000
I：Moment of inertia of area (mm
4
)
Z： Moment of inertia (mm
3
)
ｗ：Load B (Kg/mm)
L： Beam length (mm)
Reference: "Machine Design Handbook for Engineers" (Revised version by Saburo Kano) Applied Structural Mechanics Beam Calculation Table, page 141, refer to beams and columns.