- #1

maitake91

- 9

- 4

- Homework Statement
- A laminated wood beam made up of three 2cm*4cm plates glued together forming a rectangular cross section that is 4cm*6cm is given. The allowable shear stress in the glued joints is 5MPa. The beam is 10cm long and simply supported at both ends.

What is the safe load that can be carried at mid-span and what is the corresponding. maximum bending stress?

- Relevant Equations
- maximum shear stress in a rectangular beam = 1.5(F/A)

I have tried to calculate the safe load with the equation of maximum shear stress, A = 4*6*10^-4, and the given shear stress 5MPa, but I couldn't seem to get the right answer which is 18kN.