Two identical symmetrically placed rubber pads transmit load from a rectangular
ID: 1919986 • Letter: T
Question
Two identical symmetrically placed rubber pads transmit load from a rectangular bar to a C-shaped bracket, as shown. a) Determine the average shear stress in the rubber pads on planes parallel to the top and bottom surfaces of the pads if P = 300 N
and the dimensions of the rubber pads are: b = 30 mm, w = 80 mm, and h = 25 mm. b) If the relative displacement between the rectangular bar and the C-shaped bracket,? = 2 mm due to the 300 N load,
what is the average shear strain in the rubber pad?
Two identical symmetrically placed rubber pads transmit load from a rectangular bar to a C-shaped bracket, as shown. a) Determine the average shear stress in the rubber pads on planes parallel to the top and bottom surfaces of the pads if P = 300 N and the dimensions of the rubber pads are: b = 30 mm, w = 80 mm, and h = 25 mm. b) If the relative displacement between the rectangular bar and the C-shaped bracket,? = 2 mm due to the 300 N load, what is the average shear strain in the rubber pad?Explanation / Answer
As the two rubber pads are supporting the applied force P, so per rubber block there is shear force of P/2 i.e. 150N
Shear stress = Applied force/Area on ehich shear force acts
= 150/(30*80*10^-6) (Converting area in m^2)
= 62500 N/m^2
Given relative displacement is 2mm.
Shear strain is given by = Displacement / Height of the block = 2/25 = 0.08
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