(Solved): Q4: A triple riveted double cover (equal) butt joint is schematically sketched in the Fig. Q4. The b ...

Q4: A triple riveted double cover (equal) butt joint is schematically sketched in the Fig. Q4. The butt plates are made of stainless steel while the cover plates and rivets are made of carbon steel. The rivet diameter and pitch are d mm and 3d mm, respectively. The thicknesses of butt plate and cover plate are 0.9d mm and 0.8d mm, respectively. d=18

(i) Find the tearing resistance, shearing resistance, crushing resistance and the minimum force per pitch which will fracture the joint.

(ii) Find the efficiency of the joint. Also, discuss possible modifications to get more appropriate
design for this butt joint

 

 

Q4: A triple riveted double cover (equal) butt joint is schematically sketched in the Fig. Q4. The butt plates are made of stainless steel while the cover plates and rivets are made of carbon steel. The rivet diameter and pitch are \( \mathrm{d} \mathrm{mm} \) and \( 3 \mathrm{~d} \mathrm{~mm} \), respectively. The thicknesses of butt plate and cover plate are \( 0.9 \mathrm{~d} \mathrm{~mm} \) and \( 0.8 \mathrm{dmm} \), respectively. \( \mathrm{d}=18 \) The permissible stresses for carbon steel and stainless steel are: (i) Find the tearing resistance, shearing resistance, crushing resistance and the minimum force per pitch which will fracture the joint. \( (15) \) (ii) Find the efficiency of the joint. Also, discuss possible modifications to get more appropriate design for this butt joint. All dimensions in \( \mathrm{mm} \) Figure Q4 Triple riveted double cover (equal) butt joint