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DESIGN OF RIVETED JOINTS:
Types of riveted joints
Design of riveted joints
Boiler shell riveting design
Eccentric loading ...
Methods of Riveting
Material of Rivets
The material of the rivets must be tough and ductile. They
are usually made of steel (low carbon steel ...
Types of Rivet Heads
Types of Riveted Joints
1. Lap joints
a) Single lap joint
b) Double lap joint.
c) triple lap joint.
i) Chain riveting.
ii)...
Important Terms Used in Riveted Joints:
The following terms in connection with the riveted joints are important from the
s...
Caulking and Fullering
Failures
of a Riveted Joint
Failures of a Riveted Joint
1. Tearing of the plate across a row of rivets.
2. Shearing of the rivets
3. Crushing of the p...
1. Tearing of the plate across a row of rivets
2. Shearing of the rivets
When the shearing resistance (Ps) is greater than the applied load (P) per pitch length, then
this type of failure will oc...
3. Crushing of the plate or rivets
4. Tearing of the plate at an edge
A joint may fail due to tearing of the plate at an edge. This can be avoided by
keeping...
Efficiency of a Riveted Joint
Design of machine members notes part   i
Design of machine members notes part   i
Design of machine members notes part   i
Design of machine members notes part   i
Design of machine members notes part   i
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Design of machine members notes part i

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Design of Machine Members notes part - I

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Design of machine members notes part i

  1. 1. DESIGN OF RIVETED JOINTS: Types of riveted joints Design of riveted joints Boiler shell riveting design Eccentric loading design of riveted joints DESIGN OF BOLTED JOINTS: Forms of Screw threads Stresses in Screw fasteners Design of bolts with pre-stresses Design of bolted joints under eccentric loading Bolts of uniform strength
  2. 2. Methods of Riveting
  3. 3. Material of Rivets The material of the rivets must be tough and ductile. They are usually made of steel (low carbon steel or nickel steel), brass, aluminium or copper, but when strength and a fluid tight joint is the main consideration, then the steel rivets are used.
  4. 4. Types of Rivet Heads
  5. 5. Types of Riveted Joints 1. Lap joints a) Single lap joint b) Double lap joint. c) triple lap joint. i) Chain riveting. ii) Zig-zag riveting. 2. Butt joints a) Single strap butt joint b) Double strap butt joint. c) triple strap butt joint. i) Chain riveting. ii) Zig-zag riveting.
  6. 6. Important Terms Used in Riveted Joints: The following terms in connection with the riveted joints are important from the subject point of view : 1. Pitch. It is the distance from the centre of one rivet to the centre of the next rivet It is usually denoted by p. 2. Back pitch. It is the perpendicular distance between the centre lines of the successive rows. It is usually denoted by Pb. 3. Diagonal pitch. It is the distance between the centres of the rivets in adjacent rows of zig-zag riveted joint. It is usually denoted by Pd. 4. Margin or marginal pitch. It is the distance between the centre of rivet hole to the nearest edge of the plate. It is usually denoted by m.
  7. 7. Caulking and Fullering
  8. 8. Failures of a Riveted Joint
  9. 9. Failures of a Riveted Joint 1. Tearing of the plate across a row of rivets. 2. Shearing of the rivets 3. Crushing of the plate or rivets 4. Tearing of the plate at an edge
  10. 10. 1. Tearing of the plate across a row of rivets
  11. 11. 2. Shearing of the rivets
  12. 12. When the shearing resistance (Ps) is greater than the applied load (P) per pitch length, then this type of failure will occur.
  13. 13. 3. Crushing of the plate or rivets
  14. 14. 4. Tearing of the plate at an edge A joint may fail due to tearing of the plate at an edge. This can be avoided by keeping the margin, m = 1.5d where d is the diameter of the rivet hole.
  15. 15. Efficiency of a Riveted Joint

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