5 Permanent Connections
Nomenclature
- d
- diameter of a rivet, mm
- F
- tensile or transverse load, N
- F s
- shear load, N
- k
- leg length, mm
- l
- the length of weld, mm
- M
- moment, N·mm
- m
- throat length, mm
- t
- plate thickness, mm
- w
- rivet spacing or pitch, mm
- σ
- tensile stress, normal stress, MPa
- [σ]
- allowable tensile stress, MPa
- σ p
- bearing stress, MPa
- [σ p ]
- allowable bearing stress, MPa
- τ
- shear stress, MPa
- [τ]
- allowable shear stress, MPa
- Subscripts
- 1,2…i
- plate number
- x, y, z
- coordinates
5.1 Riveting
5.1.1 Applications, Characteristics and Structure
As permanent joints, riveted joints are widely used in mechanical products like aircraft, automotive, as well as in the construction of bridges, boilers, buildings, due to simple structure, moderate strength, small assembly time and low production cost. Particularly, riveted joints are capable of joining thin components or dissimilar materials. Nevertheless, the increased weight and protruding rivet heads are the obvious disadvantages associated with riveted joints. With the rapid development of high‐strength steel bolts and the improvement of welding processes, the usage of rivets has shown a sharp decline in recent decades [1–3].
Riveted joints are a common means of fastening rolled steel plates, sheet metals and other relatively thin components to form a permanent joint. Figure 5.1 shows typical riveted joints. In Figure 5.1a, two plates are lap jointed ...