Miscellaneous Design Elements

This chapter provides stress concentration factors (SCFs) for various elements used in machine design, namely shafts with keyseats, splined shafts, gear teeth, shrink‐fitted members, bolts and nuts, lug joints, curved bars, hooks, rotating disks, and rollers. It discusses the works on SCFs of machine elements that are complex geometries and cannot be classified into certain types of machine elements due to the diversity of geometric parameters, material properties, and loading conditions. Y. J. Kim and B. G. Son discuss the impact of defect geometries on the SCFs of pipes with wall thinning. In torsion, the maximum surface stress on the semicircular keyseat end terminating at the beginning of the shoulder fillet is increased about 10% over the corresponding stress of a straight shaft with a keyseat. The chapter contains charts for various stress concentration problems.