A knuckle joint may be failed on the following
three modes:
1. Shear failure of the pin (single shear).
2. Crushing of pin against the rod.
3. Tensile failure of flat end bar.
The failure mechanism of knuckle joint has been studied by several investigators. Jones has reported that shear failure due to tensional loading is the normal failure mechanism in many engineering components. Pantazopoulos et.al have studied the failure of a knuckle joint of a universal coupling system. It was mentioned that torsional overload of the knuckle joint is the major cause of failure. However, in many cases, it was reported that wear of material due to severe friction leading to delimitation wear.
23 апр 2017
