Numerical Analysis of the Stress Distribution and Concentration Factors of the Tool Joint of the Directional Drill Pipe

Table 1

Various cases of loading.

Load cases	Load	Value	Units
1	Tension	160000	N
2	Tension	190000	N
3	Bending	1.6	Degree
4	Bending	2.0	Degree
5	Torque	6000	N·m
6	Torque	7200	N·m