Loading and Contact Stress Analysis on the Thread Teeth in Tubing and Casing Premium Threaded Connection

Figure 4

The elastic deformations of simplified thread tooth (a) deformation caused by tooth bending or shear force; (b) deformation caused by tooth root incline; (c) deformation caused by shear deformation of tooth root; (d) deformation caused by radial effect.

(a)

(b)

(c)

(d)