Finite Element Modeling of Slip Insert Geometric Grip Optimization for Oil Well Drill Pipes

Figure 13

Equivalent plastic strain of the slip insert (a)–(g) for different FRAs (55–85° in steps of 5°, respectively), which are corresponding to the slip inserts presented in Figure 10, where the BRA is of 30° in all models.

(a)

(b)

(c)

(d)

(e)

(f)

(g)