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

Table 1

Parameters and corresponding values of the two materials used in the FE model.

Parameter (for 20CrMnMo, the material of the drill pipe and slip bowl)	Value
Density	7,870 kg/m^3
Poisson’s ratio	0.254
Young’s modulus	207 GPa
Yield strength	885 MPa
Tensile strength	1,185 MPa
Parameter (for 20CrMnTi, the material of the slip)	Value
Density	7,870 kg/m^3
Poisson’s ratio	0.254
Young’s modulus	207 GPa
Yield strength	835 MPa
Tensile strength	1,080 MPa