Application of the Extended Isogeometric Analysis (X-IGA) to Evaluate a Pipeline Structure Containing an External Crack

Table 1

Mechanical properties of the material [31].

Module d’Young	E= 207000 [MPa]
Poisson coefficient	=0.3
Yield strength	Re= 340 [MPa]
Ultimate tensile strength	Rm= 440 [MPa]
Elongation at break	A=35 %