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Table 3 Relative difference between strain energy (U) and stress intensity factor (\(K_I\)) computed with HNA Abaqus-ISET and ISET only

From: A hierarchical non-intrusive algorithm for the generalized finite element method

Element type \(\varvec{e^r(K_I)}\) \(\varvec{e^r(U)}\)
TET4 0 \(4.71E-14\)
TET10 \(1.37E-4\) \(1.17E-7\)
HEX20 \(9.34E-5\) \(1.93E-9\)
  1. The GFEM\(^\text {gl}\) is adopted in both cases