2017 # Calculation of stress intensity factor along the 3D crack front by dual BIE with new crack front elements

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“…where, in the crack surface, the CODs are Δu k (Q) which is u k (Q + ) − u k (Q − ), in which u k (Q + ) and u k (Q − ) represent displacements on the two crack surfaces. Equations (8) and (9) are collocated on noncrack surfaces and crack surfaces, respectively.…”

confidence: 99%

“…where, in the crack surface, the CODs are Δu k (Q) which is u k (Q + ) − u k (Q − ), in which u k (Q + ) and u k (Q − ) represent displacements on the two crack surfaces. Equations (8) and (9) are collocated on noncrack surfaces and crack surfaces, respectively.…”

confidence: 99%

“…To achieve high computational accuracy, the integrals with singularity in the DBEM must be accurately computed [9,12,15,[19][20][21][22][23][24][25][26][27]. In this section, the singular integral is gradually computed through three steps.…”

confidence: 99%