Adaptive coupling peridynamic least-square minimization with finite element method for fracture analysis

This study presents an adaptive coupling peridynamic least-square minimization with the finite element method (PDLSM-FEM) for fracture analysis. The presented utilizes PDLSM modeling discontinuities while maximizing FEM region computational efficiency. Within PDLSM-FEM, only elements intersecting crack path and their neighboring are defined as PD elements, whose stiffness matrices derived based on equations. remaining conventional elements. Numerical integration of interaction integral is proposed implemented to evaluate stress intensity factors (SIFs) 2-D problems. criterion maximum hoop tensile employed failure prediction. New contributions this work include minimizing application PDLSM-FEM quasi-static propagation Simulations three plane plates one 3-D block static or cracks performed. Results show improves efficiency substantially has reasonable accuracy good capability