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Simulation of cracking behaviours in interlayered rocks with flaws subjected to tension using a phase‐field method
Author(s) -
Zhou Xiaoping,
Jia Zhiming,
Berto Filippo
Publication year - 2019
Publication title -
fatigue and fracture of engineering materials and structures
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.887
H-Index - 84
eISSN - 1460-2695
pISSN - 8756-758X
DOI - 10.1111/ffe.13009
Subject(s) - cracking , materials science , tension (geology) , displacement (psychology) , phase (matter) , fracture mechanics , computer simulation , displacement field , field (mathematics) , geology , composite material , geotechnical engineering , structural engineering , mechanics , finite element method , engineering , ultimate tensile strength , psychology , chemistry , physics , organic chemistry , psychotherapist , mathematics , pure mathematics
Abstract A phase‐field method (PFM) is used to investigate cracking behaviours, including crack initiation and propagation, in interlayered rocks with preexisting flaws subjected to tension. An example with a bi‐material plate with a centre flaw is used to validate the PFM. Then, numerical simulations of cracking behaviours in interlayered rocks with a single flaw and a cross‐flaw are carried out using PFM. Moreover, the load‐displacement responses are numerically investigated. The PFM numerical results show that the crack propagation trajectories and peak loads of rock specimens depend on the preexisting flaw configuration and the mechanical properties of the interlayers.