文献类型：期刊文献

英文题名：A modified phase-field model simulating multiple cracks propagation of fissured rocks under compressive or compressive-shear conditions

作者：Wang, Susheng[1,2,3];Yang, Shengqi[1,2];Zhang, Qiang[3];Shen, Wanqing[4];Zhang, Jiuchang[5];Huang, Qingfu[6]

机构：[1]Shaoxing Univ, Sch Civil Engn, Shaoxing 312000, Peoples R China;[2]China Univ Min & Technol, Sch Mech & Civil Engn, Xuzhou 221116, Peoples R China;[3]China Inst Water Resources & Hydropower Res, State Key Lab Simulat & Regulat Water Cycle River, Beijing 100048, Peoples R China;[4]Univ Lille, CNRS, Lab Multiscale & Multiphys Mech, FRE 2016,LaMcube, F-59000 Lille, France;[5]Yunnan Minzu Univ, Dept Civil Engn, Kunming 650504, Peoples R China;[6]Power China Kunming Engn Corp Ltd, Kunming 650051, Yunnan, Peoples R China

年份：2024

卷号：133

外文期刊名：THEORETICAL AND APPLIED FRACTURE MECHANICS

收录：SCI-EXPANDED(收录号：WOS:001263540800001)、、EI(收录号：20242716599146)、Scopus(收录号：2-s2.0-85197088240)、WOS

基金：This study is financially supported by the National Natural Science Foundation of China (Grant No. 52109143), China Postdoctoral Science Foundation (Grant No. 2022M713376), the Open Research Fund of State Key Laboratory of Simulation and Regulation of Water Cycle in River Basin (China Institute of Water Resources and Hydropower Research) (Grant No. IWHR-SKL-KF202305), and the China Power Construction Group research project (DJ-HXGG-2023-16).

语种：英文

外文关键词：Fissured rocks; Multiple cracks propagation; Compressive-shear failure; Strain energy decomposition; PFM

外文摘要：The Phase-Field Method (PFM) is a highly effective tool for predicting crack propagation in solid materials. In this study, we propose a modified phase-field model tailored for simulating the propagation of multiple cracks in fissured rocks. The model incorporates a novel approach by decomposing the crack driving energy into tension, tensile-shear, and compressive-shear components. Moreover, it employs a staggered algorithm scheme to solve the partial differential equations using the finite element method (FEM). The accuracy of the model is further validated through benchmark tests of uniaxial compression and pure shear, demonstrating exceptional ability to predict compressive-shear behavior in intermittent fissured rocks. Additionally, we successfully simulate various hole shapes and investigate the pressure-sensitive effect on multiple crack propagation. Overall, the proposed model extends the applicability of the phase-field approach and shows promise for use in underground rock engineering applications.