Calculation method for brittle fracture of functional gradient materials

被引：0
作者：
Qi, Cong [1 ]
Pi, Ai-guo [1 ]
机构：
[1] Beijing Inst Technol, State Key Lab Explos Sci & Safety Protect, Beijiing 100081, Peoples R China
来源：
SCIENTIFIC REPORTS | 2024年 / 14卷 / 01期
关键词：
Brittle fracture; Functional gradient materials; Phase field; Stress intensity factor; Crack; STRESS-INTENSITY FACTORS; CRACK-PROPAGATION; FAILURE CRITERIA; GRADED MATERIALS; PHASE; SURFACE; DEPOSITION; MODEL;
D O I：
10.1038/s41598-024-80884-3
中图分类号：
O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];
学科分类号：
07 ; 0710 ; 09 ;
摘要：
Combined the phase field model with the wavelet dummy node-virtual crack closure technique (WDN-VCCT) used for stress intensity factors (SIFs) calculation. Calculated the node displacement using an improved brittle fracture phase field method, established the relationship between node displacement and node force using WDN-VCCT, and calculated the SIFs at the crack tip. The correctness and accuracy of the proposed method were verified through functional gradient material (FGM) tensile experiment. The influence of crack inclination angle, crack position and gradient index on mechanical response, and SIFs values at the crack tip was discussed. This study provides important computational tools for estimating the service life of FGMs and important references for structural optimization design methods.
引用
收藏
页数：20
相关论文
共 61 条
  • [1] A phase-field thermomechanical framework for modeling failure and crack evolution in glass panes under fire
    Abdoh, D. A.
    Yin, B. B.
    Liew, K. M.
    [J]. COMPUTER METHODS IN APPLIED MECHANICS AND ENGINEERING, 2021, 385
  • [2] Ait Ferhat Yazid, 2020, Archives of Mechanical Technology and Materials, V40, P12, DOI 10.2478/amtm-2020-0003
  • [3] Crack propagation modeling in functionally graded materials using Moving Mesh technique and interaction integral approach
    Ammendolea, Domenico
    Greco, Fabrizo
    Lonetti, Paolo
    Luciano, Raimondo
    Pascuzzo, Arturo
    [J]. COMPOSITE STRUCTURES, 2021, 269 (269)
  • [4] [Anonymous], 1992, Murakami and Rohlen, P65
  • [5] Atiyah A.A., 2013, J ENG TECHNOLOGIES, V31, P513, DOI [10.30684/etj.31.3a.9, DOI 10.30684/ETJ.31.3A.9]
  • [6] FE analysis of crack problems in functionally graded materials under thermal stress
    Berrahal, L.
    Boulenouar, A.
    Ferhat, Y. Ait
    Miloudi, A.
    Naoum, H.
    [J]. INTERNATIONAL JOURNAL OF INTERACTIVE DESIGN AND MANUFACTURING - IJIDEM, 2023, 17 (04): : 1633 - 1644
  • [7] Bouchelarm M. A., 2023, Effect of the Material Gradation on the Fracture Trajectory in ceramic/metal Functionally Graded Materials
  • [8] Mixed-mode fracture analysis of FGMs using Jk-integral: Formulation and FE implementation
    Boulenouar, Abdelkader
    Hebbar, Imene
    Bouchelarm, Mohammed A.
    [J]. THEORETICAL AND APPLIED FRACTURE MECHANICS, 2023, 125
  • [9] Numerical experiments in revisited brittle fracture
    Bourdin, B
    Francfort, GA
    Marigo, JJ
    [J]. JOURNAL OF THE MECHANICS AND PHYSICS OF SOLIDS, 2000, 48 (04) : 797 - 826
  • [10] The variational approach to fracture
    Bourdin, Blaise
    Francfort, Gilles A.
    Marigo, Jean-Jacques
    [J]. JOURNAL OF ELASTICITY, 2008, 91 (1-3) : 5 - 148
1234567