• A continuum damage-based computational methodology for crack growth simulation of metal films

    • Fulltext

       

        Click here to view fulltext PDF


      Permanent link:
      https://www.ias.ac.in/article/fulltext/boms/044/0200

    • Keywords

       

      Catastrophic fracture; damage; crack growth; metal films; beam lattice model.

    • Abstract

       

      To simulate the crack growth and study the catastrophic fracture mechanisms of metal films, a computational methodology is developed to simulate the failure process from damage initiation to crack growth and eventually to rupture. In the computational methodology, a procedure is developed based on beam lattice model for considering the coupling interactions among damage and crack evolution. To verify the effectiveness of the developed computational methodology, fracture process of two copper film specimens were simulated and compared with the corresponding experimental results. The results show that the developed methodology is effective, and can be used to simulate the catastrophic fracture process of metal films. From the simulation results, we can find out that the fracture of metal films with initial flaws belongs to brittle fracture, and the regular lattice model can affect the crack path prediction, and random and irregular lattice model is more suitable to simulate crack growth in the developed computational methodology.

    • Author Affiliations

       

      BIN SUN1 ZHAO-DONG XU2

      1. Jiangsu Key Laboratory of Engineering Mechanics, School of Civil Engineering, Southeast University, Nanjing 210096, People’s Republic of China
      2. School of Civil Engineering, Southeast University, Nanjing 210096, People’s Republic of China
    • Dates

       
    • Supplementary Material

       
  • Bulletin of Materials Science | News

    • Dr Shanti Swarup Bhatnagar for Science and Technology

      Posted on October 12, 2020

      Prof. Subi Jacob George — Jawaharlal Nehru Centre for Advanced Scientific Research, Jakkur, Bengaluru
      Chemical Sciences 2020

      Prof. Surajit Dhara — School of Physics, University of Hyderabad, Hyderabad
      Physical Sciences 2020

    • Editorial Note on Continuous Article Publication

      Posted on July 25, 2019

      Click here for Editorial Note on CAP Mode

© 2021-2022 Indian Academy of Sciences, Bengaluru.