Stable soft-tissue fracture simulation for surgery simulator

Masano Nakayama, Satoko Abiko, Xin Jiang, Atsushi Konno, Masaru Uchiyama

    Research output: Contribution to journalArticlepeer-review

    5 Citations (Scopus)


    Soft-tissue fracture simulation is a key to surgery simulation virtually reproducing cutting, dissection, and removal. Soft-tissue fracture is modeled by finite element fracture in which elements are removed if their stress exceeds a specified fracture stress. Removing elements without considering connection to adjacent elements may produce structurally unstable elements, that cause computational instability. We propose geometric limitation and element fracture method to avoid this instability. We confirmed the feasibility of our proposals by comparing blunt dissection simulation results to blunt dissection experiment results using agar.

    Original languageEnglish
    Pages (from-to)589-597
    Number of pages9
    JournalJournal of Robotics and Mechatronics
    Issue number4
    Publication statusPublished - 2011 Aug


    • FEM
    • Fracture
    • Soft tissue
    • Surgery simulation

    ASJC Scopus subject areas

    • Computer Science(all)
    • Electrical and Electronic Engineering


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