Stable soft-tissue fracture simulation for surgery simulator

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

Research output: Contribution to journalArticlepeer-review

7 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
Externally publishedYes


  • FEM
  • Fracture
  • Soft tissue
  • Surgery simulation

ASJC Scopus subject areas

  • Computer Science(all)
  • Electrical and Electronic Engineering


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