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When a rod is made of different materials or has various cross-sections, it must be divided into parts that meet the necessary conditions for determining the deformation. These parts are each characterized by their internal force, cross-sectional area, length, and modulus of elasticity. These parameters are then used to compute the deformation of the entire rod.
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Related Experiment Video

Updated: Sep 29, 2025

Performing Microscope-Mounted Y-Shaped Cutting Tests
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Versatile cutting fracture evolution modeling for deformable object cutting simulation.

Sirui He1, Yinling Qian2, Xin Zhu1

  • 1College of Computer Science, Sichuan University, China; Guangdong Provincial Key Laboratory of Computer Vision and Virtual Reality Technology, Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, China.

Computer Methods and Programs in Biomedicine
|March 25, 2022
PubMed
Summary
This summary is machine-generated.

This study introduces a new energy-based model for realistic soft body cutting simulation in virtual surgery. The algorithm accurately simulates fracture and indentation with minimal computational cost.

Keywords:
Cutting fracture modelingGriffith’s energy minimizationVirtual cutting simulation

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Area of Science:

  • Computer Graphics
  • Virtual Reality
  • Surgical Simulation

Background:

  • Current virtual surgical training systems lack high realism in soft body cutting.
  • Existing methods often use a simplistic 'Intersection-IS-Fracture' model.

Purpose of the Study:

  • To develop a highly realistic virtual cutting simulation algorithm for deformable objects.
  • To incorporate fracture resistance into soft body cutting simulations.

Main Methods:

  • Utilized a co-rotational linear Finite Element Method (FEM) for large deformations.
  • Employed Composite Finite Element Method (CFEM) for accuracy and efficiency.
  • Implemented a cutting plane constrained Griffith's energy minimization scheme for fracture.
  • Developed a material-aware adaptation scheme for pre-fracture contact effects.

Main Results:

  • The algorithm generates highly realistic cutting simulations for diverse materials and geometries.
  • Indentation and fracture are consistent across different blade shapes.
  • The simulation introduces negligible computational cost.

Conclusions:

  • The proposed algorithm enhances realism in virtual surgical cutting simulations.
  • It offers versatility for various objects and cutting tools.
  • The method balances accuracy, efficiency, and visual plausibility.