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Updated: Jun 6, 2026
11:28
A Coupled Experiment-finite Element Modeling Methodology for Assessing High Strain Rate Mechanical Response of Soft Biomaterials
Published on: May 18, 2015
Detailed finite element simulations of probe insertion into solid elastic material using a cohesive zone approach
Matthew Oldfield1, Daniele Dini, Ferdinando Rodriguez Y Baena
1Department of Mechanical Engineering, Imperial College, South Kensington Campus, London, SW7 2AZ, UK. m.oldfield@imperial.ac.uk
Summary
This study introduces a finite element method for modeling probe insertion into soft tissues, crucial for developing new biomimetic probes and control strategies.
Area of Science:
- Biomaterials Science
- Mechanical Engineering
- Computational Mechanics
Background:
- Developing novel biomimetic soft-tissue probes requires understanding complex mechanical interactions.
- Accurate modeling of probe insertion into elastic materials is essential for design and control.
Purpose of the Study:
- To present a detailed finite element modeling method for probe insertion into elastic materials.
- To analyze the mechanics of a novel biomimetic soft-tissue probe.
- To demonstrate the capability of the method for complex scenarios.
Main Methods:
- Utilized a cohesive zone approach with integrated cohesive elements in a finite element mesh.
- Employed Abaqus software for detailed finite element analysis.
- Simulated probe insertion under remote tensile and contact loading conditions.
Main Results:
- Successfully demonstrated cohesive zones with variable crack paths.
- Showcased substantial probe penetration along arbitrarily curved crack paths.
- Validated the finite element model for complex insertion scenarios.
Conclusions:
- The developed finite element method accurately models probe insertion mechanics in elastic materials.
- This approach is critical for understanding probe-tissue interactions.
- The findings support the ongoing development of biomimetic soft-tissue probes and their control strategies.
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