Computational Modeling of Stent Failure During Crimping and Deployment in Coronary Arteries

  • Problem: Crimping and deployment of stents involve severe finite strains, contact, strongly affecting failure and long-term performance.
  • Method:
    • 3D phase-field fracture framework for ductile failure
    • Coupled with finite-strain elastoplasticity (stent)
    • Anisotropic hyperelastic model for arterial wall (layered: intima, media, adventitia)
    • Implemented via UELs in Abaqus
  • Model capabilities:
    • Fully coupled stent–balloon–artery simulations
    • Captures crimp–hold–release–expansion sequence
    • Resolves contact, stress localization, and damage evolution
  • Key findings:
    • Fracture initiates already during crimping (not only deployment)
    • Damage progressively evolves during expansion
    • Leads to localized damage, residual stresses, and elastic recoil
  • Design insight:
    • Stent performance strongly depends on
      • geometry (open/closed-cell, strut thickness)
      • loading path
      • arterial anisotropy
  • Contribution:
    • Failure-aware computational framework under finite strains
    • Enables design optimization and safer deployment strategies
    • Open-access code for reproducibility and further research

Data and Resources

Cite this as

Alexandros Tragoudas, Gerhard A. Holzapfel, Fadi Aldakheel (2026). Computational Modeling of Stent Failure During Crimping and Deployment in Coronary Arteries [Data set]. LUIS. https://doi.org/10.25835/666phabc
Retrieved: 10:24 09 Jun 2026 (UTC)

Additional Info

Field Value
Author Alexandros Tragoudas, Gerhard A. Holzapfel, Fadi Aldakheel
Maintainer Fadi Aldakheel
Last Updated June 5, 2026, 11:24 (UTC)
Created April 20, 2026, 08:38 (UTC)
License Creative Commons Attribution-NonCommercial-ShareAlike 3.0
Dataset Size 75.7 MByte