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

Daten und Ressourcen

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: 02:15 31 Aug 2026 (UTC)

Zusätzliche Informationen

Feld Wert
Autor Alexandros Tragoudas, Gerhard A. Holzapfel, Fadi Aldakheel
Verantwortlicher Fadi Aldakheel
Zuletzt aktualisiert August 21, 2026, 16:02 (UTC)
Erstellt April 20, 2026, 08:38 (UTC)
Lizenz Creative Commons Attribution-NonCommercial-ShareAlike 3.0
Dataset Size 75.7 MByte