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Self-Healing of Internal Damage in Synthetic Vascular Materials

Authors

  • Andrew R. Hamilton,

    1. Mechanical Science and Engineering Department, University of Illinois at Urbana-Champaign, Urbana, IL 61801 (USA)
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  • Nancy R. Sottos,

    Corresponding author
    1. Materials Science and Engineering Department, University of Illinois at Urbana-Champaign, Urbana, IL 61801 (USA)
    • Materials Science and Engineering Department, University of Illinois at Urbana-Champaign, Urbana, IL 61801 (USA).
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  • Scott R. White

    Corresponding author
    1. Aerospace Engineering Department, University of Illinois at Urbana-Champaign, Urbana, IL 61801 (USA)
    • Aerospace Engineering Department, University of Illinois at Urbana-Champaign, Urbana, IL 61801 (USA).
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Abstract

Vascular networks of microchannels (ca. 200 μm) are employed to deliver healing agents to regions of damage within an epoxy matrix material. Mechanical recovery from multiple cycles of damage is observed owing to the continuous supply of healing agents, and despite the intersection of crack damage with individual microchannels and subsequent disruption of the vascular network.

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