Development of Multi-Dimensional 3D Printed Vascular Networks for Self-Healing Materials

Isabel P.S. Qamar, Richard S. Trask

Research output: Chapter in Book/Report/Conference proceedingConference Contribution (Conference Proceeding)

1 Citation (Scopus)
262 Downloads (Pure)

Abstract

Self-healing materials have emerged as an alternative solution to the repair of damage in fibre-reinforced composites. Recent developments have largely focused on a vascular approach, due to the ability to transport healing agents over long distances and continually replenish from an external source. However fracture of the vascular network is required to enable the healing agents to infiltrate the crack plane, ceasing its primary function in transporting fluid and preventing the repair of any further damage events. Here we present a novel approach to vascular self-healing through the development and integration of 3D printed, porous, thermoplastic networks into a thermoset matrix. This concept exploits the inherently low surface chemistry of thermoplastic materials, which results in adhesive failure between the thermoplastic network and thermoset matrix on arrival of a propagating crack, thus exposing the radial pores of the network and allowing the healing agents to flow into the damage site. We investigate the potential of two additive manufacturing techniques, fused deposition modeling (FDM) and stereolithography, to fabricate free-standing, self-healing networks. Furthermore, we assess the interaction of a crack with branched network structures under static indentation in order to establish the feasibility of additive manufacture for multi-dimensional 3D printed self-healing networks.
Original languageEnglish
Title of host publicationASME 2017 Conference on Smart Materials, Adaptive Structures and Intelligent Systems
Subtitle of host publicationVolume 1: Development and Characterization of Multifunctional Materials; Mechanics and Behavior of Active Materials; Bioinspired Smart Materials and Systems; Energy Harvesting; Emerging Technologies
Place of PublicationSnowbird, Utah, USA
PublisherAmerican Society of Mechanical Engineers (ASME)
Number of pages7
Volume1
ISBN (Electronic)9780791858257
DOIs
Publication statusPublished - 18 Jan 2018
EventASME 2017 Conference on Smart Materials, Adaptive Structures and Intelligent Systems, SMASIS 2017 - Snowbird, United States
Duration: 18 Sep 201720 Sep 2017

Conference

ConferenceASME 2017 Conference on Smart Materials, Adaptive Structures and Intelligent Systems, SMASIS 2017
CountryUnited States
CitySnowbird
Period18/09/1720/09/17

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  • Projects

    Development of 3D Printed Vascular Networks for Repeated Self-Healing

    Qamar, I. P. S.

    3/10/113/05/17

    Project: Research

    Cite this

    Qamar, I. P. S., & Trask, R. S. (2018). Development of Multi-Dimensional 3D Printed Vascular Networks for Self-Healing Materials. In ASME 2017 Conference on Smart Materials, Adaptive Structures and Intelligent Systems: Volume 1: Development and Characterization of Multifunctional Materials; Mechanics and Behavior of Active Materials; Bioinspired Smart Materials and Systems; Energy Harvesting; Emerging Technologies (Vol. 1). [V001T08A007] American Society of Mechanical Engineers (ASME). https://doi.org/10.1115/SMASIS2017-3829