Autonomic healing of polymer composites

  title={Autonomic healing of polymer composites},
  author={Scott R. White and Nancy R. Sottos and Philippe H. Geubelle and J. S. Moore and Michael R. Kessler and Suresh R. Sriram and E. N. Brown and S. Viswanathan},
Structural polymers are susceptible to damage in the form of cracks, which form deep within the structure where detection is difficult and repair is almost impossible. Cracking leads to mechanical degradation of fibre-reinforced polymer composites; in microelectronic polymeric components it can also lead to electrical failure. Microcracking induced by thermal and mechanical fatigue is also a long-standing problem in polymer adhesives. Regardless of the application, once cracks have formed… 
Fracture and Fatigue Behavior of a Self-Healing Polymer Composite
Inspired by biological systems, in which damage triggers an autonomous healing response, a polymer composite material that can heal itself when cracked has been developed. The material consists of an
Self-healing polymers and composites based on thermal activation
Structural polymer composites are susceptible to premature failure in the form of microcracks in the matrix. Although benign initially when they form, these matrix cracks tend to coalesce and lead in
Self-healing fiber-reinforced polymer composites for their potential structural applications
  • Nazrul Islam Khan, S. Halder
  • Materials Science
  • 2020
Abstract Self-healing materials are polymers, metals, ceramics, and their composites that when damaged by an operational use has the ability to fully or partially recover its original set of
Description of Damage and Healing of a Self-Healing Anisotropic Material
Polymers and polymeric composites are used in a wide range of technical applications, e.g. for wind turbine blades. But failures, which often results from the propagation of microcracks inside the
Self-Healing Polymer Composites for Structural Application
Self-healing materials are the next-generation materials for high-performance structures. To reduce the fatigue and subsequent probability of failure along with extended service life of polymer and
A self-healing polymer composite for extended fatigue life
A novel approach is explored for improving the fatigue life of thermosetting polymers through the addition of self-healing functionality. Thermosetting polymers are used in a wide variety of
Fracture testing of a self-healing polymer composite
Inspired by biological systems in which damage triggers an autonomic healing response, a polymer composite material that can heal itself when cracked has been developed. In this paper we summarize
Self-healing structural composite materials
A self-healing fiber-reinforced structural polymer matrix composite material is demonstrated. In the composite, a microencapsulated healing agent and a solid chemical catalyst are dispersed within
Novel trends in self-healable polymer nanocomposites
  • C. I. Idumah
  • Materials Science
    Journal of Thermoplastic Composite Materials
  • 2019
Polymer composites for structural applications are prone to damage emanating from cracks which are formed within the material, where detection is not easy and repairing almost not feasible. Material
Crack healing in cross-ply composites observed by dynamic mechanical analysis
© 2014 Elsevier Ltd. All rights reserved. Cross-ply composites with healable polymer matrices are characterized using dynamic mechanical analysis (DMA). The [90,0]s samples are prepared by embedding


Procedures developed for self-repair of polymer matrix composite materials
Abstract An investigation was made into the feasibility of developing polymer matrix composites which have the ability to self-repair internal cracks due to mechanical loading. It focused on the
Ethanol‐induced crack healing in poly(methyl methacrylate)
The crack healing induced by ethanol in poly(methyl methacrylate) (PMMA) has been studied at temperatures of 40–60°C. Crack healing occurs because the effective glass transition temperature of PMMA
Interfaces in repair, recycling, joining and manufacturing of polymers and polymer composites
A basic set of 10 thermoset polymer–polymer interfaces has been identified to play a vital role in the technical and economic aspects of composite manufacturing (RIM/RTM, compression molding,
Fracture mechanics studies of crack healing and welding of polymers
Compact tension tests have been performed on re-healed and welded glassy polymers (PMMA-PMMA, SAN-SAN and PMMA-SAN). At temperatures above the glass transition temperature,Tg, it was observed that
Methanol-Induced crack healing in poly(methyl methacrylate)†
Crack healing in poly(methyl methacrylate) (PMMA) by methanol treatment at 40°C–60°C has been investigated. It is found that the methanol treatment reduces the glass transition temperature in PMMA.
Crack Healing in Glass
Cracks in soda-lime-silica glass specimens closed spontaneously; the recovery in strength was determined by fracture mechanics techniques. Approximately 80% strength was recovered in cracks formed by
A theory crack healing in polymers
A theory of crack healing in polymers is presented in terms of the stages of crack healing, namely, (a) surface rearrangement, (b) surface approach, (c) wetting, (d) diffusion, and (e) randomization.
Fatigue damage mechanisms in unidirectional carbon-fibre-reinforced plastics
The fatigue life behaviour and the underlying micromechanisms have been studied in two different Types of unidirectional carbon-fibre-reinforced plastics loaded in tension-tension along the fibre
Damage development in composites: Mechanisms and modelling
Abstract This paper presents first a review of the mechanisms of damage and its development in composite materials subjected to mechanical loads. The materials considered are thermosetting polymers
Work of Fracture and Crack Healing in Glass
The work of fracture, γwoF, of a soda-lime-silica glass was determined as 5.5 J/m2 in an inert atmosphere and 4.4 J/m2 in air by using a short bar specimen with a chevron notch. The critical stress