Healing of low-velocity impact damage in vascularised composites

Norris, Christopher J; Bond, Ian P; Trask, Richard S.

doi:10.1016/j.compositesa.2012.08.022

Cited by 60 publications

(34 citation statements)

References 38 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Norris et al have further developed this concept with the stimuli triggered delivery of a pre-mixed commercial epoxy SHA into an aerospace grade composite material, when subject to low energy impact damage, to recover compression after impact (CAI) strength. [21][22][23] As previously discussed, [9] the SHAs implemented in this study offer significant improvements over alternative well documented self-healing systems, for example those employing Grubbs' catalyst, [24] polydimethylsiloxane (PDMS)/di-n-butyltin dilaurate (DBTL) [25] and epoxy/maleimide. [26] These improvements include host matrix compatibility, catalytic activity under mild conditions, relatively low cost and toxicity, high stability, commercial availability and system tailorability.…”

Section: Introductionmentioning

confidence: 94%

Metal Triflates as Catalytic Curing Agents in Self‐Healing Fibre Reinforced Polymer Composite Materials

Coope

Wass

Trask

et al. 2013

Macro Materials & Eng

View full text Add to dashboard Cite

A self‐healing, high performance, fibre reinforced polymer (FRP) composite material is demonstrated by employing a Lewis acid‐catalysed epoxy self‐healing agent (SHA) within a laminate manufactured using existing industrial methods. Thermal cure analysis and mechanical testing is employed to characterise the self‐healed polymer. A bio‐inspired series of vascules incorporated into an FRP composite material facilitates the delivery of SHAs to exposed fractured crack planes. Healing is effected by ring‐opening polymerisation (ROP) of an epoxy resin using novel metal triflate catalysts injected after Mode I crack opening displacement. Strong adhesive compatibility with the host matrix confers full recovery of mechanical properties (>99% healing).

show abstract

Section: Introductionmentioning

confidence: 94%

Metal Triflates as Catalytic Curing Agents in Self‐Healing Fibre Reinforced Polymer Composite Materials

Coope

Wass

Trask

et al. 2013

Macro Materials & Eng

View full text Add to dashboard Cite

show abstract

“…The parameters governing the effective insertion of vasculature into fiber reinforced materials has been extensively examined by Norris et al [19][20][21][22][23] . It has been shown that vascule diameter, orientation and location within the composite are critical parameters that need careful consideration to maintain the integrity of the component.…”

Section: A Vascular T-jointsmentioning

confidence: 99%

A Novel Method for the Manipulation of Damage and In-Situ Repair of Composite T-Joints

Cullinan

Wisnom

Bond

2015

56th AIAA/ASCE/AHS/ASC Structures, Structural Dynamics, and Materials Conference

View full text Add to dashboard Cite

A novel method for the in-situ repair of sub critical damage in complex composite structures (T-joints) using embedded hollow vasculature has been demonstrated. A number of configurations of vascularized T-joints have been presented and assessed for their efficacy at infiltrating damage planes. The effect of vasculature on the mechanical performance of the component was assessed both numerically and experimentally. 2D and 3D thermo-mechanical finite element (FE) analyses were performed to determine the influence of vasculature on thermal residual stresses and joint strength under 90° tensile (pull-off) loading. Failure loads and damage mechanisms observed during the mechanical testing agreed well with the analysis. All configurations of deltoid vasculature were successful in infiltrating the damage sites with an injected liquid. Further optimization is required, however, the vascularized deltoid configuration shows considerable promise for future industrial adaptation.

show abstract

“…A large-size vessel is able to efficiently provide adequate healing agents when a large-scale crack occurs (Norris et al, 2011a(Norris et al, , 2011b(Norris et al, , 2013.…”

Section: Healing Performance Analysismentioning

confidence: 99%

“…This leaves a hollow microvascular network inside the host material. For example, to build single-line channels, straight steel wire (Norris, Bond, & Trask, 2013) or nylon fibres (Hamilton, Sottos, & White, 2012b) were placed inside the uncured host materials. After it was fully cured, the wire or the fibre has a weak bond with the host materials and can be removed manually, leaving hollow channels.…”

Section: Sacrificial Fibres/scaffoldsmentioning

confidence: 99%

Self-healing composites: A review

2015

View full text Add to dashboard Cite

Self-healing composites are composite materials capable of automatic recovery when damaged. They are inspired by biological systems such as the human skin which are naturally able to heal themselves. This paper reviews work on selfhealing composites with a focus on capsule-based and vascular healing systems. Complementing previous survey articles, the paper provides an updated overview of the various self-healing concepts proposed over the past 15 years, and a comparative analysis of healing mechanisms and fabrication techniques for building capsules and vascular networks. Based on the analysis, factors that influence healing performance are presented to reveal key barriers and potential research directions.

show abstract

Healing of low-velocity impact damage in vascularised composites

Cited by 60 publications

References 38 publications

Metal Triflates as Catalytic Curing Agents in Self‐Healing Fibre Reinforced Polymer Composite Materials

Metal Triflates as Catalytic Curing Agents in Self‐Healing Fibre Reinforced Polymer Composite Materials

A Novel Method for the Manipulation of Damage and In-Situ Repair of Composite T-Joints

Self-healing composites: A review

Contact Info

Product

Resources

About