Bioinspired self-healing of advanced composite materials

Richard S. Trask, Ian P. Bond, Gareth J. Williams, Hugo R. Williams

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Citation (Scopus)

Abstract

Lightweight, high strength, high stiffness fiber reinforced polymer composite materials are leading contenders to improve the efficiency and sustainability of many forms of transport. They offer immense scope for incorporating multifunctionality due to their hierarchical internal architecture. One limiting factor in their wider exploitation is relatively poor performance under impact loading, a crucial aspect of any safety critical design, leading to a significant reduction in strength, stiffness and stability. This results in conservative design and higher mass structures. Self-healing has the potential to mitigate damage resulting from impact, thereby improving design allowables or offering other benefits such as reduced maintenance and inspection schedules. The work presented in this paper shows that either compartmentalised hollow-fiber or continuous vascular network self-healing approaches can be used for the repair of advanced composite structures. In the nearer term, the specific placement of self-healing plies or individual fibers to match a critical damage threat has been shown to repair internal matrix cracking and delaminations throughout the thickness of a laminate when assessed in both a flexural and compressive loading state. In the longer term, integration of a pervasive, circulatory vascular network within the foam core of a composite sandwich structure has also been shown to offer a marked benefit. The network has negligible influence on structural performance whilst being able to provide reattachment of the foam core and laminate skin after impact damage. In the case studied, a sizeable recovery in flexural and compression after impact strength, and restoration of primary failure mode was observed. Such systems offer significant potential for restoring structural integrity to a composite component during service and prolonging residual life after a damage event.

Original languageEnglish
Title of host publicationCollection of Technical Papers - AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics and Materials Conference
Publication statusPublished - 2008
Event49th AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics, and Materials Conference - Schaumburg, IL, USA United States
Duration: 7 Apr 200810 Apr 2008

Conference

Conference49th AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics, and Materials Conference
CountryUSA United States
CitySchaumburg, IL
Period7/04/0810/04/08

Fingerprint

Laminates
Foams
Fibers
Composite materials
Repair
Stiffness
Sandwich structures
Structural integrity
Impact strength
Composite structures
Delamination
Failure modes
Restoration
Sustainable development
Skin
Inspection
Recovery
Polymers

ASJC Scopus subject areas

  • Architecture

Cite this

Trask, R. S., Bond, I. P., Williams, G. J., & Williams, H. R. (2008). Bioinspired self-healing of advanced composite materials. In Collection of Technical Papers - AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics and Materials Conference

Bioinspired self-healing of advanced composite materials. / Trask, Richard S.; Bond, Ian P.; Williams, Gareth J.; Williams, Hugo R.

Collection of Technical Papers - AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics and Materials Conference. 2008.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Trask, RS, Bond, IP, Williams, GJ & Williams, HR 2008, Bioinspired self-healing of advanced composite materials. in Collection of Technical Papers - AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics and Materials Conference. 49th AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics, and Materials Conference, Schaumburg, IL, USA United States, 7/04/08.
Trask RS, Bond IP, Williams GJ, Williams HR. Bioinspired self-healing of advanced composite materials. In Collection of Technical Papers - AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics and Materials Conference. 2008
Trask, Richard S. ; Bond, Ian P. ; Williams, Gareth J. ; Williams, Hugo R. / Bioinspired self-healing of advanced composite materials. Collection of Technical Papers - AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics and Materials Conference. 2008.
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