Damage mapping of GFRP via electrical resistance measurements using nanocomposite epoxy matrix systems

Viets, Christian; Kaysser, Simon T.; Schulte, Karl

doi:10.1016/j.compositesb.2013.09.049

Cited by 95 publications

(52 citation statements)

References 22 publications

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“…Riders are therefore potentially at risk of riding a bike with invisible damage and hidden flaws to the frame which could then suffer a very sudden and catastrophic failure when being ridden under stress such as descending a mountain track at high speed. This can expose riders to dangerous situations, which can result in serious injury or even death (Viets, Kaysser, & Schulte, 2014). On the other hand, other opinions suggest that if a carbon frame cracks from fatigue, it shows a small crack in the paint followed by splintering and finally it will look like crushed bamboo when it fails entirely, therefore riders will have more warning of failure than any other material.…”

Section: Faults and Defectsmentioning

confidence: 96%

Comparative analysis of failure detection methods of composites materials’ systems

Bowkett

Thanapalan

2017

Systems Science & Control Engineering

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This paper presents a review and analysis of current non-destructive failure detection methods of composite materials and a brief outline of the build of a bamboo bicycle which has been used as a development platform and test bed for the initial development of a novel and practical nondestructive failure detection solution, which has future compatibility for carbon-fibre (CF)-based bicycles. The paper begins by presenting the current market condition of composite materials and in particular, CF and CF-reinforced plastic, and then follows onto failure modes and proceeds to investigate a comprehensive range of failure detection methods. ARTICLE HISTORY

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Section: Faults and Defectsmentioning

confidence: 96%

Comparative analysis of failure detection methods of composites materials’ systems

Bowkett

Thanapalan

2017

Systems Science & Control Engineering

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“…Viets et al [43] used a unidirectional glass fiber cloth as fiber reinforcement, stacked to achieve a final laminate architecture of [0 6 ,90 2 ] S in an epoxy matrix filled with 0.7 wt% MWCNTs. The matrix itself is used as sensor material.…”

Section: Figure 3016mentioning

confidence: 99%

“…Damage of an impact with 7.65 J on a GFRP specimen, modified with 0.7 wt% MWCNTs [43]. (a) Damage mapping with the grid technique and delamination contour derived from an ultrasonic c-scan.…”

Section: Figure 3018mentioning

confidence: 99%

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New functions in polymer composites using a nanoparticle-modified matrix

Schulte

Chandrasekaran

Viets

et al. 2015

Multifunctionality of Polymer Composites

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“…Alternative routes based on nanotechnology and multi-physics fields have also been proposed by Guzman de Villoria et al [19] enabling good spatial resolution for sensing damage in composites. Viets et al [20] demonstrated damage mapping of carbon nano-particles modified GFRP via electrical resistance measurements. They dispersed MWCNT at 0.3%wt.…”

Section: Introductionmentioning

confidence: 99%

Exploiting carbon nanotube networks for damage assessment of fiber reinforced composites

Baltopoulos

Polydorides

Pambaguian

et al. 2015

Composites Part B: Engineering

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An approach for damage inspection of composite structures utilizing carbon nanotubes (CNT) networks is investigated. CNT are dispersed in an epoxy using a processing technique compatible with commonly employed composite manufacturing techniques and subsequently used as matrix for a structural glass fiber reinforced composite. The developed electrical conductivity of the composite system is verified experimentally. The electrically conductive CNT network within the GFRP is exploited through distributed electrical voltage measurements to sense and, ultimately, locate damage in the plane of the composite plate. Damage in the form of cracks or delamination interrupts the continuity of the CNT network separating and isolating regions of the conductive network. Employing electric potential fields these changes can become measurable and can provide information for inversely locating the damage. Electrical Resistance Tomography (ERT) is formulated and experimentally applied to measure changes in the potential fields and deliver electrical conductivity change maps which are used to identify and locate changes in the CNT networks. These changes are correlated to capture the damage in the composite. Different damage modes are studied to assess the capabilities of the technique. The technique shows sensitivity to very small damages; less than 0.1% of the inspected area. The solution of the inverse ERT problem delivers a conductivity change maps which offers an effective localization with nearly 10% error and an inspection area suppression of around 75%. The proposed methodology to create CNT networks enables the application of ERT for Non-Destructive Evaluation of composite materials, previously not possible due to lack of conductivity, thus offering damage sensing and location capabilities even in-situ.

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Damage mapping of GFRP via electrical resistance measurements using nanocomposite epoxy matrix systems

Cited by 95 publications

References 22 publications

Comparative analysis of failure detection methods of composites materials’ systems

Comparative analysis of failure detection methods of composites materials’ systems

New functions in polymer composites using a nanoparticle-modified matrix

Exploiting carbon nanotube networks for damage assessment of fiber reinforced composites

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