Recent European work on the NDT of composite materials

Reynolds, W. N.

doi:10.1016/0261-3069(88)90029-5

Cited by 1 publication

(1 citation statement)

References 34 publications

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“…Early research works [14,15] identify the potential of these variations to reflect the structural state beneath the surface such as manufacturing flaws, delaminations, or cracks. IrT methods are categorised in active and passive depending on the introduction of thermal stimulation.…”

Section: Infrared Thermographymentioning

confidence: 99%

Current injection phase thermography for low-velocity impact damage identification in composite laminates

et al. 2014

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An innovative non-destructive evaluation (NDE) technique is presented based on current stimulated thermography. Modulated electric current is injected to Carbon Fibre Reinforced Plastics (CFRP) laminates as an external source of thermal excitation. Pulsed Phase Thermography (PPT) is concurrently employed to identify low velocity impact induced (LVI) damage. The efficiency of the proposed method is demonstrated for both plain and with Carbon Nanotubes (CNTs) modified laminates, which are subjected to low-velocity impact damaged composite laminates at different energy levels. The presence of the nano reinforcing phase is important in achieving a uniform current flow along the laminate, as it improves the through thickness conductivity. The acquired thermographs are compared with optical PPT, C-scan images and Computer Tomography (CT)representations. The typical energy input for successful damage identification with current injection is three to four orders of magnitude less compared to the energy required for optical PPT.

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Section: Infrared Thermographymentioning

confidence: 99%