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| Naji, M. |
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| Motta, Antonella |
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| Aletan, Dirar |
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| Mohamed, Tarek |
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| Ertürk, Emre |
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| Taccardi, Nicola |
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| Kononenko, Denys |
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| Petrov, R. H. | Madrid |
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| Alshaaer, Mazen | Brussels |
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| Bih, L. |
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| Casati, R. |
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| Muller, Hermance |
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| Kočí, Jan | Prague |
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| Šuljagić, Marija |
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| Kalteremidou, Kalliopi-Artemi | Brussels |
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| Azam, Siraj |
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| Ospanova, Alyiya |
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| Blanpain, Bart |
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| Ali, M. A. |
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| Popa, V. |
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| Rančić, M. |
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| Ollier, Nadège |
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| Azevedo, Nuno Monteiro |
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| Landes, Michael |
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| Rignanese, Gian-Marco |
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Rességuier, T. De
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Topics
Publications (7/7 displayed)
- 2020Material ejection from surface defects in laser shock-loaded metallic foilscitations
- 2020Dynamic behaviour and spall fracture of laser shock-loaded AlSi10Mg alloy obtained by selective laser meltingcitations
- 2019Effects of additive manufacturing on the dynamic response of AlSi10Mg to laser shock loadingcitations
- 2018On the shock-based determination of the adhesive strength at a substrate-coating interfacecitations
- 2018Advances in indirect detector systems for ultra high-speed hard X-ray imaging with synchrotron lightcitations
- 2012Influence of elevated temperature on the wave propagation and spallation in laser shock-loaded ironcitations
- 2007Use of a macroscopic model for describing the effects of porosity on shock wave propagationcitations
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article
On the shock-based determination of the adhesive strength at a substrate-coating interface
Abstract
Evaluating the bonding strength at the interface between two layers is an issue of considerable practical interest for a wide variety of engineering applications involving coatings, such as thermal protective ceramics coated on engine blades. Spallation under laser driven shock loading is one of the experimental means to test interface debonding. However, numerical simulations are usually needed to infer a quantitative value of the bonding strength from such tests, where the coating free surface velocity is usually the only measurable variable. In this paper, the analysis of the propagation and interactions of compression and release waves leading to spall fracture in a shock-loaded material is detailed, then it is extended to a substrate-coating system. Different cases are considered, depending on the acoustic impedances of the substrate and coating materials and on the duration of the loading pressure pulse with respect to the wave transit time through the coating thickness. In each case, the interfacial strength can be analytically estimated from the velocity variations without resorting to numerical models.