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Reflection of Electromagnetic Waves on Moving Interfaces for Analyzing Shock Phenomenon in Solids

Abstract : A new closed-form expression is derived in this paper for computing the electromagnetic field reflected by two moving interfaces. The interfaces velocities and refractive index between interfaces are then derived from measurable frequencies and amplitudes embedded in the reflected electromagnetic field. As an application, the remote analysis of the shock wave phenomenon in solids is reported and shock wave descriptors are estimated. Based on the proposed approach, physical insights on published measurement results are reported. Two cases are investigated: one from the literature and one from new data on shock loading of PolyMethyl MethAcrylate.
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https://hal.laas.fr/hal-01876713
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Submitted on : Tuesday, September 18, 2018 - 4:30:13 PM
Last modification on : Wednesday, April 22, 2020 - 11:04:02 AM

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Benoit Rougier, Hervé Aubert, A Lefrançois, Yohan Barbarin, J. Luc, et al.. Reflection of Electromagnetic Waves on Moving Interfaces for Analyzing Shock Phenomenon in Solids. Radio Science, 2018, 53 (7), pp.888-894. ⟨10.1029/2017RS006500⟩. ⟨hal-01876713⟩

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