Dynamic response and modeling of a carbon fiber— epoxy composite subject to shock loading

Alexander, C. Scott; Key, Christopher T.; Schumacher, Shane Christian

doi:10.1063/1.4846116

Cited by 24 publications

(2 citation statements)

References 19 publications

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“…Precursor reverberations are not a unique feature of the nanomaterial tested. The same effect was observed in plate impact experiments with different materials [ 25 , 42 , 43 , 44 , 45 ]. When a precursor arrives at a sample–window interface, it may reflect back into a sample as an unloading wave or compression wave depending on the difference between the shock impedances of a sample material in the elastic range and a window material [ 42 ].…”

Section: Discussionsupporting

confidence: 71%

Structure of Shock Wave in Nanoscale Porous Nickel at Pressures up to 7 GPa

et al. 2022

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The structure of shock waves in pressed porous samples of nickel nanoparticles was investigated in a series of uniaxial planar plate impact experiments in the pressure range of 1.6–7.1 GPa. The initial porosity of the samples was about 50%. Wave profiles were obtained using laser velocimetry techniques. The nanomaterial demonstrated a complex response to shock loading including the development of a two-wave structure associated with precursor and compaction waves. The effect on profiles and measurements of the observed precursor reverberations propagating between the front of a compaction wave and a monitored sample surface was described. The obtained wave profiles were used to estimate the thicknesses of precursor and compaction wave fronts.

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Section: Discussionsupporting

confidence: 71%

Structure of Shock Wave in Nanoscale Porous Nickel at Pressures up to 7 GPa

et al. 2022

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“…All fibers inside are then orientated into the same direction. Stacking up single layers yields multilayer composite laminates, and the orientations of the fibers in different layers usually differ from one to the other in order to provide strength and stiffness in all directions [ Alexander et al , ; Lukyanov , ].…”

Section: Introductionmentioning

confidence: 99%

Full‐wave model and numerical study of electromagnetic plane wave scattering by multilayered, fiber‐based periodic composites

Lesselier

Zhong

2015

Radio Science

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The present work aims at building up a full-wave computational model of electromagnetic nondestructive testing of composite materials produced by stacking up dielectric slabs one over the other. In each such dielectric slab, a periodic array of infinite cylindrical fibers is embedded. Electromagnetic scattering of such a multilayered, fiber-based periodic composite is investigated here for an obliquely incident plane wave, the plane of incidence of which differs from the plane orthogonal to the fibers' axes. Full-wave field representations are given first by multipole and plane wave expansions. Mode matching at boundaries between layers then yields the propagating matrices, which are applied to connect reflection and transmission coefficients of the longitudinal field components. Power reflection and transmission coefficients are obtained from time-averaged Poynting vectors. Numerical experiments with comparisons with known results illustrate the accuracy of the model proposed.

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