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On the observation of acousto-elastic hysteresis in kinking nonlinear elastic solids
Conference paper

On the observation of acousto-elastic hysteresis in kinking nonlinear elastic solids

P Finkel, A.G Zhou, S Basu, O Yeheskel and M.W Barsoum
Review of Progress in Quantitative Nondestructive Evaluation, 35, v 1096, pp 231-237
01 Jan 2008
DOI: https://doi.org/10.1063/1.3114210

Abstract

akustisches Messen elastische Verformung Hysteresisverluste Schallausbreitung Schallschwächung zerstörungsfreie Prüfung
Using bulk acoustic waves we studied the nonlinear mechanical properties and hysteresis of the acousto-elastic effect in kinking nonlinear elastic, KNE, solids. Our investigation shows that KNE solids exhibit strong strain amplitude dependent ultrasonic attenuation and hysteretic nonlinear acousto-elastic effect interrelated with hysteretic nonlinear elastic response quasi-static stress strain curve. More importantly, we showed with these experiments based on sensitive ultrasound pulse attenuation probing during sample loading, and obtained the results of this nonlinear acousto-elastic coupling tests could be vital for developing new robust and inexpensive sensing paradigm for structure health monitoring using KNE solids. The scattering of ultrasound in such materials with both elastic and nonlinear elastic response also introduces the possibility for extremely sensitive locating and assessment of a materials damage and nondestructive evaluation for NDE. Particularly appealing would be the design of a KNE-based sensor on installed on a testing structure, which can report system status by interrogating the attenuation of an ultrasonic wave propagating inside the sensing element when stressed.

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Web of Science research areas
Materials Science, Characterization & Testing
Physics, Applied
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