On nonlinear wave dissipation in polymers

I. V. Semenova; G. V. Dreiden; A. M. Samsonov

doi:10.1117/12.616592

18 August 2005 On nonlinear wave dissipation in polymers

I. V. Semenova, G. V. Dreiden, A. M. Samsonov

Proceedings Volume 5880, Optical Diagnostics; 588006 (2005) https://doi.org/10.1117/12.616592
Event: Optics and Photonics 2005, 2005, San Diego, California, United States

Abstract

Different polymeric materials are widely used in various technological and manufacturing processes and products for vibration isolation due to their properties to reduce the elastic waves magnitude. However, this property of polymers to efficiently damp elastic waves is valid for linear waves only. Nonlinear waves (for example, strain solitary waves) on the contrary can propagate in polymer waveguides, having proper characteristics, for long distances with very little loss of amplitude (we proved that in numerous experiments in waveguides made of polystyrene and PMMA). The phenomenon of existence and propagation for long distances of this new type of waves in polymer materials can be of considerable importance in engineering regarding to the potential generation of such waves in elastic constructions, that was not considered before in calculations of their strength, plasticity and damage threshold. On the other hand it allows to obtain quantitative data on nonlinear wave dissipation in these materials. We report our recent experiments on soliton propagation in waveguides made of polystyrene and PMMA, long enough to cause noticeable changes of wave shape and amplitude. Basing on these data we estimate dissipation decrements for nonlinear waves in these materials.

Citation Download Citation

I. V. Semenova, G. V. Dreiden, and A. M. Samsonov "On nonlinear wave dissipation in polymers", Proc. SPIE 5880, Optical Diagnostics, 588006 (18 August 2005); https://doi.org/10.1117/12.616592

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