Nonlinear elastic waves in layered bars made of different materials

17th Russian Youth Conference on Physics and Astronomy

物理学;天文学

Belashov, A.V.^1,2 ; Dreiden, G.V.^1 ; Samsonov, A.M.^1 ; Semenova, I.V.^1

Ioffe Physical Technical Institute, 26, Polytekhnicheskaya, St. Petersburg

194021, Russia^1

National Research Univ. of Information Technologies, Mechanics and Optics, Kronverkskij pr. 49, St. Petersburg

197101, Russia^2

关键词: Delaminated structure;    Glassy polymers;    Nonlinear elastic waves;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/661/1/012043/pdf
DOI  :  10.1088/1742-6596/661/1/012043

学科分类：天文学(综合)

来源: IOP

【 摘 要 】

The paper presents experimental observation of strain solitary waves in layered waveguides with layers made of two glassy polymers, PMMA and polystyrene. It is shown that in delaminated structures solitons propagate in each layer independently with parameters typical for waves in each material. In bars with layers bonded with the glassy adhesive a combined wave is formed, propagating as a single one in both layers and exhibiting soliton properties.