陶瓷中的电-机械波——数值模拟

G. A. 莫金; B. 库利特; J. 波格特

陶瓷中的电-机械波——数值模拟

法国国家科学研究中心机械理论协会实验室, 皮埃尔-玛莉·居里大学

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出版历程
- 收稿日期: 1985-04-07
- 刊出日期: 1985-12-15

Electromechanical Waves in Ceramics——Numerical Simulation

Laboratoire de Mécanique Théorique Associé au C. N. R. S., Université Pierre-et-Marie Curie, Paris, France

摘要

摘要: 用一维模型,数值模拟了可形变陶瓷中线性和非线性波的传布.给出了试件内应力(或应变)和电场之间的响应,以及它们和电压之间的响应.并在不同荷载下,图示了电-机械波的传布特征.发现在线性区域,电压响应与实验符合很好,非线性区域,电-机械波变陡,出现所谓激波现象.

Abstract: A simple one-dimensional model is used to simulate numerically the propagation of linear and nonlinear waves in a deformable ceramic. The nummrical scheme used provides the response in stress or strain and electric field within the sample and the voltage at a resistive external circuit connecting the two faces of the sample. Space-time diagrams of the propagation are obtained for various mechanical loads. The voltage response obtained agrees well with experimental results in the linear regime. In the nonlinear one, the steepening of the electromechanical wave yielding a shock wave is exhibited.

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参考文献(18)

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