Applied Mathematics and Mechanics (English Edition) ›› 2024, Vol. 45 ›› Issue (10): 1705-1716.doi: https://doi.org/10.1007/s10483-024-3176-7

• Articles • Previous Articles     Next Articles

Mathematical framework of nonlinear elastic waves propagating in pre-stressed media

Jiangcheng CAI, Mingxi DENG*()   

  • Received:2024-05-25 Online:2024-10-03 Published:2024-09-27
  • Contact: Mingxi DENG E-mail:mxdeng@cqu.edu.cn
  • Supported by:
    the National Natural Science Foundation of China(12134002);Project supported by the National Natural Science Foundation of China (No. 12134002)

Abstract:

Acoustic nonlinearity holds potential as a method for assessing material stress. Analogous to the acoustoelastic effect, where the velocity of elastic waves is influenced by third-order elastic constants, the propagation of nonlinear acoustic waves in pre-stressed materials would be influenced by higher-order elastic constants. Despite this, there has been a notable absence of research exploring this phenomenon. Consequently, this paper aims to establish a theoretical framework for governing the propagation of nonlinear acoustic waves in pre-stressed materials. It delves into the impact of pre-stress on higher-order material parameters, and specifically examines the propagation of one-dimensional acoustic waves within the contexts of the uniaxial stress and the biaxial stress. This paper establishes a theoretical foundation for exploring the application of nonlinear ultrasonic techniques to measure pre-stress in materials.

Key words: acoustoelastic effect, nonlinear elastic wave, pre-stress medium, higher-order elastic constant

2010 MSC Number: 

APS Journals | CSTAM Journals | AMS Journals | EMS Journals | ASME Journals