A nonlinear ultrasound method for fatigue evaluation of marine structures

Fu Cai Li, Zheng Hao Sun, Hong Guang Li, Li Min Zhou

Research output: Chapter in book / Conference proceedingConference article published in proceeding or bookAcademic researchpeer-review

Abstract

Fatigue is a major cause of failure in marine structures resulting from random wave and wind loading. A nonlinear ultrasound method for fatigue evaluation which uses interaction of two non-collinear nonlinear ultrasonic waves with quadratic nonlinearity is investigated in this paper. A hyperbolic system of conservation laws is applied here and a semi-discrete central scheme is used to solve the numerical problem. The numerical results prove that a resonant wave can be generated by two primary waves with certain resonant conditions. Features of the resonant wave are analyzed both in the time and frequency domains, and several regularities are found on intensity distribution of the resonant wave in two-dimensional domain.
Original languageEnglish
Title of host publicationAdvanced Composites for Marine Engineering
PublisherTrans Tech Publications Ltd
Pages116-123
Number of pages8
ISBN (Print)9783038354062
DOIs
Publication statusPublished - 1 Jan 2015
Event1st International Conference on Advanced Composites for Marine Engineering, ICACME 2013 - Beijing, China
Duration: 10 Sep 201312 Sep 2013

Publication series

NameMaterials Science Forum
Volume813
ISSN (Print)0255-5476

Conference

Conference1st International Conference on Advanced Composites for Marine Engineering, ICACME 2013
CountryChina
CityBeijing
Period10/09/1312/09/13

Keywords

  • Non-collinear mixing waves
  • Nonlinear ultrasound
  • Third-order elastic constants

ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering

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