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Impact-induced wave patterns in a slender cylinder composed of a non-convex elastic material

  • Hui-Hui Dai*
  • , Zhenli Xu
  • *Corresponding author for this work

Research output: Chapters, Conference Papers, Creative and Literary WorksRGC 32 - Refereed conference paper (with host publication)peer-review

Abstract

This paper studies nonlinear wave propagation in a slender elastic cylinder due to impacts. One purpose is to examine what kinds of wave patterns can arise when both the material nonlinearity caused by a non-convex energy function and the dispersion caused by the lateral movement are present. A high-order weighted essentially non-oscillatory (WENO) scheme is used to obtain the numerical solutions of a model equation which takes into account the dispersion and the above-mentioned nonlinearity. It turns out that a variety of wave patterns can appear, including the co-existence of a transformation front and solitons. We also find that pre-strains and the geometrical size can have some important influences. The interactions of transformation fronts and rarefaction waves (which have not been considered in literature before) are investigated and some interesting phenomena are found.

Original languageEnglish
Title of host publicationSMART DEVICES: MODELING OF MATERIAL SYSTEMS
EditorsSM Sivakumar, Buravalla, AR Srinivasa
PublisherAmerican Institute of Physics
Pages77-+
Number of pages3
ISBN (Print)978-0-7354-0553-0
Publication statusPublished - 2008
EventInternational Workshop on Smart Devices - Modeling of Material Systems - Chennai, India
Duration: 10 Jan 200812 Jan 2008

Publication series

NameAIP Conference Proceedings
PublisherAMER INST PHYSICS
Volume1029
ISSN (Print)0094-243X

Conference

ConferenceInternational Workshop on Smart Devices - Modeling of Material Systems
PlaceIndia
CityChennai
Period10/01/0812/01/08

Funding

The Work describle in this is fully supported by a Grant from the Research Grants Council of Hong Kong SAR (project No:City U100804)and a stategic grant from City University of Hong Kong (project:7001645)

Research Keywords

  • nonlinear waves
  • solid-solid phase transition
  • WENO scheme
  • elastic cylinder
  • ESSENTIALLY NONOSCILLATORY SCHEMES
  • PHASE-TRANSFORMING MATERIALS
  • INDUCED TENSILE WAVES
  • CONSERVATION-LAWS
  • HIGH-ORDER
  • KINETIC RELATIONS
  • MIXED-TYPE
  • PROPAGATION
  • TRANSITIONS
  • MODEL

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