Far field microwave NDE of composite structures using time reversal mirror

Research output: Research - peer-reviewArticle

Abstract

Microwave NDE techniques rely on the ability to propagate through Fiber Reinforced Polymer (FRP) composites and provide information about the structural integrity of composite materials. Time reversal (TR) property of the wave equation offers an effective method for interpreting the microwave NDE data. In TR, the fields back-propagate to focus at the source. TR techniques using microwave measurements have proved to be promising in radar imaging and nondestructive evaluation (NDE). This paper investigates the feasibility of using microwave TR for NDE of composite materials. Simulation studies demonstrate the feasibility and robustness of this approach to detect disbonds in metal-composite joints. An experimental system is built using a pulsed time domain setup coupled with the TR method. Experimental results demonstrate the capability of this technique for detecting single as well as multiple defects in composite materials.

LanguageEnglish (US)
Pages7-17
Number of pages11
JournalNDT and E International
Volume93
DOIs
StatePublished - Jan 1 2018

Profile

composite structures
far fields
mirrors
microwaves
evaluation
Composite structures
Mirrors
Microwaves
Composite materials
composite materials
Microwave measurement
Radar imaging
Structural integrity
Wave equations
Polymers
Metals
Defects
Fibers
imaging radar
integrity

Keywords

  • Composite materials
  • Disbonds
  • Microwave time reversal
  • Non-destructive evaluation

ASJC Scopus subject areas

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

Cite this

Far field microwave NDE of composite structures using time reversal mirror. / Mukherjee, Saptarshi; Tamburrino, Antonello; Haq, Mahmoodul; Udpa, Satish; Udpa, Lalita.

In: NDT and E International, Vol. 93, 01.01.2018, p. 7-17.

Research output: Research - peer-reviewArticle

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