Passively damped structural composite materials using resistively shunted piezoceramic fibers

G. A. Lesieutre, S. Yarlagadda, S. Yoshikawa, S. K. Kurtz, Q. C. Xu

Research output: Contribution to journalArticlepeer-review

18 Scopus citations

Abstract

The development of damped structural materials is an area of current research with potential for high rewards. Resistively shunted piezoceramic fibers used as reinforcement in a structural composite mate-rial offer the potential to significantly increase vibration damping capability. Available data indicate the predictable nature of this electroelastic damping mechanism, an important concern in design. This arti-cle addresses the current status of an effort to develop damped composites using resistively shunted pie-zoceramic fibers, including modeling aspects, performance limits, design guidelines, and fabrication issues. Initial design guidelines take the form of a modified modal strain energy method. With longitudi-nally poled fibers, peak damping loss factors of 12% are attainable in principle, even at relatively low (30%) piezoceramic fiber volume fractions. Some 30-μm diameter piezoelectric fibers have been pro-duced using a solgel method, and details of poling and shunting are under investigation.

Original languageEnglish (US)
Pages (from-to)887-892
Number of pages6
JournalJournal of Materials Engineering and Performance
Volume2
Issue number6
DOIs
StatePublished - Dec 1 1993

All Science Journal Classification (ASJC) codes

  • Materials Science(all)
  • Mechanics of Materials
  • Mechanical Engineering

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