Optimal relaxation of stress concentrations in adaptive plates with holes using piezoelectric actuators

Takanori Sasaki, Hideki Sekine, Hisao Fukunaga

Research output: Contribution to journalArticle

5 Citations (Scopus)

Abstract

Piezoelectric actuators can induce various amounts of strain upon being activated. Therefore, it is possible to reduce the stress concentrations under various external load conditions by distributing piezoelectric actuators in region expected to be subjected to high stress before external load application. In this study, we treat the optimal relaxation of stress concentrations in adaptive plates with holes using piezoelectric actuators. Adaptive plate models are concerned with simple actuator/substrate systems in which the substrates are infinite isotropic plates with a circular hole, an elliptical hole or two circular holes of equal diameter, and actuators are bonded to the plate surfaces near the holes. To examine the performance of the adaptive plates, we calculate the optimal voltage that must be applied to each piezoelectric actuator to minimize the maximum stresses in the substrates under some external load conditions.

Original languageEnglish
Pages (from-to)458-465
Number of pages8
JournalNippon Kikai Gakkai Ronbunshu, A Hen/Transactions of the Japan Society of Mechanical Engineers, Part A
Volume62
Issue number594
DOIs
Publication statusPublished - 1996 Jan 1

ASJC Scopus subject areas

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

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