In-plane strain of electro-active paper under electric fields

Jaehwan Kim, Woochul Jung, Heung Soo Kim

Research output: Contribution to journalArticlepeer-review

32 Scopus citations

Abstract

Electro-active papers (EAPap) made with cellulose have been known as a biomimetic actuator material according to their merits in terms of large bending deformation, low actuation voltage, ultra-lightweight, and biodegradability. This out-of-plane bending deformation is useful for achieving flapping wings, micro-insect robots, and smart wallpapers. On the other hand, in-plane strains, such as extension and contraction of EAPap materials are also promising for artificial muscle applications since the Young's modulus of EAPap materials is large. This paper first reports the experimental investigation of the in-plane strain of EAPap materials in the presence of electric fields. The EAPap samples preparation and the in-plane strain measurement system are explained. The test results are shown in terms of electric field, frequency and the orientation of the samples. The power consumption and the strain energy of EAPap samples are discussed. Although there are still unknown facts in EAPap materials, this in-plane strain may be useful for artificial muscle applications.

Original languageEnglish
Pages (from-to)225-231
Number of pages7
JournalSensors and Actuators A: Physical
Volume140
Issue number2
DOIs
StatePublished - 10 Nov 2007

Keywords

  • Converse effect
  • Electro-active papers (EAPap)
  • In-plane strain
  • Piezoelectricity

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