Mechanical characteristics of a thermo-responsive two-way shape change polymeric laminate

Hirohisa Tamagawa, Keiko Kikuchi, Gakuji Nagai

Research output: Contribution to journalArticlepeer-review

6 Citations (Scopus)


A thermo-responsive bimorph actuator consisting of all-polymeric components, primarily a polyvinylchloride (PVC) plate and a carbon fiber-reinforced plastic plate (CFRP), was fabricated. The strain change of the CFRP plate resulting from environmental temperature change was quite small, while that of the PVC plate was quite large. Such a large strain disparity caused the deflection of bimorph actuator. The bimorph actuator exhibited reversible deflection in accordance with the environmental temperature without hysteresis. The reversible deflection was induced even under a load. Deflection of the bimorph actuator in response to the environmental temperature was theoretically calculated and was in good agreement with the experimental result. Further theoretical analysis predicted a fairly large deflection of the bimorph actuator even under a relatively heavy load.

Original languageEnglish
Pages (from-to)356-362
Number of pages7
JournalSensors and Actuators, A: Physical
Issue number1
Publication statusPublished - 2010 Sept


  • Actuator
  • Bimorph
  • CFRP
  • PVC
  • Thermo-responsive
  • Two-way

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Instrumentation
  • Condensed Matter Physics
  • Surfaces, Coatings and Films
  • Metals and Alloys
  • Electrical and Electronic Engineering


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