Measuring the influence of temperature on the development of elastic anisotropy with compressive plastic flow for glassy polycarbonate

A. Goel, Y. Wen, J. Hein, M. Negahban, J. A. Turner

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

The development of anisotropy as a result of isothermal plastic deformation below the glass transition temperature is investigated for different deformation temperatures. Initially, isotropic polycarbonate was subjected to different extents of plastic strain in compression and the developed anisotropic wave speeds were measured using time of travel ultrasonic techniques. Longitudinal wave speeds were measured both in the axial and transverse direction of compression for different deformation temperatures. The wave moduli clearly indicated the development of a transversely elastic response as a result of uniaxial compression.

Original languageEnglish (US)
Article number030902
JournalJournal of Engineering Materials and Technology, Transactions of the ASME
Volume133
Issue number3
DOIs
StatePublished - Jul 4 2011

Fingerprint

polycarbonate
elastic anisotropy
plastic flow
polycarbonates
Polycarbonates
Plastic flow
Anisotropy
Plastic deformation
longitudinal waves
glass transition temperature
travel
plastic deformation
plastics
ultrasonics
Temperature
anisotropy
temperature
Ultrasonics

Keywords

  • anisotropy
  • moduli
  • plastic strain
  • polycarbonate
  • temperature

ASJC Scopus subject areas

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

Cite this

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AU - Goel, A.

AU - Wen, Y.

AU - Hein, J.

AU - Negahban, M.

AU - Turner, J. A.

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N2 - The development of anisotropy as a result of isothermal plastic deformation below the glass transition temperature is investigated for different deformation temperatures. Initially, isotropic polycarbonate was subjected to different extents of plastic strain in compression and the developed anisotropic wave speeds were measured using time of travel ultrasonic techniques. Longitudinal wave speeds were measured both in the axial and transverse direction of compression for different deformation temperatures. The wave moduli clearly indicated the development of a transversely elastic response as a result of uniaxial compression.

AB - The development of anisotropy as a result of isothermal plastic deformation below the glass transition temperature is investigated for different deformation temperatures. Initially, isotropic polycarbonate was subjected to different extents of plastic strain in compression and the developed anisotropic wave speeds were measured using time of travel ultrasonic techniques. Longitudinal wave speeds were measured both in the axial and transverse direction of compression for different deformation temperatures. The wave moduli clearly indicated the development of a transversely elastic response as a result of uniaxial compression.

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KW - moduli

KW - plastic strain

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KW - temperature

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