An elastic/viscoplastic finite element model for predicting polymerization stresses in light-activated dental composites

Gayle A. Laughlin, John L. Williams, J. David Eick

Research output: Contribution to journalConference article

Abstract

The purpose of this paper is to apply a finite deformation, elastic/viscoplastic approach to predict curing stresses in three light-cured dental composites, using Perzyna's theory. Time-dependent constitutive parameters were obtained from mercury dilatometry, dynamic mechanical analysis and constrained shrinkage stress testing. The numerical approach was verified by using the results of an experiment on a simple aluminum tooth model of a cavity preparation that was bulk-filled with light-cured dental composite restorative materials. The numerically predicted strain patterns were similar to those seen experimentally for the three different dental composites.

Original languageEnglish (US)
Pages (from-to)297-298
Number of pages2
JournalAmerican Society of Mechanical Engineers, Bioengineering Division (Publication) BED
Volume55
DOIs
StatePublished - Jan 1 2003
Event2003 ASME International Mechanical Engineering Congress - Washington, DC., United States
Duration: Nov 15 2003Nov 21 2003

Keywords

  • Constitutive modeling
  • Dental resin composites
  • Epoxy
  • Polymers
  • Shrinkage stress

ASJC Scopus subject areas

  • Engineering(all)

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