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

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

doi:10.1115/IMECE2003-43789

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 journal › Conference article › peer-review

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 language	English (US)
Pages (from-to)	297-298
Number of pages	2
Journal	American Society of Mechanical Engineers, Bioengineering Division (Publication) BED
Volume	55
DOIs	https://doi.org/10.1115/IMECE2003-43789
State	Published - 2003
Externally published	Yes
Event	2003 ASME International Mechanical Engineering Congress - Washington, DC., United States Duration: Nov 15 2003 → Nov 21 2003

Keywords

Constitutive modeling
Dental resin composites
Epoxy
Polymers
Shrinkage stress

ASJC Scopus subject areas

General Engineering

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10.1115/IMECE2003-43789

Cite this

An elastic/viscoplastic finite element model for predicting polymerization stresses in light-activated dental composites. / Laughlin, Gayle A.; Williams, John L.; David Eick, J.
In: American Society of Mechanical Engineers, Bioengineering Division (Publication) BED, Vol. 55, 2003, p. 297-298.

Research output: Contribution to journal › Conference article › peer-review

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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.",

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AB - 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.

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KW - Polymers

KW - Shrinkage stress

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

Abstract

Keywords

ASJC Scopus subject areas

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