Fracture energy evaluation of a dental composite

K. Arakawa; T. Mada

Fracture energy evaluation of a dental composite

K. Arakawa, T. Mada

Renewable Energy Center

Research output: Contribution to conference › Paper › peer-review

Abstract

Single-edge-cracked specimens for tensile testing were fabricated by packing dental composite between two rectangular plates of polymethyl methacrylate (PMMA). To study the dynamic effect of brittle fracture and the nonelastic effect of the material, the specimens were pin-loaded with a special jig so that they could split and fly apart in the loading direction after fracture. The flying height and residual deformation of the split specimen were measured to estimate the elastic energy E_e and nonelastic energy E_n, respectively. The fracture energy E_f required to create a new fracture surface was obtained by subtracting E_e and E_n from the external work U_ex applied to the specimen. The energy release rate G_f was also estimated using E_f.

Original language	English
Publication status	Published - Dec 1 2011
Event	18th International Conference on Composites Materials, ICCM 2011 - Jeju, Korea, Republic of Duration: Aug 21 2011 → Aug 26 2011

Other

Other	18th International Conference on Composites Materials, ICCM 2011
Country	Korea, Republic of
City	Jeju
Period	8/21/11 → 8/26/11

All Science Journal Classification (ASJC) codes

Engineering(all)
Ceramics and Composites

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title = "Fracture energy evaluation of a dental composite",

abstract = "Single-edge-cracked specimens for tensile testing were fabricated by packing dental composite between two rectangular plates of polymethyl methacrylate (PMMA). To study the dynamic effect of brittle fracture and the nonelastic effect of the material, the specimens were pin-loaded with a special jig so that they could split and fly apart in the loading direction after fracture. The flying height and residual deformation of the split specimen were measured to estimate the elastic energy Ee and nonelastic energy En, respectively. The fracture energy Ef required to create a new fracture surface was obtained by subtracting Ee and En from the external work Uex applied to the specimen. The energy release rate Gf was also estimated using Ef.",

author = "K. Arakawa and T. Mada",

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language = "English",

note = "18th International Conference on Composites Materials, ICCM 2011 ; Conference date: 21-08-2011 Through 26-08-2011",

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T1 - Fracture energy evaluation of a dental composite

AU - Arakawa, K.

AU - Mada, T.

PY - 2011/12/1

Y1 - 2011/12/1

N2 - Single-edge-cracked specimens for tensile testing were fabricated by packing dental composite between two rectangular plates of polymethyl methacrylate (PMMA). To study the dynamic effect of brittle fracture and the nonelastic effect of the material, the specimens were pin-loaded with a special jig so that they could split and fly apart in the loading direction after fracture. The flying height and residual deformation of the split specimen were measured to estimate the elastic energy Ee and nonelastic energy En, respectively. The fracture energy Ef required to create a new fracture surface was obtained by subtracting Ee and En from the external work Uex applied to the specimen. The energy release rate Gf was also estimated using Ef.

AB - Single-edge-cracked specimens for tensile testing were fabricated by packing dental composite between two rectangular plates of polymethyl methacrylate (PMMA). To study the dynamic effect of brittle fracture and the nonelastic effect of the material, the specimens were pin-loaded with a special jig so that they could split and fly apart in the loading direction after fracture. The flying height and residual deformation of the split specimen were measured to estimate the elastic energy Ee and nonelastic energy En, respectively. The fracture energy Ef required to create a new fracture surface was obtained by subtracting Ee and En from the external work Uex applied to the specimen. The energy release rate Gf was also estimated using Ef.

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M3 - Paper

T2 - 18th International Conference on Composites Materials, ICCM 2011

Y2 - 21 August 2011 through 26 August 2011

ER -

Fracture energy evaluation of a dental composite

Abstract

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All Science Journal Classification (ASJC) codes

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