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Proceedings Paper

Interfacial fracture behaviors of the porcelain-fused-to-metal restoration by moire interferometry method and finite element analysis
Author(s): Ruhua Fang; Dongmei Wang; Xiuyin Zhang
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Paper Abstract

In this paper, moire interferometry and finite element analysis (FEA) have been applied to study interface fracture behaviors of Porcelain-fused-to-metal (PFM) restoration. The fracture criterion of an interface crack between the porcelain and metal is based on the maximum stress. The influence of the thickness ratio, load value and load form on the predicted kinking angles has been proposed and discussed. It is shown that the predicted kinking angle does not varied with load value. The magnitude of crack-kinking angle is more sensitive to load from than to thickness ratio. Measured data accord well with numerical value. These results provide data for the optimized design of clinical PFM restoration and for understanding fracture mechanism of the restoration.

Paper Details

Date Published: 29 May 2002
PDF: 4 pages
Proc. SPIE 4537, Third International Conference on Experimental Mechanics, (29 May 2002); doi: 10.1117/12.468830
Show Author Affiliations
Ruhua Fang, Tongji Univ. (China)
Dongmei Wang, Shanghai Jiaotong Univ. (China)
Xiuyin Zhang, Affiliated 9th People's Hospital (China)

Published in SPIE Proceedings Vol. 4537:
Third International Conference on Experimental Mechanics
Xiaoping Wu; Yuwen Qin; Jing Fang; Jingtang Ke, Editor(s)

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