Non-linear finite element analysis of the failure progression of fiber-reinforced ceramics produced by tape casting technique.
The purpose of this study was to investigate the failure progression process of fiber-reinforced ceramic by finite element (FE) analysis. The three-dimensional FE model for three-point bending simulation was 40 mm long, 4 mm wide, 3 mm thick, and with a span length of 30 mm. Nodal force with load increment of 20 N was applied at the center of the upper surface of the beam. To evaluate matrix fracture and fiber fracture, von Mises criterion and Tsai-Hill criterion were used respectively. Consequently, the stress-deflection curve obtained from FE simulation agreed with that obtained from the experimental testing. Differences in flexural strength and modulus between the analytical and experimental results were 1.3 and -2.9% respectively--demonstrating a close agreement between both results. In conclusion, the FE model applied in the present study was shown to be valid for predicting the failure progression of fiber-reinforced ceramics.
Tanimoto
Yasuhiro
Y
Department of Dental Biomaterials, Research Institute of Oral Science, Nihon University School of Dentistry at Matsudo, 2-870-1, Sakaecho Nishi, Matsudo, Chiba 271-8587, Japan. tanimoto.yasuhiro@nihon-u.ac.jp
Hayakawa
Tohru
T
Nemoto
Kimiya
K
Nishiwaki
Tsuyoshi
T
D000537:Aluminum Oxide; D003735:Dental Casting Technique; D003776:Dental Porcelain; D003799:Dental Stress Analysis / Q000379:methods*; D004548:Elasticity; D019544:Equipment Failure Analysis; D020342:Finite Element Analysis; D008422:Materials Testing; D008962:Models, Theoretical; D018583:Pliability; D017655:Silicon Compounds; D014025:Titanium
D017655:Silicon Compounds; D003776:Dental Porcelain; D014025:Titanium; D000537:Aluminum Oxide