Photoelastic and finite element stress analysis of a restored axisymmetric first molar
作者： J.W. Farah , R.G. Craig , D.L. Sikarskie
DOI: 10.1016/0021-9290(73)90009-2
关键词: Elasticity (physics) 、 Shear (sheet metal) 、 Rotational symmetry 、 Radius 、 Stress (mechanics) 、 Photoelasticity 、 Finite element method 、 Materials science 、 Mechanics 、 Mandibular first molar 、 Biomedical engineering
摘要: First molars with full gold crown preparations and a shoulder geometry were idealized by an axisymmetric model and analyzed by the photoelastic, as well as the finite element method. The photoelastic model was constructed in two pieces, the restoration and the tooth with the preparation. The two pieces were then luted together and the model was loaded axisymmetrically with 100 lb; it was stress frozen, sliced, and analyzed with the help of a polariscope. The finite element model was subdivided into 348 elements. The radial and …
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