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Finite element analysis in static and dynamic behaviors of dental prosthesis
N. Djebbar,B. Serier,B. Bachir Bouiadjra 국제구조공학회 2015 Structural Engineering and Mechanics, An Int'l Jou Vol.55 No.1
In recent years, implants have gained growing importance in all areas of medicine. The success of the treatment depends on many factors affecting the bone–implant, implant–abutment and abutment–prosthesis interfaces. In this paper, static and dynamic behaviors of the dental prosthesis are investigated. Three-dimensional finite element models of dental prosthesis were constructed. Dynamic loads in 5 sec applied on occlusal surface. Therefore, FEA was selected for use in this study to examine the effect of the static and dynamic loads on the stress distribution for an implant-supported fixed partial denture and supporting bone tissue
N. Kaddouri,K. Madani,S.CH. Djebbar,M. Belhouari,R.D.S.G. Campliho 국제구조공학회 2022 Structural Engineering and Mechanics, An Int'l Jou Vol.84 No.6
Adhesive bonding has seen rapid development in recent years, with emphasis to composite patch repairing processes of geometric defects in aeronautical structures. However, its use is still limited given its low resistance to climatic conditions and requirement of specialized labor to avoid fabrication induced defects, such as air bubbles, cracks, and cavities. This work aims to numerically analyze, by the finite element method, the failure behavior of a damaged plate, in the form of a bonding defect, and repaired by an adhesively bonded composite patch. The position and size of the defect were studied. The results of the numerical analysis clearly showed that the position of the defect in the adhesive layer has a large effect on the value of J-Integral. The reduction in the value of J-Integral is also related to the composite stacking sequence which, according to the mechanical properties of the ply, provides better load transfer from the plate to the repair piece through the adhesive. In addition, the increase in the applied load significantly affects the value of the J-Integral at the crack tip in the presence of a bonding defect, even for small dimensions, by reducing the load transfer.