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3D-FE analysis of soft liner–acrylic interfaces under shear loading

3D-FE analysis of soft liner–acrylic interfaces under shear loading,10.1016/j.dental.2011.01.003,Dental Materials,Muhanad M. Hatamleh,Flávia Pires Rod

3D-FE analysis of soft liner–acrylic interfaces under shear loading  
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AimTo analyze the distribution of stresses at the bond interface of Molloplast-B soft-liner attached to PMMA acrylic surface of different geometries (smooth and rough) and at different load-application distances by 3D-FEA modeling of typical shear-bond test.Methodology Three-dimensional finite element analysis (3D-FE) was performed utilizing Patran and Marc softwares (MSC.Software, USA). Models of Molloplast-B disk liner (diameter: 8mm, thickness: 3mm) bonded to smooth and rough acrylic geometries were designed. A total of 8 models (4 models for each surface geometry) were used to analyze Von Mises, maximum principal and shear stresses for the nodes corresponding to the vertical diameter of the acrylic–liner interface when applying a uniform shear-loading at different distances from the interface; 0.25, 0.5, 1, and 2mm. Materials properties were assumed to be isotropic, homogeneous, linear and elastic.
Journal: Dental Materials - DENT MATER , vol. 27, no. 5, pp. 445-454, 2011
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