Article ID Journal Published Year Pages File Type
504945 Computers in Biology and Medicine 2014 8 Pages PDF
Abstract

•We compared dynamic two-dimensional FEA and moving particle simulation (MPS).•We assumed a plane strain condition in modeling human enamel on a reduced scale.•We developed two-dimensional models with the same geometry was developed for both MPS and FEA.•We tested the models tested in tension generated with a single step of displacement.•The MPS and FEA were significantly correlated for all data sets.

BackgroundThe study of biomechanics of deformation and fracture of hard biological tissues involving organic matrix remains a challenge as variations in mechanical properties and fracture mode may have time-dependency. Finite element analysis (FEA) has been widely used but the shortcomings of FEA such as the long computation time owing to re-meshing in simulating fracture mechanics have warranted the development of alternative computational methods with higher throughput. The aim of this study was to compare dynamic two-dimensional FEA and moving particle simulation (MPS) when assuming a plane strain condition in the modeling of human enamel on a reduced scale.MethodsTwo-dimensional models with the same geometry were developed for MPS and FEA and tested in tension generated with a single step of displacement. The displacement, velocity, pressure, and stress levels were compared and Spearman׳s rank-correlation coefficients R were calculated (p<0.001).ResultsThe MPS and FEA were significantly correlated for displacement, velocity, pressure, and Y-stress.ConclusionsThe MPS may be further developed as an alternative approach without mesh generation to simulate deformation and fracture phenomena of dental and potentially other hard tissues with complex microstructure.

Related Topics
Physical Sciences and Engineering Computer Science Computer Science Applications
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