2010
DOI: 10.1007/s10439-010-0047-x
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3D Micro-Crack Propagation Simulation at Enamel/Adhesive Interface Using FE Submodeling and Element Death Techniques

Abstract: This study investigates micro-crack propagation at the enamel/adhesive interface using finite element (FE) submodeling and element death techniques. A three-dimensional (3D) FE macro-model of the enamel/adhesive/ceramic subjected to shear bond testing was generated and analyzed. A 3D micro-model with interfacial bonding structure was constructed at the upper enamel/adhesive interface where the stress concentration was found from the macro-model results. The morphology of this interfacial bonding structure (i.e… Show more

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Cited by 4 publications
(4 citation statements)
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“…The definition of “element death” is not to remove elements but to make the element’s stiffness multiply 1.0E-6 (i.e., the rigidity approaches 0) and then perform subsequent analysis. The element birth does not involve actually adding specific elements to the model but constructing a complete model and hiding the birth elements and proliferating a specific element according to the actual needs in the analysis process [ 22 ].…”
Section: Discussionmentioning
confidence: 99%
See 1 more Smart Citation
“…The definition of “element death” is not to remove elements but to make the element’s stiffness multiply 1.0E-6 (i.e., the rigidity approaches 0) and then perform subsequent analysis. The element birth does not involve actually adding specific elements to the model but constructing a complete model and hiding the birth elements and proliferating a specific element according to the actual needs in the analysis process [ 22 ].…”
Section: Discussionmentioning
confidence: 99%
“…This study combined bone remodeling theory and finite element death technology to simulate bone necrosis behavior around the fixation screw from radiation treatment after surgery [ 1 , 13 , 14 , 15 , 16 , 17 , 18 , 19 , 20 , 21 ]. The accumulation of osteonecrosis in the elements around the fixation screw at different time points can be simulated using different iterative simulation times (denoted as IT_X; X was the number of iterations) [ 22 ]. Observing the bone necrosis accumulation at different time points can roughly identify the micro-crack propagation trend.…”
Section: Methodsmentioning
confidence: 99%
“…All of the materials were assumed to be homogeneous, isotropic, and linearly elastic. [15,18,19,22,23] The number of nodes and elements of the metallic bracket model was 541,195 and 344,614, and of the ceramic bracket model was 389,407 nodes and 245,659 elements.…”
Section: Obtaining the Computational Modelmentioning
confidence: 99%
“…While it is often sufficient to assume homogeneity in materials or assign average multiphase properties (as in the mixture formulation approaches) based upon empirical observations, the mechanical response of a material to an applied force can depend strongly on microstructural details that are missed when such simplifications are made. Examples include the initiation of failure at heterogeneities through crack propagation in metals and other materials (Zhang and Feng, 2011; Liu et al ., 2010; Chen et al ., 2006; Duarte et al ., 2001) and the initiation of detonation via localized heat release due to void collapse (Tran and Udaykumar, 2006a, b). In these cases, while the micro- and meso-structures are critical to the appearance of macro-scale phenomena, the geometric complexity of microstructures makes describing them (not to mention computationally modeling their response) difficult, particularly in three dimensions.…”
Section: Introductionmentioning
confidence: 99%