Adaptive tetrahedral remeshing for modified solid models

Zhu, Hua; Gao, Shiming; Li, Ming; Pan, Wanbin

doi:10.1016/j.gmod.2012.03.005

Cited by 3 publications

(2 citation statements)

References 17 publications

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“…[ 12 ] Semi-autonomic algorithm was applied along with region-growing algorithm to interpolate two-dimensional DICOM image data so as to regenerate the 3D model. [ 13 ] The anterior region of the mandible was remeshed with 0.5 mm triangle edge length[ 14 ] [ Figure 3 ]. Local smoothing, removal of overlapping triangles, and fixing of bad edges were performed to effectively work the model in FEA.…”

Section: Methodsmentioning

confidence: 99%

Comparison between all-on-four and all-on-six treatment concepts on stress distribution for full-mouth rehabilitation using three-dimensional finite element analysis: A biomechanical study

Pandey

Durrani

Kumar

et al. 2023

Journal of Indian Society of Periodontology

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Purpose: The current study intended to provide a comparison of biomechanical behaviors of two different treatment concepts for full-mouth rehabilitation with dental implants placed according to the “All-on-four” concept and “All-on-six” concept with analysis of the stress patterns of the implant support system using three-dimensional finite element analysis (FEA). Materials and Methods: The edentulous mandible was treated with two different implant designs. “All-on-Four” implant placement concept was used in Model 1 with two central axial implants and two distally tilted implants at 17° and in Model 2, “All-on-Six” concept was applied with six vertically placed implants. Individual vertical and horizontal load of 100 N and oblique load of 141 N at 45° was applied to all implants. To evaluate and compare the results in terms of maximum principal stress, we used FEA. Results: All-on-six showed smaller maximum principal stress values on the cortical bone and implants. However, maximum principal stress values obtained on trabecular bone was smaller in the All-on-four design for vertical and horizontal loading conditions. Conclusions: The All-on-six approach showed more favorable biomechanical behavior.

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Section: Methodsmentioning

confidence: 99%

Comparison between all-on-four and all-on-six treatment concepts on stress distribution for full-mouth rehabilitation using three-dimensional finite element analysis: A biomechanical study

Pandey

Durrani

Kumar

et al. 2023

Journal of Indian Society of Periodontology

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show abstract

“…Currently, advanced industrial production systematically relies on the following cycle: computer-aided design (CAD), meshing/data preparation for simulation, finite element analysis and optimization. When the product needs only partial optimization or small modifications, returning to the CAD modeling stage is not a good choice (Lou et al , 2010b, 2010a; Onodera et al , 2011; Zhu et al , 2012; Graysmith and Shaw, 1997). Especially for large companies, wherein product designers and simulators often come from different departments.…”

Section: Introductionmentioning

confidence: 99%

Direct modifications of tetrahedral meshes

Guo

Hai

Liu

2020

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Purpose During the industrial design process, a product is usually modified and analyzed repeatedly until reaching the final design. Modifying the model and regenerating a mesh for every update during this process is very time consuming. To improve efficiency, it is necessary to circumvent the computer-aided design modeling stage when possible and directly modify the meshes to save valuable time. The purpose of this paper is to develop a method for mesh modifications. Design/methodology/approach In contrast to existing studies, which focus on one or a class of modifications, this paper comprehensively studies mesh union, mesh gluing, mesh cutting and mesh partitioning. To improve the efficiency of the method, the paper presents a fast and effective surface mesh remeshing algorithm based on a ball-packing method and controls the remeshing regions with a size field. Findings Examples and results show that the proposed mesh modification method is efficient and effective. The proposed method can be also applied to meshes with different material properties, which is very different with previous work that is only suitable for the meshes with same material property. Originality/value This paper proposes an efficient and comprehensive tetrahedral mesh modification method, through which engineers can directly modify meshes instead of models and save time.

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CAD/CAE associative features for cyclic fluid control effect modeling

2015

Computer-Aided Design and Applications

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Product fit greatly depends on the human anthropometric information. Traditional anthropometric dimensions do not describe the 3D shape of the human body that is required by product designers, especially for head fitting products. With the development of CAD software and 3D scanning technology, 3D human modeling is becoming more important in design area. Based on SizeChina database, a 3D digital design and evaluation tool that allow designers to easily access Chinese head and face shape data in the Solidworks CAD environment has been developed in this study. The various sizes of 3D head templates are generated in using reference dimensions. This digital design tool can be used to visualize, evaluate and correct product fit on screen during the development process. This method allows the creation of better fitting products for the head and face.

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Adaptive tetrahedral remeshing for modified solid models

Cited by 3 publications

References 17 publications

Comparison between all-on-four and all-on-six treatment concepts on stress distribution for full-mouth rehabilitation using three-dimensional finite element analysis: A biomechanical study

Comparison between all-on-four and all-on-six treatment concepts on stress distribution for full-mouth rehabilitation using three-dimensional finite element analysis: A biomechanical study

Direct modifications of tetrahedral meshes

CAD/CAE associative features for cyclic fluid control effect modeling

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