Adaptation of CAD model topology for finite element analysis

Foucault, Gilles; Cuillière, Jean-Christophe; Vincent, François; Léon, Jean-Claude; Maranzana, Roland

doi:10.1016/j.cad.2007.10.009

Cited by 81 publications

(52 citation statements)

References 13 publications

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“…Existing methods for the simplification of 3D CAD model can be classified as follows: polygon-based, [2][3][4] boundary-representation (B-rep)-based, [5][6][7] and featurebased methods 1,[8][9][10] depending on the representation method of the 3D CAD model.…”

Section: D Cad Model Simplificationmentioning

confidence: 99%

“…Therefore, it is important to simplify a 3D CAD model in order to meet the required LOD of the 3D CAD for its purpose. 1 Due to this reason, many studies [1][2][3][4][5][6][7][8][9][10] have been conducted for the simplification of 3D CAD models in various fields. The main techniques for the simplification of a 3D CAD model are evaluation metrics and simplification operations.…”

Section: Introductionmentioning

confidence: 99%

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Determination of appropriate level of detail of a three-dimensional computer-aided design model from a permissible dissimilarity for fully automated simplification

Kwon

Kim

Mun

et al. 2017

Advances in Mechanical Engineering

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The level of detail required for a three-dimensional computer-aided design model varies according to its purpose. Thus, it is necessary to develop an automated method for controlling the level of detail of three-dimensional computer-aided design models to facilitate the use of three-dimensional computer-aided design models in different application areas. When multiple three-dimensional computer-aided design models need to be simplified in a batch mode without user intervention, it would be advantageous if the appropriate level of details for the models were automatically determined. This study proposes a new and automated method to determine the appropriate level of detail of each threedimensional computer-aided design model during the simplification phase. To achieve this goal, the concept of an ''appropriate level of detail for simplification'' was defined from the viewpoint of shape dissimilarity. After that, an algorithm was developed to determine the appropriate level of detail of a model by adopting the feature-based simplification method and the shape distribution-based comparison method. Finally, a prototype system was invented to verify the proposed method through experiments, in which the appropriate level of details for test cases were determined by the system.

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Section: D Cad Model Simplificationmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Determination of appropriate level of detail of a three-dimensional computer-aided design model from a permissible dissimilarity for fully automated simplification

Kwon

Kim

Mun

et al. 2017

Advances in Mechanical Engineering

View full text Add to dashboard Cite

show abstract

“…Focault et al reported a topology simplification technique for finite element mesh generation [Foca08]. The model for FEA should be prepared in such a way that the mesh generated for it represents the model as closely as possible and at the same time minimizes the computation time for analysis.…”

Section: Size Based Entity Decimationmentioning

confidence: 99%

A survey of CAD model simplification techniques for physics-based simulation applications

Thakur

Banerjee

Gupta

2009

Computer-Aided Design

160

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Automated CAD model simplification plays an important role in effectively utilizing physicsbased simulation during the product realization process. Currently a rich body of literature exists that describe many successful techniques for fully-automatic or semi-automatic simplification of CAD models for a wide variety of applications. The purpose of this paper is to compile a list of the techniques that are relevant for physics-based simulations problems and to characterize them based on their attributes. We have classified them into the following four categories: techniques based on surface entity based operators, volume entity based operators, explicit feature based operators, and dimension reduction operators. This paper also presents the necessary background information in the CAD model representation to assist the new readers. We conclude the paper by outlining open research directions in this field.

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“…Hamri O. proposed an approach to perform efficient model exchange between CAD and FEA software environments based on standards of exchange and particularly STEP [10]. Gilles Foucault put forward a Mesh Constraint Topology model with automatic adaptation operators aimed at transforming CAD model boundary decomposition into a FE model, featuring only meshrelevant faces, edges and vertices [11]. Hamri O. set up a new approach for CAD/E integration based on the concept of mixed representation, which allows the software architecture to explicitly maintain the links between these models and manipulate them [12].…”

Section: Current Conversion Methods From Cad To Caementioning

confidence: 99%

A Synchronous CAD/CAE Modeling Method and Applications in Parametric Parts Library

Pan¹,

Wang²,

Teng³

et al. 2015

TOMEJ

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Current parametric parts library cannot contribute to the reuse of finite element model. It is essential to remodel or exchange model for parts in CAE software. This paper presents a synchronous CAD/CAE modeling method, which can be employed in parts library based on Siemens NX software. Primary CAD and CAE information in part are merged into master model, which acts as cornerstone for solid model, FE model and simulation model. Thus, part models from parts library can be directly used into simulation analysis, and parametric amendment and change propagation is sustained. A software package developed for designers is helpful to search and achieve desired part from parts library. Three case studies are carried out to clarify synchronous CAD/CAE modeling process and change propagation procedure.

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Adaptation of CAD model topology for finite element analysis

Cited by 81 publications

References 13 publications

Determination of appropriate level of detail of a three-dimensional computer-aided design model from a permissible dissimilarity for fully automated simplification

Determination of appropriate level of detail of a three-dimensional computer-aided design model from a permissible dissimilarity for fully automated simplification

A survey of CAD model simplification techniques for physics-based simulation applications

A Synchronous CAD/CAE Modeling Method and Applications in Parametric Parts Library

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