scholarly journals Customized surgical template fabrication under biomechanical consideration by integrating CBCT image, CAD system and finite element analysis

2018 ◽  
Vol 37 (1) ◽  
pp. 6-14 ◽  
Author(s):  
Jian-Hong YU ◽  
Yu-Tzu WANG ◽  
Chun-Li LIN
Author(s):  
Brian Russ ◽  
Madan M. Dabbeeru ◽  
Andrew S. Chorney ◽  
Satyandra K. Gupta

Analyzing complex 3D assembly models using finite element analysis software requires suppressing parts that are not likely to influence the analysis results, but may significantly improve the computational performance during the analysis. The part suppression step often depends on many factors within the context and application of the model. Currently, most analysts perform this step manually. This step can take a long time to perform on a complex model and can be tedious in nature. In this paper, we present an approach to multi-part suppression based on the specified criteria. We have developed utilities in Pro/Engineer CAD system to identify parts that meet the specified criteria and suppress them. We present several examples to illustrate the value of the proposed approach.


Author(s):  
Brian Russ ◽  
Madan M. Dabbeeru ◽  
Andrew S. Chorney ◽  
Daniel Skelley ◽  
Satyandra K. Gupta

Analyzing complex 3D models using finite element analysis software requires suppressing parts that are not likely to influence the analysis results, but may significantly improve the computational performance both in terms of mesh size and mesh quality. The feature suppression step often depends on the context and application. Currently, most analysts perform this step manually. This step can take a long time to perform on a complex model and can be tedious in nature. In this paper, we present a rule-based approach to feature suppression. We have developed a decision-tree based representation for capturing feature suppression rules. We have also developed utilities in Pro/Engineer CAD system to identify features that meet these rules and suppress them. We present several examples to illustrate the value of the proposed approach.


2006 ◽  
Vol 128 (05) ◽  
pp. 46-48 ◽  
Author(s):  
Jean Thilmany

This paper highlights the design of finite element analysis (FEA) without the finite element. The analysis can use the same information, the CAD system used to create the geometry in the first place. The geometry as well as the analysis fields-like displacement or temperature all uses the non-uniform rational B-spline mathematical representation. Software makers generally use the NURBS mathematical model to generate curves and surfaces in a digitized image. The framework lets mechanical engineers run quick, what-if scenarios to determine how changing a piece of a subassembly would affect the entire assembly. The full assembly need not be remeshed.


2002 ◽  
Vol 11 (1) ◽  
pp. 30-40 ◽  
Author(s):  
Chatchai Kunavisarut ◽  
Lisa A. Lang ◽  
Brian R. Stoner ◽  
David A. Felton

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