Project Title:
Extraction of Design Information from Three-Dimensional, Computerized Tomography
06.09-7780
911136
Extraction of Design Information from Three-Dimensional, Computerized Tomography
Data
Advanced Research & Applications Corporation
425 Lakeside Drive
Sunnyvale
CA
94086
Nicolas J.
Dusaussoy
408-733-7780
MSFC
NAS8-39301
118
06.09-7780
911136
Abstract:
Extraction of Design Information from Three-Dimensional, Computerized Tomography
Data
An innovative approach for generating computer-automated design (CAD) and computer-automated
manufacturing (CAM) models from volumetric computerized tomography (CT) data will
be developed. This innovation relies on novel image processing algorithms for meshing
surfaces and on advanced CT techniques for extracting subpixel surface information.
This project addresses important deficiencies currently precluding the automation
of stress analysis, model replication, and failure analysis of flawed parts from
CT data. Such methods that have been shown to be applicable to advanced composites
rely on coupling an accurate three-dimensional geometric description of the part
inspected (CAD/CAM) and the associated material information extracted from the CT
data into an appropriate finite element model (FEM). The project will enable the
execution of both of these critical functions in an adaptive fashion.
The availability of an accurate, adaptive data link between the unique quantitative
nature of volumetric CT data bases and CAD/CAM and FEM modeling capabilities should
have a significant impact on the fields of industrial stress analysis and design,
reverse engineering and model replication, and failure analysis. A commercial software
package would allow users to take better advantage of the installed and growing base
of industrial CT systems.
computerized tomography (CT), computer-automated design (CAD), computer-automated
manufacturing (CAM), finite-element method (FEM), computer graphics