Novel Isogeometric Analysis Based Automation of High-Fidelity Finite Element Analysis Model Creation from Computer Aided Design Navy SBIR FY2015.1 Sol No.: Navy SBIR FY2015.1 Topic No.: N151-009 Topic Title: Novel Isogeometric Analysis Based Automation of High-Fidelity Finite Element Analysis Model Creation from Computer Aided Design Proposal No.: N151-009-0619 Firm: Technical Data Analysis, Inc. 3190 Fairview Park Drive Suite 650 Falls Church, Virginia 22042 Contact: Subhasis Sarkar Phone: (703) 226-4069 Abstract: There exists a gap today in the Computer Aided Design (CAD) technology that is used for designing parts and the Finite Element Method (FEM) technology that is used for engineering analysis. The CAD files are first generated and then are converted into appropriate input files for FEM. CAD and FEM use different mathematical representations of geometry and converting one form into another is a laborious and time consuming process. In this SBIR effort, TDA's team and its university partner, University of Texas at Austin (Prof. T. J. R. Hughes and Prof. G. Rodin), will use a novel technique known as isogeometric analysis, first proposed by Prof. Hughes, to bridge the gap between CAD and FEM. In isogeometric analysis, the same basis functions are used to represent geometry and the solution space, and as a result, CAD and FEM can be effectively combined. An integrated framework will be developed where CAD modeling, isogeometric analysis and post-processing of results, will all be performed in a seamless manner. The focus will be towards creation of analysis suitable input files from CAD software or from reversed engineered parts, development of isogeometric finite/boundary element codes, and creation of output files viewable in a graphical post-processor. Benefits: TDA team will develop an integrated IGA toolkit (IGAT) which will be will be welcomed widely by the industry, as there is a need for such a toolkit to go directly from CAD to analysis. The IGA paradigm gives rise to a rich interchange between Computer Aided Geometry for Design, Computational Geometry and Numerical Modelling. TDA's integrated IGA tool kit will bridge these areas to overcome from switching one set of tools to the next. Once developed, the IGA toolkit can be enhanced in future to include developments in the generation of 3D T-Splines, applications of LR-splines, parametric volume intersections, volume on volume representations and numerous other technologies. The framework will be developed using modular components and open architecture and the lessons learnt from this effort can be extended to other domains such as acoustics, electromagnetism, solid-liquid interactions, etc. Return