IGA 2019. International Conference on Isogeometric Analysis

Pablo A. Kler pabloakler at gmail.com
Fri Apr 12 10:47:17 -03 2019

desde: 18-09-2019
hasta: 20-09-2019
lugar: Munich, Alemania

The Seventh International Conference on Isogeometric Analysis (IGA 2019)
will be organized in Munich, Germany, on 18-20 September 2019. The first
and the second conference of these series were held in Austin (Texas),
United States, on 13-15 January 2011 and 8-10 January 2014, the third was
held in Norway on 1-3 June 2015, the fourth in La Jolla, California, United
States on October 10-12, 2016, the fifth in Pavia, Italy on September
11-13, 2017. The sixth Thematic Conference on Isogeometric Analysis takes
place in Austin on Oct. 10-12, 2018.

The objective of IGA 2019 is to be a meeting place for researchers
developing computational methods and scientists and engineers focusing on
using Isogeometric methods for addressing challenging applications in
science and engineering.

The conference is one of the Thematic Conferences of the European Community
on Computational Methods in Applied Sciences (ECCOMAS) and one of the
Special Interest Conferences of the International Association for
Computational Mechanics (IACM).

Geometry is the foundation of analysis yet modern methods of computational
geometry have until recently had very little impact on analysis. As a
consequence, the CAGD - FEA interface gives rise to many problems. Perhaps
the most significant of all is the problem of translating CAGD files into
analysis-suitable FEA geometry and meshing, reputed to take 80% of overall
analysis time for complex engineering designs. The approximate,
polynomial-based geometry of FEA also creates difficulties in modeling
sliding contact, flows about 2 aerodynamic shapes, buckling of thin shells,
etc. Further problems arising in the transition of design to analysis
models due to ‘dirty geomertry’, i.e. where a CAD model is mathematically
inconsistent or has ‘small features’, which are not relevant for the design
but obscure a numerical analysis.It would seem that it is time to look at
more powerful descriptions of geometry to provide a new and more efficient
basis for analysis.

An attempt to address these issues and improve on FEA has led to the
introduction and development of Isogeometric Analysis, in which a single
geometric representation is utilized for design and analysis. Following
approaches have been proposed: Subdivision Surfaces, NURBS, Hierarchical
splines, T-splines and LR B-splines. NURBS are the industry standard for
CAGD systems used in engineering design. NURBS-based isogeometric analysis
has already been applied to fuids, structures, fluid-structure interaction,
phase-field modeling, electromagnetics, shape and topology optimization,
material modeling (e.g., implicit gradient damage models), discrete and
diffuse modeling of crack propagation, etc. Hierarchical splines,
T-splines, and LR B-splines that allow efficient local refinement while
maintaining higher-order continuity and exact geometry, have recently
attracted increasing attention.

Further important questions are consistent treatments of trimmed patches,
multi-patch geometry, an analysis integration to alternative geometry
descriptions like image-based models and the vast area of design
optimization, the overall design-to-analysis chain including advanced
industrial applications.The purpose of this workshop is to bring together
experts in geometry and analysis interested in the development of the new
generation of analysis procedures on modern methods of computational

Main Topics
CAGD and analysis-suitable geometry modeling

Alternative geometry descriptions and analysis integration

Mathematics of isogeometric methods
New isogeometric analysis technologies

Efficient implementation and software development

Complex and advanced applications
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