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Towards a seamless Integration of CAD and Simulation: CISM Course 2017
Bordas, Stéphane
2017
 

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UDINE_2017_introduction.pdf
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a_priori_a_posteriori_error_estimation_shortCourse.pdf
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Introduction
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FEM_CrashCourse.pptx
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Introduction
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UDINE_2017_dicontinuities.pdf
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Discontinuities
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UDINE_2017_enrichment_of_LagrangeFEM_and_IGAFEM.pdf
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Discontinuities
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UDINE_2017_error_estimation.pdf
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Discontinuities
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UDINE_2017_Nitsche.pdf
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Nitsche's method
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NitschesMethodBasics.pptx
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Nitsche's method
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UDINE_2017_IGABEM_CRACKS.pptx
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IGABEM Cracks and Optimisation
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IGABEM Cracks and Optimisation
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IGABEM Cracks and Optimisation
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UDINE_2017_PARAMETRISATION.pdf
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Parameterisation in isogeometric analysis
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Parameterisation in isogeometric analysis
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2017_UDINE_GIFT.pdf
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Generalizing IGA: the Geometry Independent Field approximaTion (GIFT)
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2017_UDINE_GIFT_IGA_errorEstimation_Detailed.pdf
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Generalizing IGA: the Geometry Independent Field approximaTion (GIFT)
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2017_GIFT_IGA_errorEstimation_Dynamics.pdf
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Generalizing IGA: the Geometry Independent Field approximaTion (GIFT)
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CFRAC17_PIERARD_Presentation.zip
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Error estimation for 3D crack propagation LaTeX Sources
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XDMS_2017_AGATHOS_Presentation.zip
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Conditioning of enriched finite element matrices for fracture
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presentation.pdf
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Conditioning of enriched finite element matrices for fracture
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XDMS_2017_Bordas_AverageResolution_withLinks.pdf
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Advances in Enriched Methods for Engineering and Medicine
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XDMS_2017_Introduction.key
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Advances in Enriched Methods for Engineering and Medicine
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IGA_Enrichment_Phu.key
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Error estimation in finite elements
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Error estimation in finite elements
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fracture_introduction.pdf
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Error estimation in finite elements
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UDINE_2017_ErrorEstimationShortCourseNotes.pdf
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Error estimation in finite elements
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UCLworkshop.rar
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Well-conditioned XFEM and level sets for fracture
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UDINE_2017_ModelOrderReduction.pdf
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Model order reduction for fracture - homogenisation and proper orthogonal decomposition
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2015_Washington_ReducedOrder.pptx
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Model order reduction for fracture - homogenisation and proper orthogonal decomposition
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Annexes
2017_GIFT_IGA_errorEstimation_Dynamics.ppt
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GIFT for dynamics and error estimation
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GIFT_GeneralizingIGA_Weakening-tight-coupling.zip
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nitsche-iga.zip
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advanced-reduced-order.zip
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Keywords :
CAD; IGA; GIFT; geometry independent field approximation; fracture mechanics; shape optimisation; error estimation
Abstract :
[en] Isogeometric analysis relies on the use of the same basis functions as employed in Computer Aided Design (CAD). This offers the possibility to facilitate design and optimisation. The previous course “Isogeometric methods for numerical simulation” held in 2013 had the aim to give an introduction to isogeometric analysis, its advantages, drawbacks and to the range of its applications. The aim of the proposed new course will be different. The focus will be more on the connection of simulation to CAD systems and how CAD data can be used directly for simulation, leading to a seamless integration. An overview of recent advances and applications will be also presented. The course will start with an introduction to NURBS and their use in describing geometry and in simulation. This will be followed by lectures from a CAD vendor describing the current state of development. Currently available connections to simulation software will also be discussed. Next the use of NURBS for 3D structural analysis, structural optimisation and damage tolerance assessment will be presented, including such advanced topics as the treatment of discontinuities and real-time solvers. It will also be discussed when it might be advantageous to decouple the boundary discretisation from the field variable discretisation, in particular in shape optimisation. Isogeometric methods for the analysis of beam and shell structures, including shape optimisation and fluid structure interaction, will be presented. Lectures on the mathematical and algorithmic foundations of analysis-suitable geometry will follow. This includes an introduction to T-splines and multilevel spline schemes such as hierarchical B- splines. Common analysis-suitable spline algorithms will be presented in the context of Bézier extraction and projection as well as its application as a foundation for integrated engineering design and analysis. An important aspect of analysis-suitable geometry is the ability to locally adapt the smooth spline basis. Several common refinement algorithms will be reviewed as well as their application in several demanding areas of application. The emerging area of weak geometry will be introduced as well as its application to the rapid construction of complex structural assemblies. With the rapid development of isogeometric analysis in recent years, there is an urgent need for volumetric parameterization such as volumetric T-spline model construction. Several volumetric T- spline modeling techniques, that were developed in recent years will be presented. They include converting any quad/ hex meshes to standard and rational T-splines, polycube-based parametric mapping, feature preservation using eigenfunctions, Boolean operations and skeletons, truncated hierarchical Catmull-Clark subdivision, weighted T-splines, conformal T-spline modeling, as well as incorporating T-splines into commercial CAD and FEA software, will be presented. The target audience will be engineers, interested in simulation, software developers and researchers.
Research center :
Department of Computational Engineering Sciences
Disciplines :
Engineering, computing & technology: Multidisciplinary, general & others
Author, co-author :
Bordas, Stéphane ;  University of Luxembourg > Faculty of Science, Technology and Communication (FSTC) > Engineering Research Unit
Language :
English
Title :
Towards a seamless Integration of CAD and Simulation: CISM Course 2017
Publication date :
09 June 2017
Publisher :
CISM, Udine, Italy
Edition :
2017
Collection name :
International Centre for Mechanical Sciences Advanced Courses - Centre International des Sciences Mécaniques, Udine, Italy
Course title or code :
courses_C1704_C1704_Beer_Bordas
Institution :
International Centre for Mechanical Sciences - Centre International des Sciences Mécaniques, Udine, Italy
European Projects :
FP7 - 279578 - REALTCUT - Towards real time multiscale simulation of cutting in non-linear materials with applications to surgical simulation and computer guided surgery
FnR Project :
FNR8813215 - Computational Biomechanics For Medicine: Beyond The Frontiers Of Mechanics, 2014 (01/03/2015-28/02/2017) - Stéphane Bordas
Funders :
CE - Commission Européenne [BE]
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