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ABSTRACT................................................................................................................................................................ V y-@{
1 INTRODUCTION.................................................................................................................................................. 1 =_vW7-H
2 MOTIVATION....................................................................................................................................................... 3 Y|F~w~Cb
2.1 INTRODUCTION.................................................................................................................................................. 3 3t:/Guyom8
2.2 PROCEDURAL PROGRAMMING PARADIGM........................................................................................................... 3 Rj])c^ZA'*
2.3 OTHER PROGRAMMING PARADIGMS.................................................................................................................... 4 hixG/%aO
2.4 OBJECT-ORIENTED PROGRAMMING PARADIGM ................................................................................................... 5 Q>l5:2lq
2.5 REQUIREMENTS FOR LARGE PROGRAMMING SYSTEMS, OR HOW OBJECT-ORIENTED PROGRAMMING MEETS THE k\}\>&Zqu
GOALS................................................................................................................................................................ 6 ~_|ZUb
2.6 SUMMARY ......................................................................................................................................................... 8 U3M;6j9`
3 OBJECT-ORIENTED ANALYSIS: AIM AND FUNCTIONALITY OF THE FE FRAMEWORK $/$ 5{<
IMAGINE ............................................................................................................................................................... 9 pLsWy&G
3.1 INTRODUCTION.................................................................................................................................................. 9 }+GIrEDId
3.2 AIM OF THE FRAMEWORK .................................................................................................................................. 9 n~?n+\.&a
3.3 DOCUMENTATION............................................................................................................................................ 10 Cg];UB}k
3.4 OBJECT DATABASE .......................................................................................................................................... 10 YC =:W
3.4.1 Introduction .......................................................................................................................................... 10 FYX"q-Z
3.4.2 Persistence............................................................................................................................................ 11 ?9:~d#p
3.4.3 Object-oriented database ...................................................................................................................... 14 v&8s>~i`K
3.5 DEVELOPMENT ENVIRONMENT ......................................................................................................................... 16 L(t!C~3
3.6 FE KERNEL...................................................................................................................................................... 17 Oe"nNvu/
3.7 GEOMETRIC MODELING ................................................................................................................................... 18 U~q2j#pJ
3.8 POSTPROCESSING ............................................................................................................................................ 20 IT:8k5(L5j
3.9 PROJECT MANAGEMENT................................................................................................................................... 20 ]jgMN7
3.10 USER INTERFACE ............................................................................................................................................. 21 VhLS*YiSY
3.11 STATE OF THE ART .......................................................................................................................................... 22 ZXC_kmBN/
4 OBJECT-ORIENTED DESIGN AND IMPLEMENTATION OF THE FE FRAMEWORK IMAGINE ... 25 MWJ}
4.1 GUIDELINES..................................................................................................................................................... 25 hK 1 H'~c
4.2 ARCHITECTURE OF IMAGINE ......................................................................................................................... 26 [SU;U['7
4.3 PROJECT AND RESOURCE MANAGEMENT SUBSYSTEM ....................................................................................... 27 8\Kpc;zb
4.3.1 Project view and control........................................................................................................................ 27 x|GkXD3
4.3.2 Geometric modeling .............................................................................................................................. 29 _o'a|=Osx>
4.3.3 Project resources and their management .............................................................................................. 32 xt1Ug~5
4.3.4 Analysis and task control....................................................................................................................... 35 7&3
4.4 FE MODELING SUBSYSTEM ............................................................................................................................... 38 8M8Odz\3 q
4.4.1 Overview............................................................................................................................................... 38 ,C}s8|@k
4.4.2 Modeling classes and field variable classes .......................................................................................... 39 a9g~(#?a
4.4.2.1 Overview....................................................................................................................................................39 <N,:w`g#
4.4.2.2 Element concept.........................................................................................................................................42 @cu#rWiG
4.4.2.3 Node and degrees of freedom (DOF) concept.............................................................................................45 XNQPyZ2@|b
4.4.2.4 Load concept..............................................................................................................................................46 Czb:nyRj
4.4.2.5 Constraint concept......................................................................................................................................47
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4.4.2.6 Material concept.........................................................................................................................................48 ?(Ytc)
4.4.3 Numerical classes ................................................................................................................................. 49 H_FT%`iM
4.4.4 Global representations .......................................................................................................................... 51 Wg\MaZ6Di
4.4.5 Basic classes ...............................................................................................................................