Code_Aster / Salomé_Méca 1. Short overview 2. How we make it 3. Focuses on capabilities 4. Goals and stakes 5. How to get it

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Elfreda Nelson
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2 Code_Aster / Salomé_Méca 1. Short overview 2. How we make it 3. Focuses on capabilities 4. Goals and stakes 5. How to get it 2

3 1 Short overview An all-purpose FEM simulation software for structural analysis : Plugged in a user-friendly environment : Salome_Meca 3

4 1 Short overview of Code_Aster A large scope of capabilities Thermal and mechanical Statics and dynamics, linear or not Modal analysis, harmonic and random response 400 finite elements : 3D, 2D, shells, beams, pipes Wide range of loadings Interaction with other physics (coupled or not) : fluid, soil structure computation, electro-magnetism 4

5 1 Short overview of Code_Aster Non linearities and specific models Contact, friction Large displacements, large deformations Behaviour models ( 100 constitutive laws) Porous media, fracture mechanics, damage, fatigue, welding, seismic analysis 5

6 1 Short overview A solver plugged in Salome environment 6

7 1 Short overview A solver plugged in Salome environment 7

2 Why we make it Specific requirements of

Specific problems : ageing of structures,

manufacturing industry and software vendors.

8 2 Why we make it Specific requirements of nuclear industry Regulatory design, safety Specific problems : ageing of structures, re-evaluation of margins Stakes differ from manufacturing industry and software vendors. Research and developments Capitalization of know-how and models, quick transfer to engineering Mastering of source code, models Choice of in-house development 8

9 2 How we make it (some figures) 60 releases each year 200 in-house users documents freely available ( pages) 15 PHD for the 8 last years 250 new features in the code in tests runned for each release CPU hours 4 training sessions, 40 listeners each ASTER as a free software : downloads, hits a week 9

10 2 How we make it source lines x nb tests nb doc pages x 10 Version 8 déc nb in-house users CPU hours x100 mise en libre Version 6 nov Version 7 déc Version 2 oct. 93 Version 4 avr. 98 Version 5 oct Version 3 juin /89 07/90 07/91 07/92 07/93 07/94 07/95 07/96 07/97 07/98 07/99 07/00 07/01 07/02 07/03 07/04 07/05 07/06 10

2 How we make it A network of programmers (like a free software) A core team in charge of : kernel development, integration, distribution [~20 engineers.

11 2 How we make it A network of programmers (like a free software) A core team in charge of : kernel development, integration, distribution [~20 engineers.year] Applicative projects : bring new models / developements [~40 engineers.year] Continuous process : no V cycle, no predefined specifications A life cycle of 2 years : the developped version is transfered to engineering after a qualification process 11

3 Focuses on capabilities (1/5) Structure finite

deformations/rotations Driving forces and

France 300 250 200 150 100 Département Mécanique et

5 10 15 20 25 30x10-4 deplacement du point central

1992-1999 Endommagement 0.00 0.05 0.10 0.15 0.20 0.

12 3 Focuses on capabilities (1/5) Structure finite elements Contact-friction 12 Large deformations/rotations Driving forces and displacements force (P*S) en kn EDF Electricité de France Département Mécanique et Modèles Numériques COURBE FORCE / DEPLACEMENT x10-4 deplacement du point central (face superieure) agraf 13/03/2001 (c) EDF/DER Endommagement AMPLITUDE DEFORMEE 1.00E+02

13 3 Focuses on capabilities (2/5) Damage Fracture Fatigue 13

14 3 Focuses on capabilities (3/5) Dynamics Acoustics Fluid forces SFSI, SSI VAL ISO >-5.63E+02 < 9.61E E E E E E E E E E E E E E E E E E E E AMPLITUDE DEFORMEE 5.00E+03

15 3 Focuses on capabilities (4/5) Porous media and geomaterials Civil engineering Concrete 15

16 3 Focuses on capabilities (5/5) Multi-scale Multi-physics Coupling and chaining 16

3 Focuses on capabilities : samples 3D simulation

flow in a waste storage repository, Deformations

cycles, Extension and stop of a crack in a

Computation of the leak flow in the containment,

17 3 Focuses on capabilities : samples 3D simulation of excavation, damage, re-saturation and Darcy flow in a waste storage repository, Deformations of a complete core during several irradiation cycles, Extension and stop of a crack in a pressure vessel after a thermohydraulic transient, Computation of the leak flow in the containment, 3D crack propagation in a rotor, Simulation of a complete shaftline 17

4 Goals and stakes High performance computing Increasing size of

consortium Research partnerships Interoperability http://www.

org Easy coupling with other physics in Salomé environment

18 4 Goals and stakes High performance computing Increasing size of models Super-computer trends Partnership policy Free software consortium Research partnerships Interoperability Easy coupling with other physics in Salomé environment Management Simulation process : user-friendly, quality and reliability While Code_aster remains the place in which we capitalize researches 18

19 5 How to get Code_Aster stand alone? 19

20 5 How to get Code_Aster stand alone? 20

21 5 How to get Salome_Meca? We are not in charge of the «free» distribution but we can give it to partners or to whoever wants to distribute it. For instance : 21

22 Thanks 22

Structural mechanics simulation at Electricité de France Needs and consequences on software policy

Structural mechanics simulation at Electricité de France Needs and consequences on software policy Christophe DURAND, Code_Aster project manager, EDF R&D Outline Engineering challenges induce simulation