FR3091279B1 - Procédé et dispositif de simulation d’une réponse d’un chargement de matériau énergétique solide - Google Patents

Procédé et dispositif de simulation d’une réponse d’un chargement de matériau énergétique solide Download PDF

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FR3091279B1
FR3091279B1 FR1874168A FR1874168A FR3091279B1 FR 3091279 B1 FR3091279 B1 FR 3091279B1 FR 1874168 A FR1874168 A FR 1874168A FR 1874168 A FR1874168 A FR 1874168A FR 3091279 B1 FR3091279 B1 FR 3091279B1
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loading
physical variable
instant
energetic material
simulating
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FR3091279A1 (fr
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Pierre Brunet
Gilles Poirey
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ArianeGroup SAS
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ArianeGroup SAS
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    • C—CHEMISTRY; METALLURGY
    • C06—EXPLOSIVES; MATCHES
    • C06B—EXPLOSIVES OR THERMIC COMPOSITIONS; MANUFACTURE THEREOF; USE OF SINGLE SUBSTANCES AS EXPLOSIVES
    • C06B21/00—Apparatus or methods for working-up explosives, e.g. forming, cutting, drying
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F30/00—Computer-aided design [CAD]
    • G06F30/20—Design optimisation, verification or simulation
    • G06F30/23—Design optimisation, verification or simulation using finite element methods [FEM] or finite difference methods [FDM]
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F2111/00—Details relating to CAD techniques
    • G06F2111/10—Numerical modelling

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Computer Hardware Design (AREA)
  • Evolutionary Computation (AREA)
  • Geometry (AREA)
  • General Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Management, Administration, Business Operations System, And Electronic Commerce (AREA)
  • Manufacture And Refinement Of Metals (AREA)

Abstract

Procédé et dispositif de simulation d’une réponse d’un chargement de matériau énergétique solide Procédé de simulation d’une réponse d’un chargement de matériau énergétique solide initié en combustion comprenant :- une étape d’obtention (E10) d’un modèle numérique discrétisé spatialement (MOD) du chargement et comprenant une pluralité d’éléments finis ;- une étape de détermination (E20) d’une localisation du front réactif à partir de valeurs d’une variable physique à une pluralité d’instants postérieurs pour la pluralité d’éléments finis du modèle numérique, la variable physique étant représentative d’une quantité de matériau énergétique solide à un instant donné et en un volume donné du chargement, ladite étape de détermination comprenant, pour obtenir lesdites valeurs, la résolution (E24,E26) à chaque instant postérieur et pour chaque élément fini, d’une équation de transport régissant ladite variable physique, l’équation de transport résolue comprenant, pour chaque élément fini dont une valeur de la variable physique à un instant précédent ledit instant postérieur est supérieure à un seuil déterminé et ayant au moins un élément fini voisin ayant une valeur de ladite variable physique audit instant précédent inférieure ou égale au seuil déterminé. Figure pour l’abrégé : Fig. 3.
FR1874168A 2018-12-26 2018-12-26 Procédé et dispositif de simulation d’une réponse d’un chargement de matériau énergétique solide Active FR3091279B1 (fr)

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Application Number Priority Date Filing Date Title
FR1874168A FR3091279B1 (fr) 2018-12-26 2018-12-26 Procédé et dispositif de simulation d’une réponse d’un chargement de matériau énergétique solide

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Application Number Priority Date Filing Date Title
FR1874168A FR3091279B1 (fr) 2018-12-26 2018-12-26 Procédé et dispositif de simulation d’une réponse d’un chargement de matériau énergétique solide

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FR3091279A1 FR3091279A1 (fr) 2020-07-03
FR3091279B1 true FR3091279B1 (fr) 2021-01-15

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8200464B2 (en) * 2009-04-01 2012-06-12 Livermore Software Technology Corporation Explosion simulation in finite element analysis
WO2011024205A2 (fr) * 2009-08-28 2011-03-03 Tata Consultancy Services Ltd Gaz propulseur non toxique pour allumeur de système de gonflement d'airbag

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