Academic Journal
How to overcome indetermination and interpenetration in granular systems via nonsmooth contact dynamics. An exploratory investigation
| العنوان: | How to overcome indetermination and interpenetration in granular systems via nonsmooth contact dynamics. An exploratory investigation |
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| المؤلفون: | Alart, Pierre |
| المساهمون: | Mathématiques et Modélisations en Mécanique (M3), Laboratoire de Mécanique et Génie Civil (LMGC), Université de Montpellier (UM)-Centre National de la Recherche Scientifique (CNRS)-Université de Montpellier (UM)-Centre National de la Recherche Scientifique (CNRS), Laboratoire de micromécanique et intégrité des structures (MIST), Institut de Radioprotection et de Sûreté Nucléaire (IRSN)-Centre National de la Recherche Scientifique (CNRS) |
| المصدر: | ISSN: 0045-7825 ; Computer Methods in Applied Mechanics and Engineering ; https://hal.science/hal-02075883 ; Computer Methods in Applied Mechanics and Engineering, 2014, 270, pp.37-56. ⟨10.1016/j.cma.2013.11.020⟩. |
| بيانات النشر: | HAL CCSD Elsevier |
| سنة النشر: | 2014 |
| المجموعة: | Université de Montpellier: HAL |
| مصطلحات موضوعية: | Nonsmooth contact dynamics, Multicontact systems, Granular mechanics, [SPI.MECA.MSMECA]Engineering Sciences [physics]/Mechanics [physics.med-ph]/Materials and structures in mechanics [physics.class-ph] |
| الوصف: | International audience ; The present paper is an exploratory investigation to overcome difficulties encountered in the simulation of dense granulates when a NSCD approach is used. Some simple examples permit identification of impulse indetermination as the main cause of the failure or the slowdown of the numerical algorithm. We propose to deal directly with the space of impulses with null resulting momentum. A prediction-correction scheme is detailed and enriched to restrict at best the interpenetration. Finally sophisticated tools are developed to preserve the sparsity of the matrices and consequently to ensure an efficient implementation of an adapted nonsmooth solver. |
| نوع الوثيقة: | article in journal/newspaper |
| اللغة: | English |
| DOI: | 10.1016/j.cma.2013.11.020 |
| الاتاحة: | https://hal.science/hal-02075883 https://hal.science/hal-02075883v1/document https://hal.science/hal-02075883v1/file/Art_Alart_CMAME_2014.pdf https://doi.org/10.1016/j.cma.2013.11.020 |
| Rights: | info:eu-repo/semantics/OpenAccess |
| رقم الانضمام: | edsbas.A934067B |
| قاعدة البيانات: | BASE |
| DOI: | 10.1016/j.cma.2013.11.020 |
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