ebook img

Numerical study of instability patterns of film-substrate systems PDF

216 Pages·2017·19.75 MB·English
by  Fan Xu
Save to my drive
Quick download
Download
Most books are stored in the elastic cloud where traffic is expensive. For this reason, we have a limit on daily download.

Preview Numerical study of instability patterns of film-substrate systems

Numerical study of instability patterns of film-substrate systems Fan Xu To cite this version: Fan Xu. Numerical study of instability patterns of film-substrate systems. Other. Université de Lorraine, 2014. English. ￿NNT: 2014LORR0309￿. ￿tel-01751474￿ HAL Id: tel-01751474 https://hal.univ-lorraine.fr/tel-01751474 Submitted on 29 Mar 2018 HAL is a multi-disciplinary open access L’archive ouverte pluridisciplinaire HAL, est archive for the deposit and dissemination of sci- destinée au dépôt et à la diffusion de documents entific research documents, whether they are pub- scientifiques de niveau recherche, publiés ou non, lished or not. The documents may come from émanant des établissements d’enseignement et de teaching and research institutions in France or recherche français ou étrangers, des laboratoires abroad, or from public or private research centers. publics ou privés. AVERTISSEMENT Ce document est le fruit d'un long travail approuvé par le jury de soutenance et mis à disposition de l'ensemble de la communauté universitaire élargie. Il est soumis à la propriété intellectuelle de l'auteur. Ceci implique une obligation de citation et de référencement lors de l’utilisation de ce document. D'autre part, toute contrefaçon, plagiat, reproduction illicite encourt une poursuite pénale. Contact : [email protected] LIENS Code de la Propriété Intellectuelle. articles L 122. 4 Code de la Propriété Intellectuelle. articles L 335.2- L 335.10 http://www.cfcopies.com/V2/leg/leg_droi.php http://www.culture.gouv.fr/culture/infos-pratiques/droits/protection.htm Universit(cid:19)e de Lorraine E(cid:19)cole doctorale EMMA UFR MIM (cid:19) Etude num(cid:19)erique des modes d’instabilit(cid:19)es des syst(cid:18)emes (cid:12)lm-substrat Numerical study of instability patterns of film-substrate systems (cid:18) THESE pr(cid:19)esent(cid:19)ee et soutenue publiquement le 02 d(cid:19)ecembre 2014 pour l’obtention du Doctorat de l’Universit(cid:19)e de Lorraine Spécialité : Mécanique des Matériaux par Fan XU Composition du jury Rapporteurs : Pr. Basile Audoly Universit(cid:19)e Pierre et Marie Curie (Paris 6), France Pr. Yibin Fu Keele University, UK Examinateurs : Pr. Martine Ben Amar E(cid:19)cole Normale Sup(cid:19)erieure, France Pr. Hachmi Ben Dhia E(cid:19)cole Centrale Paris, France Directeur : Pr. Michel Potier-Ferry Universit(cid:19)e de Lorraine, France Co-directeur : Dr. Salim Belouettar CRP Henri Tudor, Luxembourg Laboratoire d’E(cid:19)tude des Microstructures et de M(cid:19)ecanique des Mat(cid:19)eriaux | UMR CNRS 7239 Centre de Recherche Public Henri Tudor Mis en page avec la classe thloria. Acknowledgments After all the confusion or epiphany, depression or inspiration, sadness or happiness, finally it comes to the stage when we are modest and grateful, as the last thing that I learned from my doctoral studies. I would like to begin by expressing my most sincere gratitude to my Ph.D. advisor, Professor Michel Potier-Ferry, an inspiring and extraordinary person to work with during the entire span of this thesis. In addition to introducing me to the subject of instability and guiding me to grow in computational mechanics, his patient guidance and relentless pursuit of excellence have helped shape me into not only a good researcher with rigorous attitude but also a responsible and considerate person than I otherwise would have been. Plainly put, he has been a great mentor. It has been an honor and a privilege working with him over the last three years. Sincere appreciation is extended to my co-advisor, Dr. Salim Belouettar, for his kind supports and helps as well as deep trusts for giving me full autonomy in research activity. I would like to express my gratitude to the other thesis committee members, Professor Basile Audoly, Professor Yibin Fu, Professor Martine Ben Amar and Professor Hachmi Ben Dhia, for taking the time to read this thesis and for offering helpful comments and suggestions. Professor Basile Audoly and Professor Yibin Fu deserve a special thank for their inspiring and encouraging reports on this thesis. Many thanks go in particular to Professor Yanping Cao at Tsinghua University for his expert advice and valuable scientific discussions, which enlightened me and eliminated my confusions on some technical points. I would also like to record my gratitude to my colleagues and my friends, Dr. Yu Cong and Dr. Yao Koutsawa, for our scientific (and not-so-scientific) discussions. It has been a pleasure working with them. Special thanks go to Professor Hamid Zahrouni for allowing me to use his powerful workstation to perform heavy simulations. My thanks also go to my friends, Kodjo Attipou, Cai Chen, Yajun Zhao, Junliang Dong, Qi Wang, Dr. Wei Ye, Dr. Jingfei Liu, Dr. Kui Wang, Alex Gansen, Qian Shao, Sandra Hoffmann, Dr. Duc Tue Nguyen, etc. for sharing my joy and sadness, and offering helpsandsupportswheneverneeded. ItreasureeveryminutethatIhavespentwiththem. Lastly, I would like to give my most special thanks to my parents and my fiancée for their unconditional love, 24/7 support, share of happiness and for always believing in me. Without their encouragement I would never have made it this far. Financial support for this research was provided by AFR Ph.D. Grants from Fonds National de la Recherche of Luxembourg (Grant No. FNR/C10/MS/784868). i ii To my parents To my fiancée iii iv Table of contents List of Figures ix General introduction 1 Introduction générale 5 Chapter 1 Bibliographic review 9 1.1 Surface morphological instabilities of film/substrate systems . . . . . . . . 9 1.1.1 Literature review . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 1.1.2 Challenges and discussion . . . . . . . . . . . . . . . . . . . . . . . 16 1.2 Asymptotic Numerical Method for nonlinear resolution . . . . . . . . . . . 18 1.2.1 Perturbation technique . . . . . . . . . . . . . . . . . . . . . . . . . 19 1.2.2 Path parameter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21 1.2.3 Continuation approach . . . . . . . . . . . . . . . . . . . . . . . . . 21 1.2.4 Bifurcation indicator . . . . . . . . . . . . . . . . . . . . . . . . . . 22 1.3 Multi-scale modeling for instability pattern formation . . . . . . . . . . . . 23 1.4 Arlequin method for model coupling . . . . . . . . . . . . . . . . . . . . . 25 1.4.1 Energy distribution . . . . . . . . . . . . . . . . . . . . . . . . . . . 26 1.4.2 Coupling choices . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27 1.5 Chapter conclusion . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30 Chapter 2 Multiple bifurcations in wrinkling analysis of film/substrate sys- tems 31 2.1 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32 2.2 Mechanical model and dimensional analysis . . . . . . . . . . . . . . . . . 34 2.3 1D reduced model . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37 2.3.1 Kinematics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38 2.3.2 Finite element formulation . . . . . . . . . . . . . . . . . . . . . . . 39 v Table of contents 2.4 Resolution technique and bifurcation analysis . . . . . . . . . . . . . . . . 43 2.4.1 Path-following technique . . . . . . . . . . . . . . . . . . . . . . . . 43 2.4.2 Detection of bifurcation points . . . . . . . . . . . . . . . . . . . . . 46 2.5 Results and discussion . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48 2.5.1 Film/substrate with simply supported boundary conditions . . . . . 50 2.5.2 Film/substrate with clamped boundary conditions . . . . . . . . . . 51 2.5.3 Functionally Graded Material (FGM) substrate with simply sup- ported boundary conditions . . . . . . . . . . . . . . . . . . . . . . 55 2.5.4 FGM substrate with clamped boundary conditions . . . . . . . . . 58 2.5.5 FGM substrate with stiffening Young’s modulus . . . . . . . . . . . 58 2.5.6 Anisotropic substrate . . . . . . . . . . . . . . . . . . . . . . . . . . 64 2.5.7 Comments . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 64 2.6 Chapter conclusion . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 67 Chapter 3 Pattern formation modeling of 3D film/substrate systems 69 3.1 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 69 3.2 3D mechanical model . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 73 3.2.1 Nonlinear shell formulation for the film . . . . . . . . . . . . . . . . 74 3.2.2 Linear elasticity for the substrate . . . . . . . . . . . . . . . . . . . 76 3.2.3 Connection between the film and the substrate . . . . . . . . . . . . 77 3.3 Resolution technique and bifurcation analysis . . . . . . . . . . . . . . . . 78 3.3.1 Path-following technique . . . . . . . . . . . . . . . . . . . . . . . . 78 3.3.2 Detection of bifurcation points . . . . . . . . . . . . . . . . . . . . . 80 3.4 Results and discussion . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 81 3.4.1 Sinusoidal patterns . . . . . . . . . . . . . . . . . . . . . . . . . . . 83 3.4.2 Checkerboard patterns . . . . . . . . . . . . . . . . . . . . . . . . . 84 3.4.3 Herringbone patterns . . . . . . . . . . . . . . . . . . . . . . . . . . 89 3.5 Chapter conclusion . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 95 Chapter 4 Bridging techniques for pattern formation modeling 97 4.1 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 98 4.2 Macroscopic modeling of instability pattern formation . . . . . . . . . . . . 100 4.2.1 Description of the microscopic model . . . . . . . . . . . . . . . . . 100 4.2.2 Reduction procedure by Fourier series . . . . . . . . . . . . . . . . . 101 4.2.3 A simple macroscopic model with two real envelopes . . . . . . . . 102 vi

Description:
entific research documents, whether they are pub- lished or not. Ce document est le fruit d'un long travail approuvé par le jury de soutenance .. 5.4.2 Linear macroscopic elasticity for the substrate 2.5 Bifurcation curve of film/substrate system with simply supported boundary conditions.
See more

The list of books you might like

Most books are stored in the elastic cloud where traffic is expensive. For this reason, we have a limit on daily download.