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Hybrid Learning Models for Statistical Continuum Mechanics
Hybrid Learning Models for Statistical Continuum Mechanics
Detailed Information
- 자료유형
- 학위논문 서양
- 최종처리일시
- 20260202105604
- ISBN
- 9798265402875
- DDC
- 515.35
- 저자명
- Kelly, Conlain.
- 서명/저자
- Hybrid Learning Models for Statistical Continuum Mechanics
- 발행사항
- [Sl] : Georgia Institute of Technology, 2024
- 발행사항
- Ann Arbor : ProQuest Dissertations & Theses, 2024
- 형태사항
- 139 p
- 주기사항
- Source: Dissertations Abstracts International, Volume: 87-05, Section: B.
- 주기사항
- Advisor: Kalidindi, Surya.
- 학위논문주기
- Thesis (Ph.D.)--Georgia Institute of Technology, 2024.
- 초록/해제
- 요약This document summarizes my research aimed at creating interpretable and useful machine learning models to assist efforts in materials design. In particular, I focus on the problem of predicting local response fields (stresses and strains) over heterogeneous structures subjected to boundary loading conditions, also known as the localization problem. In a sense all of micromechanics consists of elasticity plus defect motion; my doctoral work extensively explores the first half of that equation in relation to machine learning. This thesis comprises three papers: an exploratory study applying iterative neural networks to elastic localization, a thermodynamically-informed iterative neural operator which generalizes these ideas to work over a wider range of microstructure classes and loading directions, and an extrapolation study which explores how far neural operators can be taken outside their training distribution by hybridizing them with FFT-based relaxation solvers. All three papers focus on purely elastic deformations, but keep an eye on the long-term goal of modeling time-dependent, dissipative deformations. These are contextualized as part of the general stochastic inverse problem known as process-structure-property modeling.Beyond the localization problem, I have been fortunate to collaborate on a number of works which build up different parts of the process-structure-property linkage. Most of these efforts have been published in the theses of Dr. Andreas Robertson and Dr. Adam Generale, so I only provide brief descriptions and summaries for each paper. In particular, I contextualize these works as part of the increasing alignment between the fields of deep learning, numerical methods, and continuum mechanics. The contributions of this thesis are thus twofold: to provide useful deep learning models which allow exploration of the microstructure space, and to advance a shared language bridging the conceptually-isolated fields of data-driven modeling and statistical continuum mechanics.
- 일반주제명
- Deep learning
- 일반주제명
- Homogenization
- 일반주제명
- Microstructure
- 일반주제명
- Deformation
- 일반주제명
- Mechanics
- 일반주제명
- Bridges
- 일반주제명
- Boundary conditions
- 일반주제명
- Materials fatigue
- 일반주제명
- Composite materials
- 일반주제명
- Materials science
- 일반주제명
- Mathematics
- 기본자료저록
- Dissertations Abstracts International. 87-05B.
- 전자적 위치 및 접속
- 로그인 후 원문을 볼 수 있습니다.
MARC
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■00520260202105604
■006m o d
■007cr#unu||||||||
■020 ▼a9798265402875
■035 ▼a(MiAaPQ)AAI32316044
■035 ▼a(MiAaPQ)GeorgiaTech76981
■040 ▼aMiAaPQ▼cMiAaPQ
■0820 ▼a515.35
■1001 ▼aKelly, Conlain.
■24510▼aHybrid Learning Models for Statistical Continuum Mechanics
■260 ▼a[Sl]▼bGeorgia Institute of Technology▼c2024
■260 1▼aAnn Arbor▼bProQuest Dissertations & Theses▼c2024
■300 ▼a139 p
■500 ▼aSource: Dissertations Abstracts International, Volume: 87-05, Section: B.
■500 ▼aAdvisor: Kalidindi, Surya.
■5021 ▼aThesis (Ph.D.)--Georgia Institute of Technology, 2024.
■520 ▼aThis document summarizes my research aimed at creating interpretable and useful machine learning models to assist efforts in materials design. In particular, I focus on the problem of predicting local response fields (stresses and strains) over heterogeneous structures subjected to boundary loading conditions, also known as the localization problem. In a sense all of micromechanics consists of elasticity plus defect motion; my doctoral work extensively explores the first half of that equation in relation to machine learning. This thesis comprises three papers: an exploratory study applying iterative neural networks to elastic localization, a thermodynamically-informed iterative neural operator which generalizes these ideas to work over a wider range of microstructure classes and loading directions, and an extrapolation study which explores how far neural operators can be taken outside their training distribution by hybridizing them with FFT-based relaxation solvers. All three papers focus on purely elastic deformations, but keep an eye on the long-term goal of modeling time-dependent, dissipative deformations. These are contextualized as part of the general stochastic inverse problem known as process-structure-property modeling.Beyond the localization problem, I have been fortunate to collaborate on a number of works which build up different parts of the process-structure-property linkage. Most of these efforts have been published in the theses of Dr. Andreas Robertson and Dr. Adam Generale, so I only provide brief descriptions and summaries for each paper. In particular, I contextualize these works as part of the increasing alignment between the fields of deep learning, numerical methods, and continuum mechanics. The contributions of this thesis are thus twofold: to provide useful deep learning models which allow exploration of the microstructure space, and to advance a shared language bridging the conceptually-isolated fields of data-driven modeling and statistical continuum mechanics.
■590 ▼aSchool code: 0078.
■650 4▼aPartial differential equations
■650 4▼aDeep learning
■650 4▼aHomogenization
■650 4▼aMicrostructure
■650 4▼aDeformation
■650 4▼aMechanics
■650 4▼aBridges
■650 4▼aBoundary conditions
■650 4▼aMaterials fatigue
■650 4▼aComposite materials
■650 4▼aMaterials science
■650 4▼aMathematics
■690 ▼a0346
■690 ▼a0800
■690 ▼a0794
■690 ▼a0405
■71020▼aGeorgia Institute of Technology.
■7730 ▼tDissertations Abstracts International▼g87-05B.
■790 ▼a0078
■791 ▼aPh.D.
■792 ▼a2024
■793 ▼aEnglish
■85640▼uhttp://www.riss.kr/pdu/ddodLink.do?id=T17360673▼nKERIS▼z이 자료의 원문은 한국교육학술정보원에서 제공합니다.
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