서브메뉴
검색
Microscale Modeling of Thermal Protection Materials Based on X-Ray Microtomography
Microscale Modeling of Thermal Protection Materials Based on X-Ray Microtomography
상세정보
- 자료유형
- 학위논문 서양
- 최종처리일시
- 20260202105609
- ISBN
- 9798265426956
- DDC
- 005
- 서명/저자
- Microscale Modeling of Thermal Protection Materials Based on X-Ray Microtomography
- 발행사항
- [Sl] : Stanford University, 2024
- 발행사항
- Ann Arbor : ProQuest Dissertations & Theses, 2024
- 형태사항
- 222 p
- 주기사항
- Source: Dissertations Abstracts International, Volume: 87-05, Section: B.
- 주기사항
- Advisor: Elschot, Sigrid;Farhat, Charbel.
- 학위논문주기
- Thesis (Ph.D.)--Stanford University, 2024.
- 초록/해제
- 요약In many materials science applications, physical phenomena can manifest across broad spatial and temporal scales. In my field of interest, modeling Thermal Protection System (TPS) materials for spacecraft atmospheric entry, spatial dimensions vary from the entire heat shield to the material's microstructure and even down to the atomic structure of the constituent materials. Multiscale modeling efforts aim to connect these spatial scales by utilizing results or effective behaviors from smaller scales to inform models at larger scales.This thesis introduces numerical methodologies, practical considerations, and applications in the microscale modeling of TPS materials. These efforts include the calculation of effective macroscale material properties and material response, with the goal of informing models used to predict system-level performance.In this research, X-ray microtomography imaging is used to obtain a detailed description of the material's microstructure. Numerical methods tailored for microtomography data were developed and discussed.These methods are integrated into the Porous Microstructure Analysis (PuMA) software, a tool that was created in 2014 and is under active development in collaboration with the NASA Ames Research Center. The thesis begins with an overview of image-based materials modeling and an introduction to the PuMA software. It then discusses calculations of material properties and statistical analyses for simulations based on X-ray microtomography data. Specific physical and numerical models are then elaborated in dedicated chapters. These include continuum to rarefied tortuosity, strategies for handling anisotropic materials, cut-cell heat transfer, and a microscale solver for diffusion-reaction processes. The ultimate goal of this research is to develop numerical methods, workflows, and best practices for predictive materials modeling at the microscale. Although this thesis presents results from simulations on specific fibrous and woven TPS materials, the underlying methods are the primary contribution of this work, particularly since many real TPS materials are subject to export control.While originally developed for modeling thermal protection materials, many of the mathematical and numerical models presented in this thesis are applicable to a wide range of materials science applications including the study of batteries, composites, and geological applications among others.
- 일반주제명
- User interface
- 일반주제명
- Software
- 일반주제명
- Tomography
- 일반주제명
- Carbon fibers
- 일반주제명
- Oxidation
- 일반주제명
- Heat conductivity
- 일반주제명
- Boundary conditions
- 일반주제명
- Visualization
- 일반주제명
- Mathematics
- 일반주제명
- Medical imaging
- 일반주제명
- Thermodynamics
- 기타저자
- Stanford University.
- 기본자료저록
- Dissertations Abstracts International. 87-05B.
- 전자적 위치 및 접속
- 로그인 후 원문을 볼 수 있습니다.
MARC
008260126s2024 us c eng d■001000017360715
■00520260202105609
■006m o d
■007cr#unu||||||||
■020 ▼a9798265426956
■035 ▼a(MiAaPQ)AAI32316381
■035 ▼a(MiAaPQ)Stanfordcy161hh4902
■040 ▼aMiAaPQ▼cMiAaPQ
■0820 ▼a005
■1001 ▼aFerguson, Joseph C.
■24510▼aMicroscale Modeling of Thermal Protection Materials Based on X-Ray Microtomography
■260 ▼a[Sl]▼bStanford University▼c2024
■260 1▼aAnn Arbor▼bProQuest Dissertations & Theses▼c2024
■300 ▼a222 p
■500 ▼aSource: Dissertations Abstracts International, Volume: 87-05, Section: B.
■500 ▼aAdvisor: Elschot, Sigrid;Farhat, Charbel.
■5021 ▼aThesis (Ph.D.)--Stanford University, 2024.
■520 ▼aIn many materials science applications, physical phenomena can manifest across broad spatial and temporal scales. In my field of interest, modeling Thermal Protection System (TPS) materials for spacecraft atmospheric entry, spatial dimensions vary from the entire heat shield to the material's microstructure and even down to the atomic structure of the constituent materials. Multiscale modeling efforts aim to connect these spatial scales by utilizing results or effective behaviors from smaller scales to inform models at larger scales.This thesis introduces numerical methodologies, practical considerations, and applications in the microscale modeling of TPS materials. These efforts include the calculation of effective macroscale material properties and material response, with the goal of informing models used to predict system-level performance.In this research, X-ray microtomography imaging is used to obtain a detailed description of the material's microstructure. Numerical methods tailored for microtomography data were developed and discussed.These methods are integrated into the Porous Microstructure Analysis (PuMA) software, a tool that was created in 2014 and is under active development in collaboration with the NASA Ames Research Center. The thesis begins with an overview of image-based materials modeling and an introduction to the PuMA software. It then discusses calculations of material properties and statistical analyses for simulations based on X-ray microtomography data. Specific physical and numerical models are then elaborated in dedicated chapters. These include continuum to rarefied tortuosity, strategies for handling anisotropic materials, cut-cell heat transfer, and a microscale solver for diffusion-reaction processes. The ultimate goal of this research is to develop numerical methods, workflows, and best practices for predictive materials modeling at the microscale. Although this thesis presents results from simulations on specific fibrous and woven TPS materials, the underlying methods are the primary contribution of this work, particularly since many real TPS materials are subject to export control.While originally developed for modeling thermal protection materials, many of the mathematical and numerical models presented in this thesis are applicable to a wide range of materials science applications including the study of batteries, composites, and geological applications among others.
■590 ▼aSchool code: 0212.
■650 4▼aUser interface
■650 4▼aSoftware
■650 4▼aTomography
■650 4▼aCarbon fibers
■650 4▼aOxidation
■650 4▼aHeat conductivity
■650 4▼aBoundary conditions
■650 4▼aVisualization
■650 4▼aMathematics
■650 4▼aMedical imaging
■650 4▼aThermodynamics
■690 ▼a0405
■690 ▼a0574
■690 ▼a0348
■71020▼aStanford University.
■7730 ▼tDissertations Abstracts International▼g87-05B.
■790 ▼a0212
■791 ▼aPh.D.
■792 ▼a2024
■793 ▼aEnglish
■85640▼uhttp://www.riss.kr/pdu/ddodLink.do?id=T17360715▼nKERIS▼z이 자료의 원문은 한국교육학술정보원에서 제공합니다.


