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Development of an automated characterization-representation framework for the modeling of polycrystalline materials in 3D

Groeber, Michael Anthony
http://rave.ohiolink.edu/etdc/view?acc_num=osu1187104216

Abstract Details

2007, Doctor of Philosophy, Ohio State University, Materials Science and Engineering.
Over the past few years there have been significant advances in developing microstructure characterization methods that provide quantitative data describing the structure and crystallography of grain-level microstructures in three dimensions (3D). This work utilizes one such method, serial sectioning, with a focus on the automation of the process. The subsequent analysis and representation of the collected information can provide modeling and simulation efforts with a highly-refined and unbiased characterization of specific microstructural features. The grain structure of an engineering alloy could be translated directly into a 3D volume mesh for subsequent Finite Element (FE) analysis. However, this approach requires a multitude of data sets in order to appropriately sample the intrinsic heterogeneity observed in typical microstructures. In order to circumvent this issue, computation tools can be used to create synthetic microstructures that are statistically-equivalent to the measured structure. This manuscript will focus on the automation of the data collection process, the subsequent processing of the data, the robust quantitative characterization of the 3D structure, and the development of software programs that generate a host of synthetic structures which are analogous to the real material. Finally, this thesis will introduce new methods for inferring the 3D structure of a microstructure from only 2D sections. Importantly, the objective of this study is to provide a framework towards complete microstructure representation that is consistent with quantifiable experimental data.
Somnath Ghosh (Advisor)
251 p.
Focused Ion Beam; Serial-Sectioning; 3D Microstructure Characterization; Materials Modeling; Synthetic Microstructures; Stereology

Recommended Citations

Citations

  • Groeber, M. A. (2007). Development of an automated characterization-representation framework for the modeling of polycrystalline materials in 3D [Doctoral dissertation, Ohio State University]. OhioLINK Electronic Theses and Dissertations Center. http://rave.ohiolink.edu/etdc/view?acc_num=osu1187104216

    APA Style (7th edition)

  • Groeber, Michael. Development of an automated characterization-representation framework for the modeling of polycrystalline materials in 3D. 2007. Ohio State University, Doctoral dissertation. OhioLINK Electronic Theses and Dissertations Center, http://rave.ohiolink.edu/etdc/view?acc_num=osu1187104216.

    MLA Style (8th edition)

  • Groeber, Michael. "Development of an automated characterization-representation framework for the modeling of polycrystalline materials in 3D." Doctoral dissertation, Ohio State University, 2007. http://rave.ohiolink.edu/etdc/view?acc_num=osu1187104216

    Chicago Manual of Style (17th edition)

osu1187104216
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© 2007, all rights reserved.
This open access ETD is published by The Ohio State University and OhioLINK.