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Description:: Additive manufacturing (AM), also known as three-dimensional (3D) printing, has received considerable interests in recent years. It enables fabrication of complex, customizable parts that would otherwise be too expensive or impossible for traditional manufacturing methods. 3D printing encompasses a wide variety of processes, including photopolymerization, material extrusion, selective laser sintering,...
Keyword:: Optical Imaging System, Continuous Liquid Interface Production, and Additive Manufacturing
Subject:: Mechanical engineering
Creator:: Hai, Rihan
Owner:: Scholarly Digital Publishing
Language:: en
Date Uploaded:: 06/22/2022
Date Created:: 2022-01-01
Resource Type:: Dissertation
Alternate Identifier:: http://dissertations.umi.com/northwestern:16043 and etdadmin_upload_900931

Description:: Mixing by cutting-and-shuffling (like that for a deck of cards or a Rubik's cube) is a paradigm that has not been studied in detail even though it can be applied in a variety of situations including the mixing of granular materials. Mathematically, cutting- and-shuffling is described by piecewise isometries (PWIs),...
Keyword:: granular materials, mixing, machine learning, piecewise isometries, cutting-and-shuffling, and interval exchange transforms
Subject:: Applied mathematics, Chemical engineering, and Mechanical engineering
Creator:: Lynn, Thomas Ferguson
Owner:: Scholarly Digital Publishing
Language:: en
Date Uploaded:: 06/22/2022
Date Created:: 2022-01-01
Resource Type:: Dissertation
Alternate Identifier:: etdadmin_upload_881325 and http://dissertations.umi.com/northwestern:15951

Description:: Manufacturing processes are known for their intricacies in changing material shapes and properties. New generations of manufacturing technologies, known as flexible manufacturing, are moving toward design freedom, which allows producing parts with optimized geometries and high customizations at an affordable cost even for low-volume productions. Two prominent flexible manufacturing processes...
Keyword:: Neural Network, Reinforcement Learning, Manufacturing, Additive Manufacturing, and Artificial Intelligence
Subject:: Computational physics, Mechanical engineering, and Computer science
Creator:: Mozaffar, Mojtaba
Owner:: Scholarly Digital Publishing
Language:: en
Date Uploaded:: 10/07/2021
Date Created:: 2021-01-01
Resource Type:: Dissertation
Alternate Identifier:: http://dissertations.umi.com/northwestern:15685 and etdadmin_upload_839531

Description:: In recent years Additive Manufacturing (also known as 3D printing) processes have risen in use within research and industry to create complex, custom parts, which would be otherwise too expensive or even impossible to fabricate via conventional manufacturing methods. While originated as a tool for rapid prototyping, the improvements in...
Keyword:: Scaffolds, Fabrication Accuracy, Biomedical, and Additive Manufacturing
Subject:: Mechanical engineering
Creator:: Ware, Henry Oliver Tenadooah
Owner:: Scholarly Digital Publishing
Language:: en
Date Uploaded:: 01/21/2021
Date Created:: 2020-01-01
Resource Type:: Dissertation
Alternate Identifier:: http://dissertations.umi.com/northwestern:15077 and etdadmin_upload_741389

Description:: Polymer nanocomposites are a class of advanced materials comprised of soft polymer matrix and nano-filler inclusions. While it has been found qualitatively that enhancements of material properties could be achieved by dispersing inorganic nano-particles into organic polymer matrix, the intrinsic governing principles of such composite has not been thoroughly studied...
Keyword:: Interphase, Data Mining, Design Optimization, Finite Element Analysis, Deep Learning, and Microstructure Characterization and Reconstruction
Subject:: Mechanical engineering, Computer science, and Engineering
Creator:: Li, Xiaolin
Owner:: Scholarly Digital Publishing
Language:: en
Date Uploaded:: 02/12/2020
Date Created:: 2018-01-01
Resource Type:: Dissertation
Alternate Identifier:: http://dissertations.umi.com/northwestern:14436 and etdadmin_upload_625304

Description:: The heart of computational materials science lies in providing fundamental insights and understanding of materials behavior and properties across different scales. The significance of this task is highlighted by the Materials Genome Initiative and the emergence of computational tools and frameworks such as materials by design, microstructure sensitive design, and...
Keyword:: random Process, Multiscale simulation, Microstructure, Gaussian process, and Uncertainty
Subject:: Materials Science, Statistics, and Mechanical engineering
Creator:: Bostanabad, Ramin
Owner:: Scholarly Digital Publishing
Language:: en
Date Uploaded:: 02/12/2020
Date Created:: 2019-01-01
Resource Type:: Dissertation
Alternate Identifier:: http://dissertations.umi.com/northwestern:14508 and etdadmin_upload_638165

Description:: Additive manufacturing is a promising process that has the capability to build components with complex geometries for structural and biomedical applications. Due to the rapid and localized directional solidification of molten metallic alloys, unique phase transformations occur at the melt pool that can provide for components with greater strength and...
Subject:: Materials Science and Mechanical engineering
Creator:: Wolff, Sarah
Owner:: Scholarly Digital Publishing
Language:: en
Date Uploaded:: 02/12/2020
Date Created:: 2018-01-01
Resource Type:: Dissertation
Alternate Identifier:: http://dissertations.umi.com/northwestern:14448 and etdadmin_upload_626097

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