Limit your search
- Mechanical engineering[remove]64
- Materials Science10
- Mechanics6
- Civil engineering4
- Nanotechnology4
- more Subjects »
Search Constraints
Filtering by:
Type
Work
Remove constraint Type: Work
Subject
Mechanical engineering
Remove constraint Subject: Mechanical engineering
Number of results to display per page
Search Results
-
- Description:
- The staggered (or imbricated) lamellar ``brick-and-mortar" nanostructure of nacre endows nacre with strength and fracture toughness values exceeding by an order of magnitude those of the constituents, and inspires the advent of new robust biomimetic materials. While many deterministic studies clarified these advantageous features in the mean sense, a closed-form...
- Keyword:
- Nacre, Strength, Probability, Octet-truss, Architected Material, and Size Effect
- Subject:
- Mechanics, Mechanical engineering, and Civil engineering
- Creator:
- Luo, Wen
- 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:15081 and etdadmin_upload_741756
-
- Description:
- The dissertation systematically delineates the mechanically-guided deterministic assembly of three-dimensional (3D) mesostructures by compressive buckling, covering topics from mechanics concepts, design and analysis, fabrication techniques, to application opportunities. The development of approaches to form complex 3D functional mesostructures in advanced materials is a topic of broad interest, thanks to the...
- Subject:
- Materials Science, Mechanical engineering, and Civil engineering
- Creator:
- Luan, Haiwen
- 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:14682 and etdadmin_upload_663249
-
- Description:
- Engineering design is a systematic process of identifying needs and their translation into functional systems. This is a cyclic process that alternates between the acquisition of data and the synthesis of said data to inform design decisions. Conventionally, data from physical experiments are used to explore the efficacy of alternative...
- Keyword:
- Uncertainty quantification, Design, Decision making, Machine learning, Data acquisition, and Data synthesis
- Subject:
- Design and Mechanical engineering
- Creator:
- van Beek, Anton
- Owner:
- Scholarly Digital Publishing
- Language:
- en
- Date Uploaded:
- 02/02/2022
- Date Created:
- 2021-01-01
- Resource Type:
- Dissertation
- Alternate Identifier:
- etdadmin_upload_861337 and http://dissertations.umi.com/northwestern:15848
-
- Description:
- A framework is developed that models point defect diffusion and interaction with pre-existing microstructures during irradiation, including defect-defect interactions and defect sinks. This framework uses a modified diffusion potential that includes not only defect concentration, but also intrinsic stresses from the pre-existing microstructure. Various microstructures are studied in {Fe} by...
- Keyword:
- Grain boundaries, Voids, Point defects, Radiation, Crack tip, and Triple junctions
- Subject:
- Materials Science, Mechanical engineering, and Nuclear engineering
- Creator:
- Zarnas, Patrick
- 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:15639 and etdadmin_upload_831637
-
- Description:
- The advent of metamaterials—hierarchical structures that manifest properties beyond those found in nature through geometry rather than material composition—inspired new possibilities and research in many fields. In mechanics, periodic metamaterials exhibit behaviors ranging from unprecedented compressibility to extreme stiffness. Numerous geometric classes of metamaterials with these properties have been discovered,...
- Keyword:
- Design representation, Deep learning, Design synthesis, Multiscale topology optimization, Data-driven design, and Data acquisition
- Subject:
- Design, Mechanical engineering, and Computer science
- Creator:
- Chan, Yu-Chin
- Owner:
- Scholarly Digital Publishing
- Language:
- en
- Date Uploaded:
- 09/22/2022
- Date Created:
- 2022-01-01
- Resource Type:
- Dissertation
- Alternate Identifier:
- http://dissertations.umi.com/northwestern:16251 and etdadmin_upload_928694
-
- Description:
- Bio-integrated electronics with advanced monitoring capabilities have garnered considerable interest as a means of expanding patient care beyond traditional hospital and clinic settings. These mechanically soft microsystems, many of which are bioresorbable and wireless, have the potential to replace bulky, rigid, and wired medical technologies by matching or exceeding their...
- Keyword:
- Mechanics, Skin-Integrated Electronics, Injectable Electronics, Bioresorbable Pacemakers, Engineering Modeling, and Electromagnetics
- Subject:
- Biomedical engineering, Mechanical engineering, and Electromagnetics
- Creator:
- Avila, Raudel
- Owner:
- Scholarly Digital Publishing
- Language:
- en
- Date Uploaded:
- 05/31/2023
- Date Created:
- 2023-01-01
- Resource Type:
- Dissertation
- Alternate Identifier:
- http://dissertations.umi.com/northwestern:16445 and etdadmin_upload_970258
-
- Description:
- Biological experiments involving the manipulation and analysis of cells have always strived towards greater precision and resolution. Recent advances in micro and nanotechnology have improved the precision of manipulation and the resolution of analysis down to a single cell, thus opening new avenues of investigation. These advances have added a...
- Keyword:
- Intracellular Delivery, Microfluidics, and Localized Electroporation
- Subject:
- Bioengineering, Mechanical engineering, and Biophysics
- Creator:
- Mukherjee, Prithvijit
- 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:15955 and etdadmin_upload_882743
-
- Description:
- Over the last several decades, market-driven needs created a vast assortment of products with micron-sized features. To achieve the necessary levels of precision and accuracy, a synergistic approach was undertaken, where both material addition and subtraction was employed in the creation of the desired parts. However, currently employed micromanufacturing processes...
- Keyword:
- self-assembly, electrophoretically-guided micro additive manufacturing, electrophoretic deposition, dielectrophoresis, and process control
- Subject:
- Mechanical engineering
- Creator:
- Pritchet, David
- Owner:
- Scholarly Digital Publishing
- Language:
- en
- Date Uploaded:
- 01/21/2021
- Date Created:
- 2020-01-01
- Resource Type:
- Dissertation
- Alternate Identifier:
- etdadmin_upload_720880 and http://dissertations.umi.com/northwestern:15023
-
- Description:
- An extensive set of functional electronic properties depends on the electronic structure. These properties are directly connected to the reciprocal-space representation of electronic structure. However, there is a complementary, real-space perspective that is described by combinations of atomic orbitals. Atomic orbitals are the components of electronic structures, analogous to how...
- Subject:
- Materials Science and Mechanical engineering
- Creator:
- Dylla, Maxwell Thomas
- Owner:
- Scholarly Digital Publishing
- Language:
- en
- Date Uploaded:
- 02/01/2021
- Date Created:
- 2019-01-01
- Resource Type:
- Dissertation
- Alternate Identifier:
- http://dissertations.umi.com/northwestern:15203 and etdadmin_upload_758137
-
- Description:
- Modeling the mechanical performance of metal produced with additive manufacturing (AM) has proven to be a challenging task. In the as-built state, these materials have been shown to exhibit strong heterogeneity and anisotropy. Even after post-processing, such as heat treatment or hot isostatic pressing and depending on the alloy, some...
- Keyword:
- Simulations, Additive manufacturing, Mechanical performance, and Solid mechanics
- Subject:
- Mechanics, Materials Science, and Mechanical engineering
- Creator:
- Kafka, Orion Landauer
- Owner:
- Scholarly Digital Publishing
- Language:
- en
- Date Uploaded:
- 04/28/2020
- Date Created:
- 2019-01-01
- Resource Type:
- Dissertation
- Alternate Identifier:
- http://dissertations.umi.com/northwestern:14952 and etdadmin_upload_708678
-
- Description:
- Proteins and many other systems are often conceptualized as networks to access analysis methods from the field of network science. Several approaches use molecular dynamics (MD) simulations of proteins to construct networks using correlational statistics. However, in the field of network science, a well-established approach for network construction is solving...
- Keyword:
- Network inference, Siglec-8, FimH, Molecular dynamics simulations, and Protein dynamics
- Subject:
- Mechanical engineering and Biophysics
- Creator:
- Liu, Jenny Yongjia
- Owner:
- Scholarly Digital Publishing
- Language:
- en
- Date Uploaded:
- 10/06/2021
- Date Created:
- 2021-01-01
- Resource Type:
- Dissertation
- Alternate Identifier:
- http://dissertations.umi.com/northwestern:15693 and etdadmin_upload_841212
-
- Description:
- With the increasing demand for customized products, rapid prototyping, and small-batch production, incremental sheet forming (ISF) is gaining ever-growing attention. The potential of ISF to produce parts without the use of geometry-specific dies has revolutionized the sheet forming processes. Despite its promising characteristics, ISF thus far has not been extensively...
- Subject:
- Mechanical engineering
- Creator:
- Jiang, Zilin
- Owner:
- Scholarly Digital Publishing
- Language:
- en
- Date Uploaded:
- 06/22/2022
- Date Created:
- 2022-01-01
- Resource Type:
- Dissertation
- Alternate Identifier:
- etdadmin_upload_901916 and http://dissertations.umi.com/northwestern:16058
-
- Description:
- Modern design practices rely more and more on computer simulations due to their low cost compared with physical experiments. However, it is still an elusive task to fully unleash the advantages of the simulation models while mitigating their disadvantages for designing complex engineering systems. In simulation-based design, computer simulation models...
- Keyword:
- Design optimization, Bayesian optimization, Uncertainty quantification, Simulation-based design, Model calibration, and Multidisciplinary design
- Subject:
- Statistics, Design, and Mechanical engineering
- Creator:
- Tao, Siyu
- Owner:
- Scholarly Digital Publishing
- Language:
- en
- Date Uploaded:
- 02/01/2021
- Date Created:
- 2020-01-01
- Resource Type:
- Dissertation
- Alternate Identifier:
- etdadmin_upload_773686 and http://dissertations.umi.com/northwestern:15350
-
- Description:
- Additive manufacturing (AM) processes have advanced rapidly over the last three decades to the point where they have the potential to fundamentally change the way complex parts will be designed and fabricated in the future. Additive methods leverage the ability to join metal particles or molten droplets in a layer-by-layer...
- Keyword:
- Hydrodynamic, Thermal, Laser Induced Forward Transfer, and Aperture
- Subject:
- Mechanics, Mechanical engineering, and Civil engineering
- Creator:
- Zhang, Li
- Owner:
- Scholarly Digital Publishing
- Language:
- en
- Date Uploaded:
- 02/12/2020
- Date Created:
- 2018-01-01
- Resource Type:
- Dissertation
- Alternate Identifier:
- etdadmin_upload_618185 and http://dissertations.umi.com/northwestern:14414
-
- 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:
- The successful isolation of graphene marked the advent of two-dimensional (2D) materials. Their atomically thin structures enable unprecedented electrical, optical, and mechanical properties, which have triggered significant research interests in the past decade. For instance, they are promising candidates for the fabrication of flexible electronics, biological sensors, battery electrodes, and...
- Keyword:
- Toughening, Transmission Electron Microscopy, Molecular Dynamics Simulations, In Situ Fracture Test, Polymer, and Two-dimensional Materials
- Subject:
- Materials Science, Mechanical engineering, and Engineering
- Creator:
- Zhang, Xu
- 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:15978 and etdadmin_upload_889878
-
- Description:
- ABSTRACTUnderstanding Micro-macroscopic Phenomena of Tribological Fluids and Surfaces Mechanical power and motion are transmitted through interfaces under contact and relative motion. Friction is inevitable, which can lead to higher operating and energy costs, and severe frictional rubbing can result in material damage and cessation of motion. A deep understanding of...
- Subject:
- Mechanical engineering
- Creator:
- Pickens III, David Bruce
- Owner:
- Scholarly Digital Publishing
- Language:
- en
- Date Uploaded:
- 02/01/2021
- Date Created:
- 2020-01-01
- Resource Type:
- Dissertation
- Alternate Identifier:
- http://dissertations.umi.com/northwestern:15405 and etdadmin_upload_780873
-
- Description:
- Metal Additive manufacturing (AM) processes build 3D objects by heating and consolidating material in a point-by-point manner. Unlike traditional manufacturing methods, AM allows the material properties of each point in the build to vary by controlling process conditions locally. The process parameters can be considered as inputs to the AM...
- Keyword:
- Metrics, Toolpaths, Additive manufacturing, Design space, Scan strategy, and Graph theory
- Subject:
- Mechanical engineering
- Creator:
- Cheng, Puikei
- Owner:
- Scholarly Digital Publishing
- Language:
- en
- Date Uploaded:
- 04/28/2020
- Date Created:
- 2020-01-01
- Resource Type:
- Dissertation
- Alternate Identifier:
- etdadmin_upload_719256 and http://dissertations.umi.com/northwestern:15008
-
Across Scales: An Examination of the Impacts of Turbulence and Mobile Bedforms on Hyporheic Exchange
- Description:
- In this dissertation, advances are made in understanding both the way hyporheic exchange impacts riverbed morphodynamics and the physical processes that lead to turbulent momentum transfer in the first few grains of riverbed sediments. In terms of physical advances in understanding the interplay between bedform movement and hyporheic exchange, we...
- Keyword:
- Hyporheic Exchange, LES, Flume Experiments, Turbulence, and Bedforms
- Subject:
- Environmental engineering, Mechanical engineering, and Civil engineering
- Creator:
- Dallmann, Jonathan
- Owner:
- Scholarly Digital Publishing
- Language:
- en
- Date Uploaded:
- 06/28/2021
- Date Created:
- 2021-01-01
- Resource Type:
- Dissertation
- Alternate Identifier:
- etdadmin_upload_819194 and http://dissertations.umi.com/northwestern:15572
-
- Description:
- Robots can be capable partners when interacting with humans, but their value is largely dependent on how information is communicated in that partnership. In physical human-robot interaction, information is communicated via motion---configurations, velocities, forces, and torques. The autonomy interprets these implicit signals using metrics, which ultimately drive the the autonomy....
- Subject:
- Robotics and Mechanical engineering
- Creator:
- Fitzsimons, Kathleen
- Owner:
- Scholarly Digital Publishing
- Language:
- en
- Date Uploaded:
- 02/01/2021
- Date Created:
- 2020-01-01
- Resource Type:
- Dissertation
- Alternate Identifier:
- etdadmin_upload_781114 and http://dissertations.umi.com/northwestern:15423
- « Previous
- Next »
- 1
- 2
- 3
- 4