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Mechanics of Solids Theses and Dissertations

Theses and Dissertations for the Mechanics of Solids department.

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Items (41-60) out of 84 results

Identifying potential mild traumatic brain injury events through inertial sensor based kinematics and continuum mechanics based strain calculations

Description:
Mild Traumatic Brain Injuries (mTBI) resulting from mechanical trauma remain a significant global public health concern. These injuries are often triggered by violent head motions …
Year:
2024
Contributor:
Wan, Yang (creator)
Kesari, Haneesh (Advisor)
Guduru, Pradeep (Reader)
Henann, David (Reader)
Hoffman-Kim, Diane (Reader)
Brown University. Engineering: Mechanics of Solids (sponsor)
Genre:
theses
Subject:
Biomechanics
Mild Traumatic Brain Injury
motion tracking
Mechanics
Head--Wounds and injuries--Mathematical models
Collection:
Engineering
Mechanics of Solids
Theses and Dissertations
Full Record

Implementation and Application ofGurtin Strain Gradient Viscoplasticity

Description:
Length scale effects in plastic deformation, restrictions on plastic deformation, and realistic simulation of fracture behavior are critical for future engineering design and reliability. Plastic …
Year:
2011
Contributor:
Nath, Prateek (creator)
Curtin, William (Director)
Gao, H (Reader)
Kumar, S (Reader)
Brown University. ENGINEERING: Solid Mechanics (sponsor)
Genre:
theses
Subject:
Strain gradient plasticity
crystal plasticity
crack
length scale
plasticity
dislocation
discrete dislocation
coating
delamination
fracture
Plasticity
Composite materials--Delamination
Language:
English
Collection:
Engineering
Mechanics of Solids
Theses and Dissertations
Full Record

Insights into the Mechanical Functions of Glass Sponge Spicules Through a Characterization of Their Strength and Toughness Properties

Description:
Despite being composed of weak and brittle constituents, some structural biological materials, such as shell and bone, have relatively high strength and toughness. These materials …
Year:
2018
Contributor:
Monn, Michael Alexander (creator)
Kesari, Haneesh (Advisor)
Guduru, Pradeep (Reader)
Gao, Huajian (Reader)
Padture, Nitin (Reader)
Brown University. Engineering: Mechanics of Solids (sponsor)
Genre:
theses
Subject:
testing
Biomimicry
Fracture mechanics
Flexure--Testing
Spicule (Anatomy)
Hexactinellida
Venus's flower basket
Composite materials
Composite materials--Mechanical properties
Collection:
Engineering
Mechanics of Solids
Theses and Dissertations
Full Record

Integrated Simulation, Machine learning, and Experimental Approaches in Small-Scale Mechanical Characterization of Materials

Description:
The past decades have witnessed an increasing demand for characterizing mechanical properties of materials at small scales due to the miniaturization of devices. While tremendous …
Year:
2021
Contributor:
Liu, Xing (creator)
Gao, Huajian (Advisor)
Sheldon, Brian (Reader)
Padture, Nitin (Reader)
Brown University. Engineering: Mechanics of Solids (sponsor)
Genre:
theses
Subject:
Machine Learning
Micromechanics
Materials--Mechanical properties
Mechanics--computational mechanics
Collection:
Engineering
Mechanics of Solids
Theses and Dissertations
Full Record

Internal degrees of freedom in membranes and synchronization phenomena at low Reynolds number

Description:
The cell membrane is not a simple assembly of lipids and proteins. There are many internal degrees of freedom in a membrane, such as the …
Year:
2009
Contributor:
Jiang, Hongyuan (creator)
Powers, Thomas (director)
Tang, Jay (reader)
Shenoy, Vivek (reader)
Brown University. Division of Engineering. Mechanics of Solids (sponsor)
Genre:
theses
Subject:
vesicle shape
tilt order
lipid sorting
cilia and flagella
Cell membranes
Synchronization
Language:
English
Collection:
Engineering
Mechanics of Solids
Theses and Dissertations
Engineering
Theses and Dissertations
Full Record

Investigations of Surface Instabilities in Soft Materials and Phase Transformations in Additive Manufacturing

Description:
In this thesis I investigate two separate issues. The first was a class of surface instabilities in compressible soft materials. The second issue was the …
Year:
2019
Contributor:
Zhang, Qi (creator)
Blume, Janet (Advisor)
Kim, Kyung-Suk (Reader)
Oancea, Victor (Reader)
Brown University. Engineering: Mechanics of Solids (sponsor)
Genre:
theses
Subject:
surface instability
wrinkle
crease
Finite element method
bifurcation
Koiter's method
Compressible neo-Hookean bilayer
Blatz-Ko material
Additive Manufacturing
AM Process Simulation
Powder Bed Fabrication
Microstructure
Selective Laser Melting
metallurgical phase transformation
post-buckling analysis
Collection:
Engineering
Mechanics of Solids
Theses and Dissertations
Full Record

Large-deformation, viscoelastic constitutive modeling of elastomeric foams

Description:
Elastomeric foams are widely used for impact protection due to their ability to undergo large, reversible deformations and absorb large amounts of energy. A predictive …
Year:
2021
Contributor:
Li, Xiuqi (creator)
Henann, David (Advisor)
Franck, Christian (Reader)
Srivastava, Vikas (Reader)
Brown University. Engineering: Mechanics of Solids (sponsor)
Genre:
theses
Subject:
Viscoelastic materials
Constitutive Modeling
hyperelastic
elastomeric foams
Collection:
Engineering
Mechanics of Solids
Theses and Dissertations
Full Record

Large-scale Atomistic Simulations for Deformation and Fracture Mechanisms of Nanotwinned Metals

Description:
Nanotwinned metals have exhibited enhanced mechanical properties, including ultra-high strength, good ductility and remarkable fracture toughness. In this dissertation, we used large-scale atomistic simulations to …
Year:
2012
Contributor:
Li, Xiaoyan (creator)
Gao, Huajian (Director)
Kumar, Sharvan (Reader)
Bower, Allan (Reader)
Brown University. ENGINEERING: Solid Mechanics (sponsor)
Genre:
theses
Subject:
nanotwinned metals
atomistic simulation
deformation
fracture
twin boundary
dislocation
Language:
English
Collection:
Engineering
Mechanics of Solids
Theses and Dissertations
Full Record

Measuring and Modeling the Behavior of High-Strength Steels

Description:
The automobile industry drives a great deal of research towards understanding the mechanical behavior of high-strength steels. Two important behaviors exhibited by these materials are …
Year:
2016
Contributor:
Gerbig, Daniel Edward (creator)
Bower, Allan (Director)
Kim, Kyung-Suk (Reader)
Kumar, K. Sharvan (Reader)
Brown University. ENGINEERING: Mechanics of Solids (sponsor)
Genre:
theses
Subject:
finite element analysis
fracture
Finite element method
Digital image correlation
Plasticity
Steel--Fracture
Language:
English
Collection:
Engineering
Mechanics of Solids
Theses and Dissertations
Full Record

Mechanical Behavior of Silicon as Anode Material for Lithium-ion Batteries

Description:
Developing high energy density battery systems has emerged as a major challenge in recent years. Silicon is considered to be a promising anode material for …
Year:
2015
Contributor:
Chon, Michael J (creator)
Guduru, Pradeep (Director)
Chason, Eric (Reader)
Franck, Christian (Reader)
Sheldon, Brian (Reader)
Brown University. ENGINEERING: Mechanics of Solids (sponsor)
Genre:
theses
Subject:
Experimental Mechanics
Silicon Anode
Lithium-ion Batteries
Fracture Energy
Stress Measurements
Multi-beam Optical Sensing
Lithium ion batteries
Language:
English
Collection:
Engineering
Mechanics of Solids
Theses and Dissertations
Full Record

Mechanics and Molecular Mechanisms in Bio-Nano-Systems

Description:
How nanomaterials interact with biological systems is of fundamental interest to a wide range of applications, including drug delivery, therapeutics, bioimaging, nanotoxicity and regulation. In …
Year:
2022
Contributor:
Qian, Xuliang (creator)
Gao, Huajian (Advisor)
Kim, Kyung-Suk (Reader)
Yu, Jing (Reader)
Brown University. Engineering: Mechanics of Solids (sponsor)
Genre:
theses
Subject:
Biomechanics
Self-assembly
2D Materials
Peptides
Molecular dynamics
nanomaterials
cell-nanomaterial interaction
Membranes (Biology)
Coacervation
Liquid-phase exfoliation
Biosurfactants
Encapsulation
White Graphene
Collection:
Engineering
Mechanics of Solids
Theses and Dissertations
Full Record

Mechanics of 1D continua with applications in bio-inspired engineering

Description:
Stiff biological materials (SBMs), such as nacre and bone, are composites that display remarkable toughness enhancements over their primary constituents, which are brittle minerals. The …
Year:
2022
Contributor:
Fang, Wenqiang (creator)
Kesari, Haneesh (Advisor)
Bower, Allan (Reader)
Srivastava, Vikas (Reader)
Brown University. Engineering: Mechanics of Solids (sponsor)
Genre:
theses
Subject:
Solid Mechanics
Biomimicry
Spicule (Anatomy)
Composite materials
Friction
Buckling (Mechanics)--Mathematical models
Collection:
Engineering
Mechanics of Solids
Theses and Dissertations
Full Record

Mechanics of 2D Material Thin Films with Applications to Health and Nanofabrication Technologies

Description:
Abstract of Mechanics of 2D Material Thin Films with Applications to Health and Nanofabrication Technologies, by Dong Li, Ph.D., Brown University, May 2021. By virtue …
Year:
2021
Contributor:
Li, Dong (creator)
Gao, Huajian (Advisor)
Kim, Kyung-Suk (Reader)
Hurt, Robert (Reader)
Wei, Lei (Reader)
Brown University. Engineering: Mechanics of Solids (sponsor)
Genre:
theses
Subject:
2D Materials
Soil mechanics
Collection:
Engineering
Mechanics of Solids
Theses and Dissertations
Full Record

Mechanics of Cellular Packing of Flexible Nanomaterials

Description:
Packing of flexible nanomaterials within soft confinement such as vesicles and cell membranes is of fundamental interest to the understanding of a wide range of …
Year:
2019
Contributor:
Zou, Guijin (creator)
Kim, Kyung-Suk (Reader)
Hurt, Robert (Reader)
Gao, Huajian (Advisor)
Brown University. Engineering: Mechanics of Solids (sponsor)
Genre:
theses
Subject:
Biomechanics
Molecular dynamics--Computer simulation
Cell membranes
Anti-infective agents
cell-nanomaterial interaction
vesicle packing
Collection:
Engineering
Mechanics of Solids
Theses and Dissertations
Full Record

Mechanics of Elastic Contact and Adhesion of Rough Surfaces

Description:
Adhesion originated from van der Waals interactions becomes predominant over bulk properties of elastic solids at small length scales. A fundamental understanding of the mechanics …
Year:
2019
Contributor:
Deng, Weilin (creator)
Kesari, Haneesh (Advisor)
Guduru, Pradeep (Reader)
Srivastava, Vikas (Reader)
Brown University. Engineering: Mechanics of Solids (sponsor)
Genre:
theses
Subject:
Solid Mechanics
contact experiments
Mechanics
Surface roughness
Adhesion
Collection:
Engineering
Mechanics of Solids
Theses and Dissertations
Full Record

Mechanics of Molecular Bond Clusters between Elastic Media: Stochastic-elastic Coupling in Cell-matrix Adhesion

Description:
Cell-matrix adhesion depends on the collective behavior of a large number of molecular bonds. While the behavior of a single molecular bond is governed by …
Year:
2009
Contributor:
Qian, Jin (creator)
Gao, Huajian (director)
Freund, Lambert (reader)
Franck, Christian (reader)
Brown University. Division of Engineering. Mechanics of Solids (sponsor)
Genre:
theses
Subject:
Focal Adhesion
Receptor-ligand Bonds
Adhesion Lifetime
Adhesion Strength
Monte Carlo simulations
Cell adhesion
Language:
English
Collection:
Engineering
Mechanics of Solids
Theses and Dissertations
Engineering
Theses and Dissertations
Full Record

Mechanics of Size and Dimensionality Effects in Metal Plasticity

Description:
Both interfaces and spatial gradients in engineering structures exhibit distinct mechanical properties in contrast to their bulk counterparts. The demands of both the aerospace and …
Year:
2016
Contributor:
Szajewski, Benjamin A. (creator)
Curtin, William (Director)
Gao, Huajian (Reader)
Padture, Nitin (Reader)
Brown University. ENGINEERING: Mechanics of Solids (sponsor)
Genre:
theses
Subject:
Size Effects
Atomic Simulation
Line Tension
Language:
English
Collection:
Engineering
Mechanics of Solids
Theses and Dissertations
Full Record

Microcavitation as a neural cell damage mechanism in an in vitro model of blast traumatic brain injury

Description:
Blast traumatic brain injury is a serious type of injury in the armed forces and considered the signature injury of the wars in Iraq and …
Year:
2017
Contributor:
Estrada, Jonathan Bartholomew (creator)
Franck, Christian (Advisor)
Hoffman-Kim, Diane (Reader)
Henann, David (Reader)
Brown University. Engineering: Mechanics of Solids (sponsor)
Genre:
theses
Subject:
traumatic brain injury
Neurons
Cavitation
rheometry
Viscoelasticity
Confocal microscopy
primary injury
Collection:
Engineering
Mechanics of Solids
Theses and Dissertations
Full Record

Micromechanics of pseudo-single-asperity friction: effects of nanometer-scale roughness

Description:
Nanometer-scale roughness on a solid surface has significant effects on friction, since inter-surface forces operate predominantly within a nanometer-scale gap distance in frictional contact. This …
Year:
2008
Contributor:
Li, Qunyang (creator)
Kim, Kyung-Suk (director)
Guduru, Pradeep (reader)
Gao, Huajian (reader)
Brown University. Division of Engineering. Mechanics of Solids (sponsor)
Genre:
theses
Subject:
micromechanics of friction
nanometer-scale roughness
scale effects
AFM calibration
interface roughness
Language:
English
Collection:
Engineering
Mechanics of Solids
Theses and Dissertations
Engineering
Theses and Dissertations
Full Record

Micromechanics of solid-surface contact suspension and its role in friction

Description:
Solid-surface contact suspension is governed by asperity contact strength and multi-frequency surface roughness. Both of these two aspects are examined in this thesis for tribological …
Year:
2008
Contributor:
Xia, Shuman (creator)
Kim, Kyung-Suk (director)
Bower, Allan (reader)
Guduru, Pradeep (reader)
Brown University. Division of Engineering. Mechanics of Solids (sponsor)
Genre:
theses
Subject:
solid-surface contact suspension
contact strength
size effect
nanoindentation
metal matrix composites
friction laws
micro-slip
Metallic composites
Language:
English
Collection:
Engineering
Mechanics of Solids
Theses and Dissertations
Engineering
Theses and Dissertations
Full Record

Items (41-60) out of 84 results