The cluster expansion formalism for alloys is used to investigate phenomena in several refractory alloys: Co3W (superalloy), NbTiVZr, HfNbTaTiZr, and AlHfNbTaTiZr (high entropy alloys). Density …
The surface morphologies of different soft material systems comprise various ruga phases (wrinkle, crease, fold or ridge). In the past a few decades, despite that …
High-density polyethylene (HDPE) is a widely used thermoplastic polymer with application as the material for pipeline transport systems. Due to the longterm, low-stress conditions of …
We discover a new, curvature-localizing, subcritical buckling mode that produces a shallow-kink configuration in multi-layer graphene. Our density functional theory (DFT) analysis reveals the mode …
Mechanical integrity of solid electrolyte interphase (SEI) plays an important role in determining the long-term reliability and performance of advanced high capacity anode materials. Failure …
Predicting crack patterns and toughness of structural biomaterials (SBs) is a complex problem due to their complicated microstructures. Most SBs are heterogeneous in nature and …
A generalized thermoelastic model for adhesion was developed to elucidate the mechanism of dissipation within the viscoelastic bulk of a hydrogel. Results show that in …
An experimental study of electric field induced surface diffusion is presented. A FEM analysis and a stability analysis of conducting surfaces subjected to a normal …
Inertial microcavitation rheometry (IMR) is an effective method for mechanical characterization of soft materials at high strain rates. In IMR, the dynamics of an isolated …
Studies of two nanoscale systems with important engineering applications, Al-Si nanocomposites and Au nanoasperities, are investigated using molecular dynamics. The first system is studied in …
Over the past decade, nanotwinned metals have attracted considerable attention due to their exceptional mechanical properties, such as ultra-high strength, good tensile ductility, high fracture …
In this thesis, we studied the dynamic toughening mechanisms of a hierarchically nanostructured copolymer, polyurea. We first quantitively measured the dynamic fracture toughness as well …
This thesis presents experimental measurements and modeling of multi-scale collective behaviors characteristics of hierarchical interfaces in lithium-ion batteries (LIBs) during cycling. Two interfacial mechanisms are …
Cardiac patch therapies have become a promising treatment to lower the risk of heart failure after myocardial infarct to restore heart function. Engineered tissue scaffolds …
The electronics industry drives a great deal of research towards inventing methods for creating smaller devices. In order for the current trend of the diminishing …
The mechanics of biological contact are important in many natural processes, motivating extensive study of biological adhesive systems as well as attempts at biomimickry through …
Granular materials are mixtures of discrete, macroscopic particles. They are ubiquitous in nature as well as in everyday life -- in forms such as sand, …
In most engineering metal alloys, the overall plastic resistance is contributed by two or more strengthening mechanisms operating simultaneously. Two major sources of strengthening in …
Over the past decades, the mechanical behavior of biological material has had a profound effect on research into human tissues and the development of medical …
Abstract of "Deformation Mechanisms in Magnesium Alloys at Elevated Temperature" by David E. Cipoletti, Ph.D., Brown University, May 2011The goals of this dissertation were to …
