Search Results - "Guduru, P. R."

Real-time measurement of stress and damage evolution during initial lithiation of crystalline silicon by Chon, M J, Sethuraman, V A, McCormick, A, Srinivasan, V, Guduru, P R

“…Crystalline to amorphous phase transformation during initial lithiation in (100) Si wafers is studied in an electrochemical cell with Li metal as the counter…”
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Mechanics of compressive stress evolution during thin film growth by Guduru, P.R., Chason, E., Freund, L.B.

“…Based on recent in situ measurements, Chason et al. (2002) proposed that the evolution of compressive stress during thin film growth by vapor deposition is due…”
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Dynamic shear bands: an investigation using high speed optical and infrared diagnostics by Guduru, P.R, Rosakis, A.J, Ravichandran, G

“…This paper presents an experimental investigation of the initiation and propagation characteristics of dynamic shear bands in C300 maraging steel. Pre-fatigued…”
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A scanning acoustic microscope based on picosecond ultrasonics by Che, S., Guduru, P.R., Nurmikko, A.V., Maris, H.J.

“…We report on the development of a new type of scanning acoustic microscope. We use a femtosecond light pulse to generate a short sound pulse, and then focus…”
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Three dimensional cohesive-element analysis and experiments of dynamic fracture in C300 steel by Pandolfi, A., Guduru, P.R., Ortiz, M., Rosakis, A.J.

“…The dynamic drop-weight test is taken as a convenient basis for assessing the fidelity and predictive ability of cohesive models of fracture in applications…”
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Real-time stress measurements in lithium-ion battery negative-electrodes by Sethuraman, V.A., Van Winkle, N., Abraham, D.P., Bower, A.F., Guduru, P.R.

“…[Display omitted] ► Real-time stress evolution in a practical lithium-ion electrode is reported for the first time. ► Upon electrolyte addition, the electrode…”
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Shell buckling of individual multiwalled carbon nanotubes using nanoindentation by Waters, J. F., Guduru, P. R., Jouzi, M., Xu, J. M., Hanlon, T., Suresh, S.

“…Although the mechanical behavior of carbon nanotubes has been studied extensively in recent years, very few experimental results exist on the shell buckling of…”
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Adhesion and sliding response of a biologically inspired fibrillar surface: experimental observations by Yao, H, Rocca, G. Della, Guduru, P.R, Gao, H

“…Inspired by the adhesion mechanisms of several animal species such as geckos, beetles and flies, several efforts in designing and fabricating surface…”
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Detachment of a rigid solid from an elastic wavy surface: Theory by Guduru, P.R.

“…The mechanics of detachment between a wavy elastic half space and a rigid solid is considered. Solutions for the axisymmetric problem of a rigid sphere and the…”
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Buckling instabilities in multiwalled carbon nanotubes under uniaxial compression by Waters, J. F., Riester, L., Jouzi, M., Guduru, P. R., Xu, J. M.

“…We report experimental observations of shell buckling instabilities in freestanding, vertically aligned multiwalled carbon nanotubes subjected to uniaxial…”
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A finite strain model of stress, diffusion, plastic flow, and electrochemical reactions in a lithium-ion half-cell by Bower, A.F., Guduru, P.R., Sethuraman, V.A.

“…We formulate the continuum field equations and constitutive equations that govern deformation, stress, and electric current flow in a Li-ion half-cell. The…”
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The dynamics of multiple neck formation and fragmentation in high rate extension of ductile materials by Guduru, P.R., Freund, L.B.

“…Dynamic necking bifurcation in rapidly extending cylindrical rods is investigated. It has been found that both short wavelength and long wavelength…”
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Shell Buckling of Imperfect Multiwalled Carbon Nanotubes—Experiments and Analysis by Guduru, P. R., Xia, Z.

“…Experiments were conducted in which multiwalled carbon nanotubes were subjected to uniaxial compression and shell-buckling loads were measured. A comparison…”
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In situ measurement of biaxial modulus of Si anode for Li-ion batteries by Sethuraman, V.A., Chon, M.J., Shimshak, M., Van Winkle, N., Guduru, P.R.

“…We report in situ measurement of biaxial moduli of a Si thin-film electrode as a function of its lithium concentration. During lithiation, biaxial compressive…”
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Detachment of a rigid solid from an elastic wavy surface: Experiments by Guduru, P.R., Bull, C.

“…The mechanics of detachment of a rigid solid from an elastic wavy surface has been analyzed in a recent article, in which the axisymmetric case of a sphere and…”
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In Situ Measurement of Phase Boundary Kinetics during Initial Lithiation of Crystalline Silicon through Picosecond Ultrasonics by Rezazadeh-Kalehbasti, S., Liu, L. W., Maris, H. J., Guduru, P. R.

“…Studying the kinetics of phase transformation and phase boundary propagation during initial lithiation of silicon electrodes in lithium ion batteries is…”
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Mechanics of axisymmetric wavy surface adhesion: JKR–DMT transition solution by Waters, J.F., Lee, S., Guduru, P.R.

“…Recent work on the mechanics of detachment of a rigid sphere from an elastic axisymmetric wavy surface in the presence of JKR adhesion has shown that the…”
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Dynamic full field measurements of crack tip temperatures by Guduru, P.R, Zehnder, A.T, Rosakis, A.J, Ravichandran, G

“…This paper presents a detailed investigation of the evolution of temperature field at the tip of a stationary crack subjected to dynamic loading in two…”
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The Influence of a Surface Coating on the High-rate Fragmentation of a Ductile Material by Guduru, P R, Bharathi, M S, Freund, L B

“…A bifurcation analysis of a layered ductile structural element undergoing homogeneous, high-rate extension is presented. Formation of multiple strain…”
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Electric field induced surface diffusion and micro/nano-scale island growth by Gill, V., Guduru, P.R., Sheldon, B.W.

“…An experimental study of electric field induced surface diffusion is presented. A stability analysis of conductive surfaces subjected to a normal uniform…”
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