Search Results - "Livescu, V."

Structure/property (constitutive and spallation response) of additively manufactured 316L stainless steel by Gray, G.T., Livescu, V., Rigg, P.A., Trujillo, C.P., Cady, C.M., Chen, S.R., Carpenter, J.S., Lienert, T.J., Fensin, S.J.

“…For additive manufacturing (AM) of metallic materials, the certification and qualification paradigm needs to evolve as there is currently no broadly accepted…”
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Structural representation of additively manufactured 316L austenitic stainless steel by Bronkhorst, C.A., Mayeur, J.R., Livescu, V., Pokharel, R., Brown, D.W., Gray, G.T.

“…Three 316L stainless steel materials are studied and reported upon; wrought, as-built additively manufactured (AM), and heat-treated AM material. The AM…”
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Modeling of additive manufacturing processes for metals: Challenges and opportunities by Francois, M.M., Sun, A., King, W.E., Henson, N.J., Tourret, D., Bronkhorst, C.A., Carlson, N.N., Newman, C.K., Haut, T., Bakosi, J., Gibbs, J.W., Livescu, V., Vander Wiel, S.A., Clarke, A.J., Schraad, M.W., Blacker, T., Lim, H., Rodgers, T., Owen, S., Abdeljawad, F., Madison, J., Anderson, A.T., Fattebert, J-L., Ferencz, R.M., Hodge, N.E., Khairallah, S.A., Walton, O.

“…•This article focuses on reviewing modeling and simulation effort in metal additive manufacturing taking places at U.S. Department of Energy national…”
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Proton irradiation and characterization of additively manufactured 304L stainless steels by Eftink, B.P., Weaver, J.S., Valdez, J.A., Livescu, V., Chen, D., Wang, Y., Knapp, C., Mara, N.A., Maloy, S.A., Gray, G.T.

“…Irradiations were performed with 1.5 MeV protons to 0.6 dpa at 40–150 °C on additively manufactured (AM) 304L stainless steel and the changes in microstructure…”
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Modeling and simulation framework for dynamic strain localization in elasto-viscoplastic metallic materials subject to large deformations by Mourad, H.M., Bronkhorst, C.A., Livescu, V., Plohr, J.N., Cerreta, E.K.

“…This paper describes a theoretical and computational framework for the treatment of adiabatic shear band formation in rate-sensitive polycrystalline metallic…”
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Compact forced simple-shear sample for studying shear localization in materials by Gray, G.T., Vecchio, K.S., Livescu, V.

“…A new specimen geometry, the compact forced-simple-shear specimen (CFSS), has been developed as a means to achieve simple shear testing of materials over a…”
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Deformation twinning in explosively-driven tantalum by Livescu, V., Bingert, J.F., Mason, T.A.

“…Deformation twinning resulting from high explosive-driven shock and associated plasticity was investigated in high-purity b.c.c. tantalum. Post mortem…”
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Using In Situ Neutron Diffraction to Isolate Specific Features of Additively Manufactured Microstructures in 304L Stainless Steel and Identify Their Effects on Macroscopic Strength by Brown, D. W., Adams, D. P., Balogh, L., Carpenter, J. S., Clausen, B., Livescu, V., Martinez, R. M., Morrow, B. M., Palmer, T. A., Pokharel, R., Strantza, M., Vogel, S. C.

“…Additive manufacturing of metal components results in unique microstructures with, necessarily, mechanical properties that are distinct from conventionally…”
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In-Situ High-Energy X-ray Diffraction During a Linear Deposition of 308 Stainless Steel via Wire Arc Additive Manufacture by Brown, D. W., Losko, A., Carpenter, J. S., Clausen, B., Cooley, J. C., Livescu, V., Kenesei, P., Park, J.-S., Stockman, T. J., Strantza, M.

“…Adoption of metal additive manufacturing (AM) components in property-critical applications requires predictable performance of fabricated metal AM parts…”
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Effect of shock loading on the microstructure, mechanical properties and grain boundary characteristics of HT-9 ferritic/martensitic steels by Aydogan, E., Anderoglu, O., Maloy, S.A., Livescu, V., Gray, G.T., Perez-Bergquist, S., Williams, D.J.

“…The microstructural changes and mechanical response of an HT-9 sample shock loaded to a peak pressure of 11GPa have been investigated by TEM, XRD,…”
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Biaxial deformation in high purity aluminum by Livescu, V., Bingert, J.F., Liu, C., Lovato, M.L., Patterson, B.M.

“…The convergence of multiple characterization tools has been applied to investigate the relationship of microstructure on damage evolution in high purity…”
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The effects of equal channel angular extrusion on the mechanical and electrical properties of alumina dispersion-strengthened copper alloys by Need, R.F., Alexander, D.J., Field, R.D., Livescu, V., Papin, P., Swenson, C.A., Mutnick, D.B.

“…Two alloys of alumina dispersion-strengthened copper were subjected to 1-4 passes of equal channel angular extrusion (ECAE) by route BC. Microstructures before…”
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Structure/property (constitutive and dynamic strength/damage) characterization of additively manufactured 316L SS by Gray III, G.T., Livescu, V., Rigg, P.A., Trujillo, C.P., Cady, C.M., Chen, S.R., Carpenter, J.S., Lienert, T.J., Fensin, S.

“…For additive manufacturing (AM), the certification and qualification paradigm needs to evolve as there exists no “ASTM-type” additive manufacturing certified…”
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Influence of sweeping detonation-wave loading on shock hardening and damage evolution during spallation loading in tantalum by Hiermaier, S., Gray, G.T., Hull, L.M., Livescu, V., Faulkner, J.R., Briggs, M.E., Cerreta, E.K.

“…Widespread research over the past five decades has provided a wealth of experimental data and insight concerning the shock hardening, damage evolution, and the…”
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Measurement and modeling of room temperature co-deformation in WC–10 wt.% Co by Livescu, V., Clausen, B., Paggett, J.W., Krawitz, A.D., Drake, E.F., Bourke, M.A.M.

“…In situ neutron diffraction measurements were performed on a tungsten carbide (WC)–10 wt.% cobalt (Co) cemented carbide composite subjected to compressive…”
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Mesoscale polycrystal calculations of damage in spallation in metals by Soulard, Laurent, Tonks, D.L., Bingert, J., Livescu, V., Luo, S., Bronkhorst, C.

“…The goal of this project is to produce a damage model forspallation in metals informed by the polycrystalline grain structure at themesoscale. Earlier damage…”
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In situ loading response of WC–Ni: Origins of toughness by Paggett, J.W., Krawitz, A.D., Drake, E.F., Bourke, M.A.M., Livescu, V., Claussen, B., Brown, D.W.

“…The strain response of WC and Ni in WC–Ni cemented carbide composites (5, 10 and 20 wt.% Ni) was studied under uniaxial compressive load to −2000 MPa using…”
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Signatures of the unique microstructure of additively manufactured steel observed via diffraction by Pokharel, R., Balogh, L., Brown, D.W., Clausen, B., Gray, G.T., Livescu, V., Vogel, S.C., Takajo, S.

“…A series of measurements were designed to gain confidence in the interpretation of the peak breadth in diffraction patterns collected from additively…”
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Intraaneurysmal vorticity reduction subsequent to stenting by Livescu, V, Lieber, B B, Hopkins, L N, Wakhloo, A K

“…A study was conducted to determine the influence of the filament size on the intraaneurysmal flow dynamics in three stented side-wall aneurysm models in vitro…”
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Measurement and modeling of room temperature co-deformation in WC–10wt.% Co by Livescu, V., Clausen, B., Paggett, J.W., Krawitz, A.D., Drake, E.F., Bourke, M.A.M.

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