Search Results - "Mrozek, Randy A"

Tough, Rapidly Swelling Thermoplastic Elastomer Hydrogels for Hemorrhage Control by Bain, Erich D, Long, Tyler R, Beyer, Frederick L, Savage, Alice M, Dadmun, Mark D, Martin, Halie, Lenhart, Joseph L, Mrozek, Randy A

“…We present a novel elastomer with an amphiphilic triblock/graft architecture, allowing it to rapidly swell in water and form a tough hydrogel. The design was…”
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Carbon nanofiber-filled conductive silicone elastomers as soft, dry bioelectronic interfaces by Slipher, Geoffrey A, Hairston, W David, Bradford, J Cortney, Bain, Erich D, Mrozek, Randy A

“…Soft and pliable conductive polymer composites hold promise for application as bioelectronic interfaces such as for electroencephalography (EEG). In clinical,…”
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The relationship between mechanical properties and ballistic penetration depth in a viscoelastic gel by Mrozek, Randy A., Leighliter, Brad, Gold, Christopher S., Beringer, Ian R., Yu, Jian H., VanLandingham, Mark R., Moy, Paul, Foster, Mark H., Lenhart, Joseph L.

“…The fundamental material response of a viscoelastic material when impacted by a ballistic projectile has important implication for the defense, law…”
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Pump Up the Jam: Granular Media as a Quasi‐Hydraulic Fluid for Independent Control Over Isometric and Isotonic Actuation by Bakarich, Shannon E., Miller, Rachel, Mrozek, Randy A., O'Neill, Maura R., Slipher, Geoffrey A., Shepherd, Robert F.

“…Elastomer‐granule composites have been used to switch between soft and stiff states by applying negative pressure differentials that cause the membrane to…”
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Effect of polymer solvent on the mechanical properties of entangled polymer gels: Coarse-grained molecular simulation by Sliozberg, Yelena R., Mrozek, Randy A., Schieber, Jay D., Kröger, Martin, Lenhart, Joseph L., Andzelm, Jan W.

“…Polymer gels are composed of a chemically or physically cross-linked polymer that is highly swollen with solvent. Two important limitations for the practical…”
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New Flexible Silicone-Based EEG Dry Sensor Material Compositions Exhibiting Improvements in Lifespan, Conductivity, and Reliability by Yu, Yi-Hsin, Chen, Shih-Hsun, Chang, Che-Lun, Lin, Chin-Teng, Hairston, W David, Mrozek, Randy A

“…This study investigates alternative material compositions for flexible silicone-based dry electroencephalography (EEG) electrodes to improve the performance…”
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Rheological Characterization of Next-Generation Ballistic Witness Materials for Body Armor Testing by Tao, Ran, Rice, Kirk D, Djakeu, Anicet S, Mrozek, Randy A, Cole, Shawn T, Freeney, Reygan M, Forster, Aaron M

“…Roma Plastilina No. 1 (RP1), an artist modeling clay that has been used as a ballistic clay, is essential for evaluation and certification in standards-based…”
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Phase behavior of SEBS triblock copolymer gels by Chantawansri, Tanya L., Duncan, Andrew J., Ilavsky, Jan, Stokes, Kristoffer K., Berg, Michael C., Mrozek, Randy A., Lenhart, Joseph L., Beyer, Frederick L., Andzelm, Jan W.

“…Dynamic density functional theory calculations were performed for thermoplastic elastomer gels composed of an ABA triblock copolymer immersed in a B‐attractive…”
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Stimuli‐responsive mechanical properties in polymer glasses: challenges and opportunities for defense applications by Dennis, Joseph M, Savage, Alice M, Mrozek, Randy A, Lenhart, Joseph L

“…The potential utility that responsive glasses provide in the areas of aeronautics, protection and unmanned systems is reviewed in this article. The article…”
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Temperature-insensitive silicone composites as ballistic witness materials: the impact of water content on the thermophysical properties by Tao, Ran, Zhang, Fan, Nguyen, Huong Giang, Bernstein, Philip, Forster, Amanda L., Mrozek, Randy A., Forster, Aaron M.

“…In this work, different formulations of a room-temperature silicone composite backing material (SCBM) composed of polydimethylsiloxane (PDMS), fumed silica and…”
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Effects of Finite Lengths of Chains on the Structural and Mechanical Properties of Polyethylene Fibers by Yeh, In-Chul, Balzano, Luigi, van der Werff, Harm, Mrozek, Randy A, Lenhart, Joseph L, Andzelm, Jan W

“…We investigated the effects of finite lengths of polymer chains on the structural and mechanical properties of polyethylene (PE) fibers with atomistic…”
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Compression response of a thermoplastic elastomer gel tissue surrogate over a range of strain-rates by Casem, Daniel T., Dwivedi, Ajmer K., Mrozek, Randy A., Lenhart, Joseph L.

“…The mechanical response of a thermoplastic elastomer synthetic ballistic gel is studied over a range of strain-rates. Experiments were conducted at room…”
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Mechanical properties of silicone based composites as a temperature insensitive ballistic backing material for quantifying back face deformation by Edwards, Tara D., Bain, Erich D., Cole, Shawn T., Freeney, Reygan M., Halls, Virginia A., Ivancik, Juliana, Lenhart, Joseph L., Napadensky, Eugene, Yu, Jian H., Zheng, James Q., Mrozek, Randy A.

“…•A replacement ballistic backing witness material for Roma Plastilina #1 (RP1).•The material does not require heating and exhibits minimal temperature…”
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Open pore, elastomeric scaffolds through frustrated particle collapse by Mrozek, Randy A., Gold, Christopher S., Leighliter, Brad, Sietins, Jennifer M., Lenhart, Joseph L.

“…This article describes a procedure for making open cell porous elastomeric polymer composites with pore volumes from 40 to 68 vol%, particle loadings up to…”
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Role of entanglements and bond scission in high strain-rate deformation of polymer gels by Sliozberg, Yelena R., Hoy, Robert S., Mrozek, Randy A., Lenhart, Joseph L., Andzelm, Jan W.

“…A key factor that limits the practical implementation of polymer gels is low gel toughness. Here, we present coarse-grained molecular dynamics simulations of…”
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A solid-state dielectric elastomer switch for soft logic by Chau, Nixon, Slipher, Geoffrey A., O'Brien, Benjamin M., Mrozek, Randy A., Anderson, Iain A.

“…In this paper, we describe a stretchable solid-state electronic switching material that operates at high voltage potentials, as well as a switch material…”
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Influence of solvent size on the mechanical properties and rheology of polydimethylsiloxane-based polymeric gels by Mrozek, Randy A., Cole, Phillip J., Otim, Kathryn J., Shull, Kenneth R., Lenhart, Joseph L.

“…Soft polymeric gels have utility in a broad range of medical, industrial, and military applications, which has led to an extensive research investment over the…”
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Rheological predictions of network systems swollen with entangled solvent by Katzarova, Maria, Andreev, Marat, Sliozberg, Yelena R., Mrozek, Randy A., Lenhart, Joseph L., Andzelm, Jan W., Schieber, Jay D.

“…The mechanical properties of a cross‐linked polydimethylsiloxane (PDMS) network swollen with nonreactive entangled PDMS solvent was previously studied…”
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Tunable mechanical behavior of synthetic organogels as biofidelic tissue simulants by Kalcioglu, Z. Ilke, Mrozek, Randy A, Mahmoodian, Roza, VanLandingham, Mark R, Lenhart, Joseph L, Van Vliet, Krystyn J

“…Abstract Solvent-swollen polymer gels can be utilized as mechanical simulants of biological tissues to evaluate protective systems and assess injury…”
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Highly conductive, melt processable polymer composites based on nickel and low melting eutectic metal by Mrozek, Randy A., Cole, Phillip J., Mondy, Lisa A., Rao, Rekha R., Bieg, Lothar F., Lenhart, Joseph L.

“…Highly conductive polymers are difficult to process utilizing standard polymer approaches. This report describes a polymer composite loaded with a eutectic…”
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