Advanced Engineering Materials

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  1. Thin and Flexible Polymer Photonic Sensor Foils for Monitoring Composite Structures

    Jeroen Missinne, Nuria Teigell Benéitez, Alfredo Lamberti, Gabriele Chiesura, Geert Luyckx, Marie-Aline Mattelin, Wim Van Paepegem and Geert Van Steenberge

    Version of Record online: 22 FEB 2018 | DOI: 10.1002/adem.201701127

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    Thin and flexible photonic sensor foils allow multi-axial strain sensing of composites by multiplexing a multitude of Bragg grating sensors. Those foils can be made very thin (down to 50 μm) making them suitable for embedding. Owing to their low Young's modulus and flexibility, polymer sensor foils can be bent to small curvature radii and withstand large elongations.

  2. Irradiation Enhances Strength and Deformability of Nano-Architected Metallic Glass

    Rachel L. Thompson, Yongqiang Wang and Julia R. Greer

    Version of Record online: 22 FEB 2018 | DOI: 10.1002/adem.201701055

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    In situ uniaxial compression experiments of as-fabricated and irradiated nano-architected metallic glass reveal that irradiation increases yield strength and enhances deformability. This figure shows the typical compressive stress–strain response of as-fabricated and irradiated nano-architected metallic glass (nanolattice) samples and typical images of such samples after compression. The failed layers in the as-fabricated nanolattice exhibits catastrophic destruction while those in the irradiated nanolattice appear to have undergone more gradual layer-by-layer collapse.

  3. Mechanical Properties and Damage Constitutive Model of High Water Material at Different Loading Rates

    Xiaolong Li and Changwu Liu

    Version of Record online: 22 FEB 2018 | DOI: 10.1002/adem.201701098

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    The mechanical properties of high water material with different water to cement ratios at different loading rates are studied, that is, the peak strength, elastic modulus, mass loss rate, and failure mode of specimens are obtained along with the change of loading rates. Though these mechanical properties, the damage constitutive model is established.

  4. SHS Synthesis and SPS Densification of Nanometric Tungsten

    Sarah Dine, Elodie Bernard, Nathalie Herlin Boime, Christian Grisolia, David Tingaud and Dominique Vrel

    Version of Record online: 21 FEB 2018 | DOI: 10.1002/adem.201701138

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    After Self-propagating High-temperature Synthesis using the WO3 + 3 Mg [RIGHTWARDS ARROW]W + 3 MgO reaction (a), platelet-like powders with at least one dimension in the nanometric range are obtained (b). These powders are then sintered using Spark Plasma Sintering (c), resulting in a dense sample presenting nanotructured grains (d).

  5. Microstructure and Mechanical Properties of Inconel718–NiCrAlY Composites Prepared by Laser Engineered Net Shaping

    Guohui Zhang, Shuai Yan, Fangyong Niu, Guangyi Ma, Dongjiang Wu and Dongming Guo

    Version of Record online: 21 FEB 2018 | DOI: 10.1002/adem.201701043

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    Different ratios of Inconel718–NiCrAlY composites are prepared by Laser engineered net shaping. With NiCrAlY content rising, NiAl precipitates, and changes from intergranular precipitation to intragranular precipitation. Solutions strengthening and precipitation strengthening contributes to early sharp increase and latter slight increase of microhardness, respectively. Wear loss drops maximum 15.66% with the increase of NiCrAlY content, and the wear mechanisms change.

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