Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 20 of 171 for “"Honeycomb"”.
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The evolution of honeycomb
<p>The regular cells of honeycomb nests have fascinated scholars and mathematicians for millennia. In 36BC, the Roman scholar Marcus Terentius Varro first proposed the “honeycomb conjecture,” in which he postulated that bees build their comb using hexagons because it is the shape that requires the …
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Applications for paper honeycomb technology
Paper Honeycomb technology was invented as another means of constructing lightweight, durable, and affordable products that could serve both home and industry. Since the technology became popular after appearing in its first market, it has taken on one market after another, even while identifying …
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Failure of sandwich honeycomb panels in bending
… a predominant failure mechanism for thin gauge honeycomb sandwich panels loaded in bending or compression. Over the past 60 years, considerable work has been devoted to understanding wrinkling and trying to predict failure loads in damaged and undamaged panels accurately. Existing wrinkling …
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Thermal characterization of honeycomb core sandwich structures
Honeycomb core sandwich structures are an integral part of many of today's aerospace structures. When subjected to high-speed flight, thermal loading can induce significant stresses. The need for thermal properties to perform thermal stress analyses in these structures is the motivation behind this …
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Non-Abelian Anyons in the Kitaev Honeycomb Model
… Berry phase of non-Abelian anyons in the Kitaev honeycomb lattice model. It is also a guide for experimental the realizations of the actual brading process. We give an introduction to the theory of non-Abelian anyons, briefly discussing in what kind of systems they are realized, and their …
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Manufacturing and Evaluation of Kenaf/Polypropylene Honeycomb Cores
… on the development and mechanical performance of honeycomb cores manufactured from very thin extruded kenaf/polypropylene sheets is presented here. The manufacturing process involves production of flat composite sheets using an extruder, thermoforming the flat sheets into half-hexagonal …
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Compressive response of notched composite-honeycomb sandwich panels
Experimental and numerical work was conducted to understand better the compressive response of notched composite sandwich panels. The quasi-static uniaxial compressive response of notched (circular through hole) E-glass/epoxy- NomexTM sandwich panels were studied experimentally. Two different woven …
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Buckling and growth of disbonds in honeycomb sandwich structure
The response of honeycomb sandwich structure to disbond damage, in a compressive stress field, has been assessed. Two types of disbond were considered; those extending through the full width of a panel (through-width) and those enclosed within the panel boundaries (embedded). For each type of …
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The response of honeycomb sandwich panels to blast loads
… of circular sandwich panels with aluminium honeycomb cores subjected to air blast loading. It focuses on the effect of varying core thickness, plate thickness and panel configuration. In this study, aluminium honeycomb core is sandwiched between mild steel face plates. Quasi-static tensile …
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Failure Prediction of Honeycomb Panel Joints using Finite Element Analysis
Spacecraft structures rely on honeycomb panels to provide a light weight means to support the vehicle. Honeycomb panels can carry significant load but are most vulnerable to structural failure at their joints where panels connect. This research shows that predicting sandwich panel joint capability …
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A complex of interactions in rare-earth based quantum honeycomb magnets
… theoretically by models such as the Kitaev honeycomb model, experimentally verifying these states in real materials remains a significant challenge in condensed matter physics. This dissertation investigates the magnetic interactions in rare-earth honeycomb materials as potential candidates …
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Damage resistance and damage tolerance of thin composite facesheet honeycomb panels
Thesis (M.S.)--Massachusetts Institute of Technology, Dept. of Aeronautics and Astronautics, 1989.
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Crash behavior of box columns filled with aluminum honeycomb or foam
Thesis (M.S.)--Massachusetts Institute of Technology, Dept. of Mechanical Engineering, 1997.
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Response mechanisms in the impact of graphite/epoxy honeycomb sandwich panels
Thesis (M.S.)--Massachusetts Institute of Technology, Dept. of Aeronautics and Astronautics, 1991.
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