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 68 for “"compression strength"”.
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Prediction modelling of pallet overhang on box compression strength
Accurate prediction of box compression strength (BCT) loss resulting from pallet overhang is critical for maintaining the integrity of corrugated packaging in global logistics. This study presents an expanded empirical analysis and predictive modelling framework to quantify the impact of pallet …
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Effect of Pallet Deckboard Stiffness and Unit Load Factors on Corrugated Box Compression Strength
… and produced a nonlinear reduction in box strength. Small boxes were more susceptible to gaps than larger boxes. Moving the gap closer to the corner increased its effect while increasing the number of gaps did not increase the effect. A modification to the McKee equation was produced that …
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An experimental/analytical investigation of combined shear/end loaded compression strength testing of unidirectional composites
… Technology Research Institute (IITRI) composite compression test method is probably the most widely accepted as producing accurate results. Difficulties associated with the application of this method, however, have fueled continued research into alternate methods. In this study, the Wyoming …
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The Effect of the Stiffness of Unit Load Components on Pallet Deflection and Box Compression Strength
… which causes the redistribution of the vertical compression stresses on the pallet towards the support. As a result, the deflection of the pallet can decrease and the load capacity of the pallet can increase significantly. The second chapter of this paper investigates the effect of package …
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The Effect of Pallet Top Deck Stiffness on the Compression Strength of Asymmetrically Supported Corrugated Boxes
… support could significantly affect the strength of the corrugated boxes, and it depends on the top deck stiffness of the pallet. This study is aimed at investigating how the variations of pallet top deck stiffness and the resulting asymmetric support, affects corrugated box compression …
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Relationship between the ECT-strength of corrugated board and the compression strength of liner and fluting medium papers
Please read the abstract in the dissertation. Copyright
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Evaluation of the performance of corrugated shipping containers : virgin versus recycled boards
The compression strength and creep responses of corrugated fibreboard boxes after exposure to high and cyclic relative humidity conditions were studied and compared between boxes made from virgin and recycled liners and mediums which had the same ring crush values. The effect of moisture absorption …
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Delamination initiation in postbuckled dropped-ply laminates
The compression strength of dropped-ply, graphite-epoxy laminated plates for the delamination mode of failure is studied by analysis and corroborated with experiments. The nonlinear response of the test specimens is modeled by a geometrically nonlinear finite element analysis. The methodology for …
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Effects of reinforcement materials and matrix particle sizes on mechanical properties and wear of recycled aluminum chips
… to characterize its bulk properties of the compression strength. Results showed that the mix of 25 and 100 μm is the best compression strength. Then, two groups were selected to study the effect of mixture particles according to the size of particles, 25 +100 μm and 25 +63 μm. Higher value …
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Compression of thick laminated composite beams with initial impact-like damage
While the study of compression after impact of laminated composites has been under consideration for many years. the complexity of the damage initiated by low velocity impact has not lent itself to simple predictive models for compression strength. The damage modes due to non-penetrating. low …
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Effects of layer waviness on compression-loaded thermoplastic composite laminates
The effects of layer waviness on the compression response of T3001P1700 carbon/polysulfone composite laminates were investigated both experimentally and analytically. A three-step procedure was used to fabricate isolated layer waves into the central 0° layer of …
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The effects of quenching and aging on the mechanical and physical properties of recycled aa6061 aluminum chips
… 19% from a preference value. Meanwhile, for the compression strength the increasing percentage of the compression strength is 17% also from a preference value. From all data were obtain, the optimum quenching and aging time is 8 hours quenching and 10 hours of aging. With this optimum, the …
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Environmental effects on stitched RTM composites
… fabric were determined. Data presented include compression strengths and compression-compression fatigue results for environmentally cycled and uncycled composites. Ten1perature cycling ranged from 60°C to -55°C. The relative humidity varied between 95 percent at the high temperature and a …
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Mechanical Properties of Polymer Modified Mortar
… The mechanical properties investigated were compression strength and adhesion strength. Compression strength effects did not have an impact on adhesion strength. Adhesion strength was calculated with pullout testing apparatus designed by the author. Results indicate that recycled ABS had a …
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Manufacturing of agarose-based chromatographic adsorbents with controlled pore and particle size
… effect of two processing parameters, the ionic strength of agarose solution and quenching temperature, on the structure of the resulting particles was investigated. Three characterization methods, Atomic Force and cryo-Scanning Electron microscopy, as well as mechanical testing of single …
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Finite Element Modeling of Plastic Pails when Interacting with Wooden Pallets
… is supported directly on the pallet impacts the compression strength of the plastic pail. Decreasing the quantity of support decreases the compression strength of the plastic pail in a linear pattern. The location of the deckboard gap also influenced the compression strength because of the …
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The effect of silicon carbide (SiC) on physical and mechanical properties of recycled aluminium chip AA6061
… Solid state recycling of AA6061 chips by cold compression is a current approach processing technique that uses remarkably lower energies and operating cost compared to conventional recycling by casting. Thus with the current approach of processing technique by cold compaction technique …
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The effect of fly ash on clay
… swelling characteristics while the unconfined compression strength of the mixture increased as the percentage of fly ash increased. Based upon the laboratory test results, the possibility of stabilizing swelling soils by using fly ash in structural fills should be practical. The use of fly ash …
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Determining the Role of Porosity on the Thermal Properties of Graphite Foam
… square inch, bulk density, Archimedes density, compression strength, thermal conductivity, thermal resistance, and permeability. Several relationships between the structure and properties were established, and a recommendation for the processing conditions of graphite foams for the use in heat …
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Consolidation and Interweaving of Composite Members by a Continuous Manufacturing Process
… IsoTruss structures; and (2) to measure the compression strength and stiffness of specimens produced on the machine. In order to accomplish the first purpose, various parts were manufactured on this prototype machine, including: a six-node IsoTruss structure with single outer longitudinal …
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