Academic literature on the topic 'Wall macro-deformations'

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Journal articles on the topic "Wall macro-deformations"

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Lande, Boris, and Wayne Mitzner. "Analysis of lung parenchyma as a parametric porous medium." Journal of Applied Physiology 101, no. 3 (2006): 926–33. http://dx.doi.org/10.1152/japplphysiol.01548.2005.

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The dynamic behavior of the lung in health and disease depends on its viscoelastic properties. To better understand these properties, several mathematical models have been utilized by many investigators. In the present work, we present a new approach that characterizes the dynamics of gas flow into a viscoelastic porous medium that models the lung structure. This problem is considered in terms of the lung input impedance on a macro level and parenchymal tissue impedance on the level of an alveolar wall. We start from a basic theoretical analysis in which macroscopic tissue deformations are rep
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Kelly, Trevor. "A blind prediction test of nonlinear analysis procedures for reinforced concrete shear walls." Bulletin of the New Zealand Society for Earthquake Engineering 40, no. 3 (2007): 142–59. http://dx.doi.org/10.5459/bnzsee.40.3.142-159.

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A full scale slice of a 7 story reinforced concrete building was tested on the shake table at the UCSD Engelkirk Structural Research Centre in 2006. As part of the research project, a blind prediction contest was sponsored to assess the capability of currently available analysis procedures to predict the seismic response of cantilever reinforced concrete shear wall structures. This paper describes an entry based on a nonlinear finite element model, using macro elements to represent both the shear and the flexural modes of behaviour. A comparison of the predicted response with the test results
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Coman, Costel Catalin, Simona-Nicoleta Mazurchevici, Constantin Carausu, and Dumitru Nedelcu. "INFLUENCE OF TECHNOLOGICAL PARAMETERS ON MACHINING ACCURACY IN INCREMENTAL FORMING." International Journal of Modern Manufacturing Technologies 15, no. 2 (2023): 29–38. http://dx.doi.org/10.54684/ijmmt.2023.15.2.29.

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The practise of single-point incremental forming (SPIF) is an advanced flexible manufacturing process initiated during the early 2000s, and since then, extensive research has been conducted in this area. Sheets can be formed incrementally, which not only reduces the amount of energy needed and raw materials, but also allows for multiple products types to be made using the same set of resources. Investigations existed have helped provide a thorough understanding of the macro SPIF deformation mechanism. In the present paper the following aspects have been highlighted: the execution accuracy of t
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Atmani, A., Z. Boudaoud, and N. Djebbar. "Slenderness Ratio and Influencing Parameters on the NL Behaviour of RC Shear Wall." Civil Engineering Journal 7, no. 12 (2021): 2043–67. http://dx.doi.org/10.28991/cej-2021-03091777.

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Shear walls are very efficient structural elements to resist lateral seismic disturbance. Despite the aforementioned seismic performance, recent investigations report that they have suffered from significant structural damage after recent seismic activity, even for those complying with seismic provisions. These deficiencies in resistance and deformation capacities need to be explored. This study considers the influence of plastic length Lp, concrete compressive strength f_c28, longitudinal reinforcement ratio ρl, transverse reinforcement ratio ρsh, reduced axial load ν, confinement zone depth
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Şeker, Burçin Şenol, and Merve Özkaynak. "Seismic Performance Evaluation of Historical Case Study of Armenian Architecture Tekor Church." Civil and Environmental Engineering Reports 32, no. 2 (2022): 36–52. http://dx.doi.org/10.2478/ceer-2022-0018.

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Abstract Masonry churches, which are one of the cultural heritages, show the historical background, cultural and religious characteristics of the cities and material properties. Churches in the earthquake zone, which are different from each other in terms of typology and have a special importance, are at risk. The aim of this study is to examine the earthquake behavior of a church sample in Turkey and to provide a guide for structures with similar typology. The building was modeled and subjected to dynamic loads using macro modeling technique. Free vibration mode shapes were determined by moda
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An, Ran, Xianwei Zhang, Lingwei Kong, Jianwu Gong, and Xuewen Lei. "Artificial Ground Freezing Impact on Shear Strength and Microstructure of Granite Residual Soil Under an Extremely Low Temperature." Frontiers in Earth Science 9 (October 13, 2021). http://dx.doi.org/10.3389/feart.2021.772459.

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The Artificial Ground Freezing (AGF) method, which is widely used in tunnel excavations, significantly affects the properties of geotechnical materials in frozen walls under extremely low temperatures. In order to simulate the AGF process, the freezing treatment with a temperature of −30°C and thawing treatment temperature of 25°C were performed on natural specimens of granite residual soil (GRS). Subsequently, triaxial (TRX) tests were conducted to evaluate mechanical properties and Nuclear Magnetic Resonance Image (NMRI) tests were applied to detect pore distributions of GRS. To clarify vari
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Sözen, Şahin, and Adem Doğangün. "Evaluation of the Effect of Change in Support Conditions on the Seismic Behavior of a Historical Masonry Bridge." Journal on Computing and Cultural Heritage, April 4, 2023. http://dx.doi.org/10.1145/3590957.

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It is believed that the Yılanlı or Leylekli Bridge (bridge with stork or snake figures) in Tokat, a city with high seismicity, was built during the Roman or Byzantine period. Although no structural damage was found on the bridge, which is still open to pedestrian traffic, it is very important to determine the seismic behaviour of the bridge considering the possible earthquakes the structure will be exposed to. This paper presents the seismic response of the historical Yılanlı (Leylekli) Bridge, which has been subjected to unfavourable man-made changes in geometric shape over time. The original
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Dissertations / Theses on the topic "Wall macro-deformations"

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Yahiat, Feriel. "Analyse des mécanismes d’intensification du mélange et des transferts thermiques par combinaison de méthodes passives dans des écoulements internes tubulaires : application aux réacteurs chimiques continus et aux capteurs solaires." Electronic Thesis or Diss., Ecole nationale supérieure Mines-Télécom Lille Douai, 2023. http://www.theses.fr/2023MTLD0005.

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L’efficacité énergétique des composants et systèmes thermiques, l’amélioration et le développement de nouvelles technologies sont des enjeux majeurs aujourd’hui. Dans ce contexte général, les travaux de cette thèse s’inscrivent dans une perspective d’amélioration des performances thermiques et de mélange d’échangeurs-réacteurs multifonctionnels qui, plus que jamais, sont des composants clés. Pour atteindre cet objectif, une technique d'intensification passive a été explorée. Elle implique l'application de deux types de macro-déformations pariétales sur les parois d'un tube annulaire en écoulem
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Conference papers on the topic "Wall macro-deformations"

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Balawi, S., and J. L. Abot. "The Effect of Honeycomb Relative Density on Its Effective Elastic Properties: A Theoretical and Experimental Study." In ASME 2006 International Mechanical Engineering Congress and Exposition. ASMEDC, 2006. http://dx.doi.org/10.1115/imece2006-14124.

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Honeycombs are discrete materials at the macro scale level but their mechanical properties need to be calculated as a continuum material in order to simplify their design in engineering applications. The effective mechanical properties of honeycombs subjected to quasi-static loading were studied by analytical and numerical means and correlated with experimental results for aluminum honeycombs. In particular, the effective in-plane elastic moduli of honeycombs were studied as a function of their relative density and the full range for the relative density was divided into three regions. Beam mo
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