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  • Inorganic Chemistry  (11,143)
  • STRUCTURAL MECHANICS  (3,898)
  • 2020-2024  (1)
  • 1985-1989  (5,325)
  • 1965-1969  (6,185)
  • 1910-1914  (3,530)
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Year
  • 1
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    Frontiers Media SA
    Publication Date: 2024-04-04
    Description: The Frontiers in Chemistry Editorial Office team are delighted to present the inaugural “Frontiers in Chemistry: Rising Stars” article collection, showcasing the high-quality work of internationally recognized researchers in the early stages of their independent careers. All Rising Star researchers featured within this collection were individually nominated by the Journal’s Chief Editors in recognition of their potential to influence the future directions in their respective fields. The work presented here highlights the diversity of research performed across the entire breadth of the chemical sciences, and presents advances in theory, experiment and methodology with applications to compelling problems. This Editorial features the corresponding author(s) of each paper published within this important collection, ordered by section alphabetically, highlighting them as the great researchers of the future. The Frontiers in Chemistry Editorial Office team would like to thank each researcher who contributed their work to this collection. We would also like to personally thank our Chief Editors for their exemplary leadership of this article collection; their strong support and passion for this important, community-driven collection has ensured its success and global impact.
    Keywords: Green and Sustainable Chemistry ; Analytical Chemistry ; Theoretical and Computational Chemistry ; Polymer Chemistry ; Medicinal and Pharmaceutical Chemistry ; Organic Chemistry ; Nanoscience ; Catalysis and Photocatalysis ; Supramolecular Chemistry ; Electrochemistry ; Inorganic Chemistry ; Chemical Biology ; thema EDItEUR::P Mathematics and Science::PD Science: general issues
    Language: English
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  • 2
    Publication Date: 2019-11-02
    Description: Critical stress curves of compressive buckling for longitudinally stiffened cylinders
    Keywords: STRUCTURAL MECHANICS
    Type: NASA-CR-91221 , GDC DDG-67-006, V. 3
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  • 3
    Publication Date: 2019-11-02
    Description: Stress analysis of semitoroidal and ogival tanks
    Keywords: STRUCTURAL MECHANICS
    Type: NASA-CR-61183
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  • 4
    Publication Date: 2019-08-28
    Description: Resonant frequencies of circular cylindrical, elliptical, turbine shaped, and conical shells
    Keywords: STRUCTURAL MECHANICS
    Type: NASA-TT-F-11719
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  • 5
    Publication Date: 2019-08-28
    Description: Models of fuel bearing nuclear reactor core matrices for analysis of individual principal and circumferential stresses based on isocline isochromatic spectra of geometric configurations
    Keywords: STRUCTURAL MECHANICS
    Type: NASA-TT-F-11371
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  • 6
    Publication Date: 2019-08-28
    Description: Analysis of transient loads produced by ignition of rocket engine during launch and flight operations for solid and liquid propellant rocket engines
    Keywords: STRUCTURAL MECHANICS
    Type: NASA-SP-8030
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  • 7
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    In:  CASI
    Publication Date: 2019-08-28
    Description: Tabulated numerical results of theories of plate vibration
    Keywords: STRUCTURAL MECHANICS
    Type: NASA-SP-160
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  • 8
    Publication Date: 2019-08-28
    Description: The applicability of linear elastic fracture mechanics to characterize the fatigue behavior of high-strength steel weldments containing lack-of-penetration (LOP) and slag/lack-of-fusion (S/LOF) discontinuities is explored. Full penetration, double-V butt welds with reinforcements removed were tested under zero-to-tension axial loading. Various filler metals and welding techniques were used. Both sound welds and welds containing discontinuities were cycled to failure. Where possible, cycles to crack initiation were estimated by strain gage measurements. The fracture mechanics approach was successful in correlating the fatigue lifetimes of specimens containing single LOP discontinuities of varying size. However, the fatigue behavior of specimens containing multiple S/LOF discontinuities proved to be much more complex and difficult to analyze.
    Keywords: STRUCTURAL MECHANICS
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  • 9
    Publication Date: 2019-08-28
    Description: Results obtained on the postbuckling behavior of plates and curved panels using the NOLIN computer program are reported. As an example, the postbuckling behavior of a flexible, isotropic and quadrangular plate is solved and the results are found to be accurate and relibale in comparison with those in the literature. The fatigue-deformation behavior of a rectangular CKL plate is measured, and the results are compared with those from NOLIN and other computer programs. A slightly curved panel with optimized layering is studied.
    Keywords: STRUCTURAL MECHANICS
    Type: NASA-TT-20094 , NAS 1.77:20094
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  • 10
    Publication Date: 2019-08-28
    Description: The concepts of software engineering which allow a user of the finite element method to describe a model, to collect and to check the model data in a data base as well as to form the matrices required for a finite element calculation are examined. Next the components of the model description are conceived including the mesh tree, the topology, the configuration, the kinematic boundary conditions, the data for each element, and the loads. The possibilities for description and review of the data are considered. The concept of the segments for the modularization of the programs follows the components of the model description. The significance of the mesh tree as a globular guiding structure will be understood in view of the principle of the unity of the model, the mesh tree, and the data base. The user-friendly aspects of the software system will be summarized: the principle of language communication, the data generators, error processing, and data security.
    Keywords: STRUCTURAL MECHANICS
    Type: NASA-TM-88528 , NAS 1.15:88528
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