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  • 1980-1984  (3)
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  • 1
    Publication Date: 1983-11-01
    Print ISSN: 0376-9429
    Electronic ISSN: 1573-2673
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Published by Springer
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  • 2
    Electronic Resource
    Electronic Resource
    Springer
    International journal of fracture 23 (1983), S. 201-212 
    ISSN: 1573-2673
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Description / Table of Contents: Résumé On présente dans cette étude l'utilisation de la méthode de fonction pondérée pour le calcul des facteurs d'intensité de contraintes relatifs à une fissure semi-elliptique débouchant en surface d'une tôle soumise à des gradients de contrainte. En partant d'une charge de référence et du facteur d'intensité de contrainte, on calcule par voie analytique un champ de développements moyens de référence. La méthode proposée permet de calculer les facteurs d'intensité de contraintes avec un minimum de manipulations numériques au point le plus profond et en surface de la fissure. Les résultats auxquels elle conduit sont en accord satisfaisant avec des résultats FEM trouvés dans la littérature.
    Notes: Abstract The weight function method is used to calculate stress intensity factors for a semi-elliptical surface crack in a plate exposed to stress gradients. Starting from a reference load and stress intensity factor an approximate reference displacement field is calculated analytically. The present method allows to calculate stress intensity factors with minimal numerical effort at the deepest point and at the surface. Comparisons with FEM-results from the literature are presented to show satisfying agreement.
    Type of Medium: Electronic Resource
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  • 3
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Materialwissenschaft und Werkstofftechnik 14 (1983), S. 11-18 
    ISSN: 0933-5137
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Description / Table of Contents: Geometrieänderung von Oberflächenrissen unter alternierender Zug- und BiegebelastungDie Geometrieänderung von Oberflächenrissen unter alternierender Zug- und Biegebelastung wird unter Verwendung der Spannungsintensitätsfaktoren von Newmann und Raju und des ASME-Codes berechnet. Es wird angenommen, daß das Rißwachstum am tiefsten Punkt und an der Oberfläche entsprechend dem jeweiligen K-Faktor an diesem Punkt erfolgt. Berechnungen mit lokalen und über die Rißfront gemittelten K-Faktoren werden ausgeführt und mit Resultaten aus der Literatur verglichen.
    Notes: The change in geometry of surface cracks during alternating tension and bending is calculated using the stress intensity factors of Newman and Raju and of the ASME Boiler and Pressure Vessel Code. It is assumed that the crack extends at the deepest point and at the surface according to the stress intensity factors at these points. Calculations were performed with local K-values and with K-values obtained by a weighted averaging along the crack front. The obtained results were compared with results from the literature.
    Additional Material: 11 Ill.
    Type of Medium: Electronic Resource
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