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  • 1
    Digitale Medien
    Digitale Medien
    Effect of the strain rate on the mechanical properties and failure mode of high-strength steel (1987)
    Springer
    Strength of materials 19 (1987), S. 360-364 
    Details
    ISSN: 1573-9325
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Maschinenbau
    Notizen: Conclusions 1. A change in the strain rate in the range from 6.3×10−3 to 1.9×103 sec−1 does not have a noticeable effect on the mechanical properties of steel. A further increase of $$\dot \varepsilon$$ up to 1.9×104 sec−1 leads to an intensive increase in both the strength and plasticity properties. 2. With increase in the strain rate the effect of oxide NI on the failure process decreases, which should be considered during development of technological processes for obtaining steel. 3. The experimental results underscore the necessity to study the dynamic properties of construction materials in order to evaluate their serviceability under high rates of loading.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF01524134
    Bibliothek Standort Signatur Band/Heft/Jahr Verfügbarkeit
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  • 2
    Digitale Medien
    Digitale Medien
    Origin of two linear segments in the fracture diagram in crack resistance tests (1981)
    Springer
    Strength of materials 13 (1981), S. 980-984 
    Details
    ISSN: 1573-9325
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Maschinenbau
    Notizen: Conclusions 1. The breaks in the P-V diagrams are due to residual stresses in the specimen acquired at a certain stage of the technological process of its production or testing (welding stresses, stresses after plastic deformation, test temperature, etc.). 2. One of the chief causes of the appearance of breaks is an impermissibly harsh regime of fagituecrack formation. 3. To determine the true values of the crack resistance of a material (KIc), it is imperative that there be no breaks at all in the fracture diagram. Otherwise these values are exaggerated on account of the residual compressive stresses.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF00762166
    Bibliothek Standort Signatur Band/Heft/Jahr Verfügbarkeit
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    Artikel (Nationallizenzen)
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