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  • 1
    Electronic Resource
    Electronic Resource
    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
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Notes: 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.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01524134
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    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
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Notes: 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.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00762166
    Library Location Call Number Volume/Issue/Year Availability
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    Paper (German National Licenses)
    Fulltext
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