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  • 1
    Electronic Resource
    Electronic Resource
    Viscoplastic field near a propagating crack-tip (1990)
    Springer
    Applied mathematics and mechanics 11 (1990), S. 33-43 
    Details
    ISSN: 1573-2754
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics , Mathematics , Physics
    Notes: Abstract An elastic-viscoplastic constitutive model is proposed instead of the usual elastoplastic model. It is assumed that when crack-tip is approached the viscosity coefficient lends to zero (η=η0r). Asymptotic analysis of the dynamic field near a propagating crack-tip is given, and the uniparameter solution is obtained. The numerical result is given for various Mach number and viscosity coefficient. Based on the asymptotic solution, a fracture criterion is proposed and the stability of crack propagation is discussed.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02014569
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