Digitale Medien
Springer
Applied mathematics and mechanics
11 (1990), S. 33-43
ISSN:
1573-2754
Quelle:
Springer Online Journal Archives 1860-2000
Thema:
Maschinenbau
,
Mathematik
,
Physik
Notizen:
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.
Materialart:
Digitale Medien
URL:
http://dx.doi.org/10.1007/BF02014569
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