ISSN:
1573-8736
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 simple model of a random pulsed process, which describes the kinetics of crack accumulation during failure that can be characterized by an arbitrary Herst exponent H and that converts into a Poisson process when H=1/2, is proposed. 2. It is established that in the persistent regime (H〉1/2), the process exists only in the finite time interval [0, tns], where tns∼(2H − 1)−1/2H. 3. An analogy of the failure concentration criterion, which relates the size and critical concentration of cracks with the Herst exponent characterizing the kinetics of the process, is obtained on the basis of identification of the time of suppression of the process tns with the time of failure using dimensional considerations.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF02048770
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