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IssuesArchive of Issues2012-4pp.426-432

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R.A. Arutyunyan, "Estimate of Energy Consumption in Fracture of Solids," Mech. Solids. 47 (4), 426-432 (2012)
Year 2012 Volume 47 Number 4 Pages 426-432
DOI 10.3103/S0025654412040073
Title Estimate of Energy Consumption in Fracture of Solids
Author(s) R.A. Arutyunyan (St. Petersburg State University, Universitetskaya nab. 7-9, St.†Petersburg, 199034 Russia, robert.arutyunyan@paloma.spbu.ru)
Abstract The problem of determining the loading conditions under which the maximum softening of materials is attained with minimal fracture energy consumption is posed in many practical applications (in building, explosion, drilling, grinding, metal processing by cutting, domestic and industrial waste processing, food industry, drug production, and pulp-and-paper industry). Nowadays, in many of these areas, the fracture energy consumption is rather large and ill grounded. Comparison of energy consumption by different loading programs allows one to distinguish energy saving loading conditions which can be recommended to improve the structures and operation modes of various equipment, in particular, in the field of grinding of hard materials.

In the present paper, it is proposed to estimate the energy consumption according to the damage summation law expressed in terms of relative energy consumption indices.
Keywords damage summation laws, energy consumption, long-term and cyclic load alternation tests, energy saving loading conditions
References
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9.  H. Mayer, C. Ede, and J. E. Allison, "Influence of Cyclic Loads below Endurance Limit or Threshold Stress Intensity on Fatigue Damage in Cast Aluminum Alloy," Int. J. Fatigue 27 (2), 139-141 (2005).
10.  A. Westwood and J. Pikkens, "Use of Fracture," in Atomic Theory of Fracture (Mir, Moscow, 1987) [in Russian].
11.  R. A. Arutyunyan, L. I. Doktorenko, V. V. Drozdov, and V. M. Chebanov, "Vulnerability of Damage and Failure of Organic Glass in Alternating Long-Term and Cyclic Loading," Dokl. Akad. Nauk SSSR 287 (4), 810-812 (1986) [Sov. Phys. Dokl. (Engl. Transl.) 31, 355-358 (1986)].
12.  C. E. Feltner and J. D. Morrow, "Microplastic Strain Hysteresis Energy as a Criterion for Fatigue Fracture," Trans. ASME 83 (1), 15-22 (1961).
Received 02 February 2010
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