Global Nuclear Safety
National Research Nuclear University "MEPhI"
online version: ISSN 2499-9733
print version: ISSN 2305-414Х
2014-3(12)
Design, manufacturing and commissioning of nuclear industry equipment
| Article Name | Dynamic Criterion of Crack Resistance of Structural Steels at Quasi-fragile Destruction |
|---|---|
| Authors | E.I. Kolokolov |
| Address | Volgodonsk Engineering Technical Institute the Branch of National Research Nuclear University «MEPhI», |
| Abstract | In article it is shown that the fracture toughness of structural steels with quasigroups destruction can be determined by analyzing the charts load-deformation and factographic analysis of fracture cylindrical samples with sharp ring cut tested on strength. Retrieved dynamic criterion of fracture toughness (VCT) - G corresponds to the critical resistance promotion cracks GC, calculated through the stress intensity factor KS according to the concept of linear fracture mechanics. The use of VCT is the most correct way to determine the work of development of cracks, determined at present by testing for impact strength prismatic samples with pre-applied fatigue crack. |
| Keywords | crack resistance, Griffiths, criteria of destruction, quasigroups destruction, visco-brittle transition (VHP), plastic deformation, elastic energy, fractography |
| Language | Russian |
| References | [1] Kachanov L.M. Osnovy mehaniki razrushenija [Introduction to probability theory and its appendices]. M. Pub. Nauka [Science], 1974. (in Russian) [2] Parton V.Z. Mehanika razrushenija ot teorii k praktike [Mechanics of destruction from the theory to practice]. M. Pub. Nauka [Science], 1990, ISBN 5-02-014287-5, 240 p. (in Russian) [3] Bartenev G.M. Sverhprochnye i vysokoprochnye neorganicheskie stekla [Heavy-duty and high-strength inorganic glasses]. M. Pub. Strojizdat [Stroyizdat], 1974 (in Russian) [4] Irvin Dzh, Paris P. Osnovy teorii rosta treshhin i razrushenija. Razrushenie [Bases of the theory of crack growth and destruction. Destruction]. T. 3 [Vol.3]. M. Pub. Mir [“Mir”], 1976. (in Russian) [5] Orowan E. Proseedings of the Symposium on Fatigue and Fracture of Metals. Wiley, N.F., 1952. p. 139. (in English) [6] Kolokolov E.I. Issledovanie osobennostej razrushenija konstrukcionnyh stalej v intervale vjazko-hrupkogo perehoda pri razlichnyh uslovijah razrushenija [Research of features of constructional steel destruction in viscous and fragile transition interval under various conditions of destruction] : avtoref. dis. kand. tehn. nauk. [PhD thesis abstract in Engineering]. M. 1979, 26 p. (in Russian) [7] Botvina L.R., Kolokolov E.I. Vvedenie v teoriyu veroyatnosti i ee prilozheniya [Introduction to probability theory and its appendices]. FHMM [PhChMM”]. 1976, pp. 23–26. (in Russian) [8] Finkel V.M. Fizika razrushenija. Metallurgija [Physics of destruction. Metallurgy]. M. Pub. 1970. (in Russian) [9] Vigli D.A. Mehanicheskie svojstva materialov pri nizkih temperaturah [Mechanical properties of materials at low temperatures]. M. Pub. Mir [“Mir”], 1974. (in Russian) |
| Papers | 31 - 43 |
| URL Article | URL Article |
| Open Article |