donstuAdvanced Engineering Research (Rostov-on-Don)Advanced Engineering Research (Rostov-on-Don)2687-1653Don State Technical Universitydonstu-769Research ArticlePHYSICAL AND MATHEMATICAL SCIENCESФИЗИКО-МАТЕМАТИЧЕСКИЕ НАУКИPLASTIC DEFORMATION EVOLUTION AT BLUNT CRACK TIP IN CRYSTALЭволюция пластической деформации у затупленной вершины трещины в кристаллеКарпинскийДмитрий НиколаевичKarpinskiyDmitry N.karp@math.rsu.ruСанниковСергей ВладимировичSannikovSergey V.karp@math.rsu.ruСобольБорис ВладимировичSobolBoris V.b.sobol@mail.ruЮжный федеральный университет.РоссияSouthern Federal UniversityRussian FederationЮжный федеральный университетРоссияSouthern Federal UniversityRussian FederationДонской государственный технический университетРоссияDon State Technical UniversityRussian Federation201130122011115603612Copyright © Karpinskiy D.N., Sannikov S.V., Sobol B.V., 20112011Карпинский Д.Н., Санников С.В., Соболь Б.В.Karpinskiy D.N., Sannikov S.V., Sobol B.V.This work is licensed under a Creative Commons Attribution 4.0 License.https://www.vestnik-donstu.ru/jour/article/view/769

The plastic deformation evolution at the crack tip in ?-Fe crystal under the condition of the plane deformation (modes I, II) is calculated. Temporal distributions for the plastic deformation, effective shear stress, stress intensity factor are derived. The calculation results for the blunt and acute crack tips are compared.

Выполнен расчет эволюции пластической деформации у вершины трещины в кристалле ?-Fe в условиях плоской деформации (моды I и II). Получены временные распределения пластической деформации, эффективного сдвигового напряжения, коэффициента интенсивности напряжения. Проведено сравнение результатов расчетов для трещин с затупленной и острой вершинами.

вершина трещиныпластическая деформациякристаллдислокацииплоскости сколасистемы легкого скольжениякоэффициент интенсивности напряжения.crack tipplastic deformationcrystaldislocationscleavage faceseasy slip systemsstress intensity factor.ReferencesSinclair G.B. Stress singularities in classical elasticity-I: removal, interpretation and analysis / G.B. Sinclair // Applied Mechanics Review. – 2004. – Vol.57. – P.251-297.Sinclair G.B. Stress singularities in classical elasticity-I: removal, interpretation and analysis / G.B. Sinclair // Applied Mechanics Review. – 2004. – Vol.57. – P.251-297.Sinclair G.B. Stress singularities in classical elasticity-II: asymptotic identification / G.B. Sinclair // Applied Mechanics Review. – 2004. – Vol.57. – P.385-439.Sinclair G.B. Stress singularities in classical elasticity-II: asymptotic identification / G.B. Sinclair // Applied Mechanics Review. – 2004. – Vol.57. – P.385-439.Chan Y.-S. Dependence of crack singularity on loading functions / Y.-S. 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The authors declare that there are no conflicts of interest present.