Search academic texts

Information × Registration Number 0209U002643, 0106U004808 , R & D reports Title Development of the methods for assessment of structural materials resistance to fracture in hydrogen under complex chess state popup.stage_title Head Ivanytskyj Jaroslav Lavrentijovych, Registration Date 11-03-2009 Organization Karpenko Physico-Mechanical Institute of the National Academy of Sciences of Ukraine popup.description2 The criterion of a boundary-equilibrium condition of elasto-plastic body with a crack is formulated at triaxial proportional loading and action of hydrogen containing environment. The calculation model of hydrogen distribution of a crack in an elasto-plastic body is developed at triaxial loading. The method of an estimation of hydrogen influence on fatigue growth of crack is offered and analytical dependence of speed of its growth on mechanical characteristics of materials on change of durability, plasticity and crack resistance characterristics is proposed.The procedure calculation of a plastic zone length and forces of coupling in it on air and in hydrogen is developed. It is established, that the area of intensive plastic deformations corresponds to parameter dp which does not depend on the applied loading and in hydrogen decrease on 20% Product Description popup.authors popup.nrat_date 2020-04-02 Close