caa a22 4500 469089784 CHVBK 20180323133014.0 cr unu---uuuuu 170328e19921201xx s 000 0 eng 10.1007/BF00768562 doi (NATIONALLICENCE)springer-10.1007/BF00768562 Model of the failure of steel under conditions of stress concentration [Elektronische Daten] [S. Kotrechko, Yu. Meshkov, G. Mettus] The article explains notions concerning the nature of the brittleness of steel connected with the action of stress raisers. It shows that the embrittling effect of stress raisers is connected with their bringing about a three-dimensional state of stress and strain concentration. It substantiates the advantage of using as measure of ductility of metal the coefficient of ductility Kd determined as the ratio of the "brittle” strength of the metal (resistance to microcleavage Rmc) to the yield strength σy. This approach is applied to the cold brittleness of a product containing constructional stress raisers. It was established that this phenomenon takes place when the ductility of the metal lies below some limiting Kdc whose magnitude is determined by the parameters of the state of stress and strain and by the proneness of the metal to strain-hardening. On the example of α- iron of carbon steels it is shown that the suggested approach can be used for predicting the temperature of cold brittleness under conditions of stress concentration. Plenum Publishing Corporation, 1993 Kotrechko S. Institute of Metal Physics, Academy of Sciences of the Ukraine, Kiev aut Meshkov Yu Institute of Metal Physics, Academy of Sciences of the Ukraine, Kiev aut Mettus G. Institute of Metal Physics, Academy of Sciences of the Ukraine, Kiev aut Strength of Materials Kluwer Academic Publishers-Plenum Publishers 24/12(1992-12-01), 749-753 0039-2316 24:12<749 1992 24 11223 https://doi.org/10.1007/BF00768562 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/BF00768562 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Kotrechko S. Institute of Metal Physics, Academy of Sciences of the Ukraine, Kiev aut NATIONALLICENCE 700 1- Meshkov Yu Institute of Metal Physics, Academy of Sciences of the Ukraine, Kiev aut NATIONALLICENCE 700 1- Mettus G. Institute of Metal Physics, Academy of Sciences of the Ukraine, Kiev aut NATIONALLICENCE 773 0- Strength of Materials Kluwer Academic Publishers-Plenum Publishers 24/12(1992-12-01), 749-753 0039-2316 24:12<749 1992 24 11223 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer