About Construction Efficiency of the Use of Strength of Metal in Products and Metal Constructions Containing Stress Concentrators
 作者： Yu. Ya. Meshkov, S. O. Kotrechko, A. V. Shiyan 作者单位： 1G. V. Kurdyumov Institute for Metal Physics, NAS of Ukraine, 36 Academician Vernadsky Blvd., UA-03142 Kyiv, Ukraine 刊名： Metallofiz. Noveishie Tekhnol., 2019, Vol.41 (05), pp.633-646 来源数据库： G.V. Kurdyumov Institute for Metal Physics, National Academy of Science of the Ukraine DOI： 10.15407/mfint.41.05.0633 关键词： Strength;  Plasticity;  Deformation endurance;  Stresses concentrator (SC);  Embrittlement threshold;  Load bearing capacity.; 原始语种摘要： The article considers the issue of measures to increase the level of safe power loading of bearing elements of structures by determining the optimal complex of strength and plastic properties of the metal in consistent with the characteristics of the stress-strain state of a product containing a specific stress concentrator. Using the results of testing samples with circumferential notches for uniaxial tension, the threshold values of a special indicator of reserve properties of strength and ductility of steels—deformation endurance (break resistance) $B_{rb}$ are determined. Below these values, a reduction in the carrying capacity of the notched sample $\sigma_{NF}$ as a sign of stress concentration will be observed. A concept of the coefficient of carrying capacity $K_N$ of metal in a... product with a stress concentrator is introduced as an indicator reflecting the degree of use of the strength of the metal to ensure the carrying capacity of the product.

• Construction　建筑物
• indicator　指示剂
• product　产物
• issue
• ensure　担保
• special　特别的
• capacity　电容量
• elements　初步
• optimal　最佳的
• concentrator　集线器集中器