Оригинал (Original)
Автори: Димова, Б. Д., Цонев, В. Ц.
Заглавие: Методи и решения за определяне на градиента на напреженията при динамични натоварвания
Ключови думи: умора, уморна прогноза, градиент на напреженията, концентрат

Абстракт: -

Библиография

    Издание

    VII Международен конгрес „Машини, Технологии, Материали”, том 1, стр. стр. 81-84, 2010, България, София, Научно-техническия съюз по машиностроене - София, ISSN 1310-3946
    		Autors: Dimova, B. D., Tsonev, V. T.
    Title: Dynamic loading stress gradient determination methods and solutions
    Keywords: fatigue, fatigue life prediction, stress gradients, notch-tip stress distribution

    Abstract: Methods and calculations of the stress gradient ahead of notches are presented. In this paper stress field solutions given by Neuber as well as analytical solutions in the form of power series expansions, given by Howland (central hole) and Ling (semicircular notches), have been employed in the derivation of the stress gradient. Comparisons have been made with gradient calculations derived from approximate stress field formulas developed by Xu et al. and by Glinka and Newport. It is shown that the effect of the finite dimensions of the specimen on the stress gradient is correctly captured only if exact analytical solutions are employed. The results presented in this paper are useful to assess the fatigue strength of notched components.

    References

      Issue

      VII International congress “Machinery, Technology, Materials”, vol. 1, pp. 81-84, 2010, Bulgaria, Sofia, Scientific-technical union of mechanical engineering, ISSN 1310-3946

      Вид: публикация в национален форум с межд. уч., публикация в реферирано издание