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Задача о центральной продольной трещине нормального отрыва с наполнителем в полосе

Authors: Antonenko, N. N.;

Задача о центральной продольной трещине нормального отрыва с наполнителем в полосе

Abstract

Предложен способ решения задачи о центральной продольной трещине нормального отрыва с наполнителем в полосе. Для решения задачи использовано интегральное преобразование Фурье. Задача сведена к интегро- дифференциальному уравнению относительно функции, связанной со скачком вертикальных перемещений на берегах трещины. Приведены результаты численных расчетов, которые иллюстрируют влияние наполнителя трещины, толщины и упругих характеристик полосы на коэффициенты интенсивности напряжений. The solution to the problem of the central longitudinal opening mode crack with the filler in the strip is given. Within this model we suppose that disturbances of vertical displacement at crack edges are proportional to the normal stress at its edges. Fourier integral transformation is used to solve the problem. The problem is reduced to integral differential equation as function which is connected with disturbances of vertical displacement at crack edges. On the basis of numerical results the conclusion is made that the increase of the half-width of the strip and coefficient which is characterized by the filler leads to the reduction stress intensity coefficients (SIC), the increase of modulus of rigidity and Poisson’s strain ratio will lead to the increase of stress intensity coefficients, elastic behaviour of the strip doesn’t affect stress intensity coefficients for the cracks with stress-free edges. Антоненко Нина Николаевна – кандидат физико-математических наук, старший преподаватель, кафедра общей математики, Запорожский национальный технический университет. E-mail: antonenkonina@i.ua. Antonenko Nina Nikolayevna is Cand. Sc. (Physics and Mathematics), Senior Lecturer, Department of General Mathematics, Zaporizhzhya National Technical University. E-mail: antonenkonina@i.ua

Keywords

УДК 539.3, stress intensity coefficients, полоса, filler, crack, трещина, интегральное преобразование Фурье, Fourier integral transformation, коэффициенты интенсивности напряжений, УДК 517.968.7, strip, integral differential equation, наполнитель, интегро-дифференциальное уравнение, ГРНТИ 30.19

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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
0
Average
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