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Моделирование безопасности по несущей способности дымовых труб с основанием при взрыве атомной бомбы в Нагасаки

Моделирование безопасности по несущей способности дымовых труб с основанием при взрыве атомной бомбы в Нагасаки

Abstract

Covers some aspects of numerical simulation of elastic stress waves in elastic half-plane with flue pipes with concentrated explosive impact in the form of a Delta function. For the solution of two-dimensional non-stationary dynamical problems of the mathematical theory of elasticity with initial and boundary conditions using the finite element method in the movements. The problem is solved by the method of end-to-end account, without allocation of breaks. The basic correlations of the finite element method is obtained using the principle of possible displacements. Linear problem with initial and boundary conditions are given by the linear Cauchy problem. Is the attempt to simulate the impact of a blast wave on the structure with soil and air environments in the explosion of the atomic bomb in Nagasaki. The results show that chimneys reduce the normal stress at the boundary between media in the vicinity of the structure.

Рассматриваются некоторые вопросы численного моделирования упругих волн напряжений в упругой полуплоскости с дымовыми трубами при сосредоточенном взрывном воздействии в виде дельта функции. Для решения двумерной нестационарной динамической задачи математической теории упругости с начальными и граничными условиями используем метод конечных элементов в перемещениях. Задача решается методом сквозного счета, без выделения разрывов. Основные соотношения метода конечных элементов получены с помощью принципа возможных перемещений. Линейная задача с начальными и граничными условиями приведена к линейной задаче Коши. Приводится попытка моделирования воздействия взрывной волны на сооружение с грунтовой и воздушной средами при взрыве атомной бомбы в Нагасаки. Полученные результаты показывают, что дымовые трубы уменьшают нормальные напряжения на границе сред в окрестности сооружения.

Keywords

НЕСТАЦИОНАРНЫЕ ВОЛНЫ, ЧИСЛЕННЫЙ МЕТОД, ПЕРЕМЕЩЕНИЕ, СКОРОСТЬ ПЕРЕМЕЩЕНИЙ, УСКОРЕНИЕ, НАПРЯЖЕНИЕ, ТЕОРИЯ УПРУГОСТИ, КРАЕВАЯ ЗАДАЧА, ЗАДАЧА С НАЧАЛЬНЫМИ УСЛОВИЯМИ, ЗАДАЧА КОШИ, КОНЕЧНЫЕ ЭЛЕМЕНТЫ, ТРЕУГОЛЬНЫЙ КОНЕЧНЫЙ ЭЛЕМЕНТ, ПРЯМОУГОЛЬНЫЙ КОНЕЧНЫЙ ЭЛЕМЕНТ, КОНТУРНЫЙ КОНЕЧНЫЙ ЭЛЕМЕНТ, МЕТОДИКА, АЛГОРИТМ, КОМПЛЕКС ПРОГРАММ, ДЫМОВАЯ ТРУБА, АТОМНАЯ БОМБА, НАГАСАКИ

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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
Average
Average
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