Классическое решение смешанных задач из теории продольного удара по упругому полубесконечному стержню в случае отделения ударившего тела после удара

Рассматриваются две связанные начально-краевые задачи, которые моделируют процесс продольного удара в полубесконечном стержне на основе теории Сен-Венана. Математическая постановка задачи представляет собой две смешанные задачи для одномерного волнового уравнения с условиями сопряжения. Условия Коши задаются на пространственной полупрямой. Начальное условие для частной производной по временной переменной имеет разрыв первого рода в одной точке. На временной полупрямой задается граничное условие, содержащее неизвестную функцию и ее частные производные первого и второго порядка. Решение строится методом характеристик в явном аналитическом виде. Доказана единственность и установлены условия существования кусочно-гладкого решения. Рассмотрено классическое решение смешанной задачи с условиями сопряжения.

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