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PLASTIC BARRIER DEFORMATION MECHANISM
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Рассматривается ударное нагружение преграды из пластичного материала. Постулируется, что процесс деформирования можно моделировать двумя самостоятельными сопряженными задачами: деформация преграды как плиты конечной толщины из упруго-вязкопластического материала жестким ударником и оценка потери энергии ударника на деформирование материала под ним и преодоление силы лобового сопротивления. Показано, что, с одной стороны, наиболее существенны потери энергии ударника на деформирование материала преграды продольными волнами напряжений и на формирование, и на срез пробки, а с другой, процесс выдвижения сформировавшейся пробки наиболее длителен и формирует, в основном, время пробития.
FSB EIHE Omsk State Technical University
Title: PLASTIC BARRIER DEFORMATION MECHANISM
Description:
Рассматривается ударное нагружение преграды из пластичного материала.
Постулируется, что процесс деформирования можно моделировать двумя самостоятельными сопряженными задачами: деформация преграды как плиты конечной толщины из упруго-вязкопластического материала жестким ударником и оценка потери энергии ударника на деформирование материала под ним и преодоление силы лобового сопротивления.
Показано, что, с одной стороны, наиболее существенны потери энергии ударника на деформирование материала преграды продольными волнами напряжений и на формирование, и на срез пробки, а с другой, процесс выдвижения сформировавшейся пробки наиболее длителен и формирует, в основном, время пробития.
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