Search academic texts

Information × Registration Number 0309U003191, 0107U004477 , R & D reports Title Influence investigation of electrical hydro pulse treatment on tangential stress relief within structural aluminum alloys and determination of process parameters, which provide improving material deformability popup.stage_title Розробити методику визначення в умовах ЕГ навантаження залежості внутрішньої енергії і часу релаксації дотичних напружень алюмінієвих сплавів від параметрів стану середовища. Виконати дослідження релаксації дотичних напружень при імпульсному навантаженні з урахуванням фізико-технічних властивостей алюмінієвих сплавів Head Shvets Ivan Sofronovich, Registration Date 03-03-2009 Organization Institute of Pulse Research and Engineering popup.description2 Dynamic plastic-elastic deformation of aluminum alloys is studied for the conditions approximated to deformation constant velocity within the interval from 500 to 5000 sec-1. Dependencies are determined of compression dynamic characteristics on deformation velocity and number of loading cycles. The yield point of alloy AlMg is increased by 25% as compared to static conditions of loading. It is fixed that specific internal energy dependence on deformation velocity in the studied interval is linear, and minimal time of tangential internal stresses relief equaling to 2 mcsec is realized near the yield point at deformation velocity 5000 sec-1. Mathematical model of space-shape bodies dynamic deformation is developed in conditions of multi-axial loading considering tangential stresses relief due to rheological correlations with parameters defined on basis of experimental researches.5635 Product Description popup.authors popup.nrat_date 2020-04-02 Close