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Information × Registration Number 0214U003906, 0111U002381 , R & D reports Title Development of methods for assessing the strength of piecewise-homogeneous structural elements with filled cracks popup.stage_title Head Sylovanyuk Viktor, Доктор технічних наук Registration Date 14-03-2014 Organization Karpenko Physico-Mechanical Institute of the National Academy of Science of Ukraine popup.description2 The aim is to develop theoretical concepts influence of creep on the efficiency of recovery of damaged structures. Research methods based on modern approaches of materials, mechanics of deformable bodies and fracture mechanics . Built calculation model of long-term strength of the damaged with cracks and restored by injection technology elements of building constructions prolonged use . The feature of the model is the ability to take into account the processes of creep of materials and the associated stress relaxation over time. Conducted for specific injection materials ( polyurethane, polyester and epoxy resins) calculations have shown that long-term durability of structural elements can be restored significantly , sometimes several times vary ( be lower ) of short-term (instantaneous ) strength. This fact must be considered , predicting resource robotozdatnosti restored by this technology structural elements. Product Description popup.authors Івантишин Наталія Андріївна Лутицький Анатолій Лукич Онищак Наталія Вікторівна Ревенко Андріан Вікторович Юхим Роман Ярославович popup.nrat_date 2020-04-02 Close