1 documents found
Information × Registration Number 0214U007020, 0112U002783 , R & D reports Title The development of the methods of the structure elements durability estimation taking into account structure-mechanical damaging of materials near the stress concentrators popup.stage_title Head Ostash Orest, Registration Date 02-04-2014 Organization Karpenko Physico-Mechanical Institute of the National Academy of Science of Ukraine popup.description2 The fatigue prefracture (process) zone formation and microcracks initiation and propagation in this zone are investigated. The new methods for determining its size, specifically by tools of electron microscopy, are developed. The regularities of the structural-phase state and physical-mechanical properties changes of the aircraft and thermal power plants steam pipelines after long-term service are established. The reduction of the fatigue crack growth resistance in corrosion environment for aluminium D16ATNV and V95T1 alloys from the upper and lower wing skins of AN-12 depending on the degradation grade in different areas of the wing is shown. It is elucidated that regularities of structural-phase state and operational damage influence on the coercive force of steam pipelines heat-resistant steels 12H1MF and 15H1M1F is determined by content of fine carbides, measuring up to 0.5 microns. The possibility to diagnose of technical state of long operated steam pipelines by measurements of coercive force of structural steels is experimentally proved. The approbation of eddy current probes composed universal eddy current flaw for the control of the real structural components is carried out. In particular, the method of the longitudinal fatigue cracks detecting in multilayer compound zone of "Boeing - 737" aircraft fuselage is developed. Product Description popup.authors Івасишин Андрій Дмитрович Андрейко Ігор Михайлович Віра Володимир Володимирович Василів Богдан Дмитрович Вольдемаров Олександр Володимирович Головатюк Юрій Володимирович Горак Ігор Степанович Горбунов Володимир Васильович Дзера Володимир Юрійевич Кириченко Ірина Іванівна Кисілевський Лев Несторович Подгурська Вікторія Іванівна Тепла Ніна Михайлівна Учанін Валентин Миколайович Чепіль Роман Володимирович popup.nrat_date 2020-04-02 Close
R & D report
The development of the methods of the structure elements durability estimation taking into account structure-mechanical damaging of materials near the stress concentrators
Head: Ostash Orest. The development of the methods of the structure elements durability estimation taking into account structure-mechanical damaging of materials near the stress concentrators. (popup.stage: ). Karpenko Physico-Mechanical Institute of the National Academy of Science of Ukraine. № 0214U007020
1 documents found

Updated: 2026-03-26


Роздрукувати цю сторінку