A5103280326- High-Velocity Impact and Material Behavior
- Energetic Materials and Combustion
- High-pressure geophysics and materials
- Mechanical and Optical Resonators
- Electromagnetic Launch and Propulsion Technology
- Thermal and Kinetic Analysis
- Ultrasound and Cavitation Phenomena
- Laser Design and Applications
- Nuclear Materials and Properties
- Advanced Fiber Optic Sensors
- Microstructure and mechanical properties
- Advanced Fiber Laser Technologies
- Geophysics and Sensor Technology
All-Russian Scientific Research Institute of Technical Physics
2015-2022
Institute of Experimental Physics of the Slovak Academy of Sciences
2014
Spall strength and elastoplastic parameters of aluminum alloys AMg6BM AMg6M were studied in shock wave experiments with light gas guns LGG-1200 LGG-2500 results these are provided. Strength profiles registered simultaneously by VISAR interferometer PDV. Consideration was given to dependences spall on the amplitude shock-wave loading range 1.1 14.2 GPa deformation rate 0.2 3.6 · 105 s−1. Threshold damage levels for determined. It shown that alloy softens under pressure more than 5 GPa.
Stress waves have been measured under shock wave loading of zirconium alloy E110 samples with the 0.5 – 8 mm thickness at normal and elevated temperatures. Duration pulses varied from ∼0.05 up to 1μs amplitude varying 3.4 23 GPa. Free-surface velocity profiles registered using VISAR PDV interferometers nanosecond resolution. Attenuation elastic precursor has determine plastic strain rate behind front. The was observed decrease propagation 106 s−1 0.46-mm distance down 2 ⋅ 104 8-mm distance....
This paper presents a hybrid interferometric system designed to measure the surface velocity of tested specimens in shock-wave experiments. The integrates All-Fiber Velocity Interferometer System for Any Reflector (AFVISAR) and Photonic Doppler Velocimeter (PDV) channels using single probing one point under study. design allows same optical signal containing frequency shift be processed by AFVISAR PDV independent devices. has been dynamic experiments provides measurement accuracy at least...
Abstract The shock compressive wave profiles of commercial-purity titanium samples under different loading conditions have been measured. spall strength as a function the strain rate and temperature deformation has found. High-rate plastic mechanisms studied. investigated shown to occur by slip twinning. α → ω transformation established begin at 12.2 GPa.
Kh16N15M3T1 and Kh13V2 reactor steels were investigated. The study was carried out using a light-gas gun with the deformation velocities ranging from 4·10 4 to 3·10 6 s -1 shock-loading pulses in 0.05-1 μs duration range. Dependences of spallation strength dynamic elastic limit wide temperature range are obtained. recovered specimens used carry metallography analysis.
Strength characteristics of zirconium - niobium alloy E635 were measured under shock wave loading conditions at normal and elevated temperatures results these measurements are presented. Measurements taken in when samples impacted by plane waves with the pressure up to 13 GPa duration from ∼0.05 μs 1 μs. Free-surface velocity profiles recorded help VISAR PDV laser Doppler velocimeters having nanosecond time resolution. Evolution elastic precursors thickness varying 0.5 8 mm is also...
Results of investigation into strength and elasto-plastic properties 30KhGSA steel are presented. The was performed with planar samples using submicrosecond shockwave length technique. Shockwave amplitude varied in the range from 4 to 26 GPa controlled 0.2% accuracy. Steel sample temperature from-90 °C 670 °C. Stress wave profiles were registered VISAR PDV interferometers having nanosecond time resolution measurement error better than 0.8%. Special attention payed study spall fracture...