A5081119054- Energetic Materials and Combustion
- Rocket and propulsion systems research
- Electromagnetic Launch and Propulsion Technology
- High-Velocity Impact and Material Behavior
- Thermal and Kinetic Analysis
- Advanced ceramic materials synthesis
- Metal Alloys Wear and Properties
- Microstructure and Mechanical Properties of Steels
- Advanced materials and composites
- Advanced Measurement and Detection Methods
- Material Properties and Applications
- Engineering Applied Research
- Transportation Safety and Impact Analysis
- Waste Management and Environmental Impact
- Intermetallics and Advanced Alloy Properties
- Metal and Thin Film Mechanics
- Structural Analysis of Composite Materials
- Chemical Thermodynamics and Molecular Structure
- Traumatic Ocular and Foreign Body Injuries
- Automotive and Human Injury Biomechanics
- Metallurgy and Material Forming
- Epoxy Resin Curing Processes
- Structural Response to Dynamic Loads
- Advancements in Materials Engineering
- Additive Manufacturing and 3D Printing Technologies
Military Institute of Armament Technology
2014-2024
Analyses of the human bones failure mechanisms under projectile impact conditions can be made through performing a large number ballistic trials. But amount data that collected during experiments is limited due to high dynamics process and its destructive character. Numerical analyses may support experimental methodologies allowing better understand principles phenomenon. Therefore, main aim study was create verify numerical model commercially available synthetic bone material-Synbone®. The...
Abstract The main aim of the work was experimental and numerical analysis energy absorption/dissipation capabilities failure mechanisms novel hyper-elastic target material intended for ballistic applications including layers composite armors, projectile catching systems anti-ricochet covering walls shooting ranges, tunnels, etc. Static dynamic mechanical properties were analyzed at both room elevated temperatures ( $$40\div 80\,^{\circ }\hbox {C}$$ <mml:math...
Three types of barrel steel, i.e. 38HMJ, 30HN2MFA, and DUPLEX, were used for investigations temperature characteristics thermal diffusivity expansion in the range from 50°C to 1000°C. The tests carried out applying Netzsch laser flash apparatus LFA 427 dilatometer DIL 402 C. results revealed that steels 38HMJ 30HN2MFA a material shrinkage occurs 730-740°C. This effect does not occur DUPLEX steel. rifle is covered with layer galvanic chromium. Contraction substrate leads cracking protective...
The paper presents results of Dynamic Mechanical Analysis (DMA) double-base (DB) solid rocket propellant with special attention paid to determining the glass transition temperature. presented experiments were carried out use Netzsch DMA 242C analyzer dual cantilever operation mode. Advantages and drawbacks method, measured values, as well important characteristics propellants briefly described. Obtained values storage modulus E', loss E, tanδ represented in dependence on temperature tested...
Abstract The effectiveness of multi-barrel rocket systems on today’s battlefields is strongly dependent the reliability operation and, hence, proper action all components, especially rockets and propellants. Therefore, properties solid propellants used in motors must be determined with an efficient reliable tool providing repeatable results. article presents results a thermomechanical analysis double-base propellant systems. One recommended methods for testing dynamic mechanical analysis....
The paper presents some questions of designing and testing for modern ballistic protecting screens applied materials especially such as ceramics. Continuous development present composite enforces the optimisation existing solutions protections in respect to mass, thickness costs material. In times technological arm race a reduction armour weight by 5% is success. It may be achieved new systems applying newest materials. Ballistic ceramics both enhances resistance against piercing projectiles...
The paper analyses results of experimental research homogeneous and heterogeneous solid rocket propellants. sample PAC with density 1.58 g/cm 3 H2 1.77 were both subjected to complex thermo-mechanical analysis. thermo-physical properties samples determined using KD2 Pro apparatus made by Decagon Devices, Inc. (USA). temperature characteristics thermal conductivity k (T), diffusivity D(T), volumetric heat capacity C(T) measured within the range from-20 0 C +80 C. Mechanical such as storage...
The paper presents alternative, safe and cost-effective method of determination thermophysical properties selected solid rocket propellants. homogeneous propellant PAC with density 1.58 g·cm−3 heterogeneous H2 1.77 were tested the use Decagon Devices KD2 Pro portable analyzer. device uses transient line heat source method. Temperature characteristics thermal conductivity λ, diffusivity a specific cp obtained in temperature range from -20 °C to 80 °C. own estimation procedure based on...
The paper presents results of thermal decomposition analysis selected solid rocket propellants. Homogeneous propellant PAC and heterogeneous H2 were subjected to simultaneous with the use NETZSCH STA 2500 Regulus device five heating rates 2.5, 5, 7.5, 10 15 K/min. method combines TG, DTG DTA analytical techniques in a single measurement. aim conducted experiments was study these energetic materials as well determine activation energy process preconditioning factor from TG curves. tested...
The paper presents results of experimental research homogeneous and heterogeneous solid rocket propellants with special attention given to the determination glass transition temperature. propellant PAC density 1.58 g/cm3 H2 1.77 were subjected complex thermo-mechanical analysis use DSC, DIL DMA techniques. All experiments conducted NETZSCH thermal analysers. Liquid nitrogen was used in order achieve sub-zero temperature range which occurs. Differential Scanning Calorimetry experiment DSC 404...
The paper presents results of experimental research three types homogeneous double-base solid rocket propellants with special attention given to the determination glass transition temperature and calculating activation energy transition. tested belong group highly energetic materials consisting mainly nitrocellulose nitroglycerine. experiments were carried out use NETZSCH DMA 242C analyzer dual-cantilever testing mode, heating rate 2K/min in range from –120 °C 110 °C. Liquid nitrogen was...
The paper presents results of experimental research selected solid rocket propellants with the use modern thermal analysis techniques. Differential Scanning Calorimetry (DSC) was used to determine specific heat values in temperature range from –100 °C 100 heating rate 10 K/min. Simultaneous (STA) involving differential and thermogravimetry allowed detailed decomposition process propellants. Dilatometry (DIL) experiments were study expansion coefficients linear expansion. Dynamic mechanical...
In this paper the results of storage modulus (E’), loss (E’’) and damping parameter tan (δ)=E''/E' epoxy resins Epidian 57 L285 with curing agents Z1 LH285, respectively are presented. addition to stress-strain thermal expansion characteristics 53, were obtained experimentally in order compare Dynamic Mechanical Analysis (DMA) results. Temperature range DMA investigations using Netzsch (Germany) 242C analyzer was from-120 °C +110 at heating rate 1 K/min frequency {0.1, 1, 10} Hz,...