An effective biaxial tension and compression test method is proposed based on the shortcomings of current research for mechanical properties solid propellants under complex stress states. The equal proportion HTPB (Hydroxyl-terminated polybutadiene) NEPE (NitrateEster Plasticized Polyether) performed at different rates while room temperature, damage morphology tension–compression zone analyzed ...

Aluminium–lithium alloy (Al–Li alloy) powder has excellent ignition and combustion performance. The product of Al–Li combined with ammonium perchlorate is gaseous at the working temperature solid rocket motors, which greatly reduces loss two-phase flow. Experimental investigations were thoroughly conducted to determine effect Al–2.5Li (2.5 wt% lithium) content on propellant agglomeration based ...

The microstructure of plastic bonded explosives (PBXs) is known to influence behavior during mechanical deformation, but characterizing the microstructure can be challenging. For example, the explosive crystals and binder in formulations such as PBX 9501 do not have sufficient X-ray contrast to obtain three-dimensional data by in situ, absorption contrast imaging. To address this difficulty, we...

The safety of solid rocket engine use seriously affects the survivability and combat effectiveness weaponries. To study against fragment in complex battlefield environments, impact simulation a high-energy four-component HTPB propellant (hereafter referred to as engine) was conducted. equation state parameters reaction rate detonation product were calibrated by using 50 mm diameter cylinder tes...