Studies on the Properties of a Putty-like Explosive with a Silicone Binder

Zalewski, Karol; Chyłek, Z.; Trzciński, W. A.

doi:10.22211/cejem/135053

Cited by 4 publications

(2 citation statements)

References 5 publications

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“…When the stress or strain inside the propellant exceeds the limit, cracks may be generated and spread inside, which will lead to abnormal SRM operation, and in severe cases, safety accidents such as explosions may occur [4–6]. In addition, among various loading conditions, the loading rate and temperature have the most obvious effects on the solid propellant [7–9]. Therefore, it is necessary and important to establish a suitable model to predict the mechanical properties and damage behavior of solid propellants under different loading conditions.…”

Section: Introductionmentioning

confidence: 99%

Simulation of mechanical properties of HTPB‐based propellant by a viscoelastic spring lattice model

Xu,

Hu,

Huang

2023

Propellants Explo Pyrotec

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An improved lattice spring model extended by viscoelastic part using the Maxwell model was applied to predict the mechanical properties of HTPB‐based solid propellants. The influence of both strain rate and temperature on the maximum elongation of HTPB‐based propellants was quantitatively analyzed by simulating the uniaxial tensile test, as well as the process of crack development during tensile loads. The results show that the maximum elongation of HTPB‐based propellant decreases as a power function along with the linear increase of strain rate. In contrast, the maximum stress increases as a power function. Increasing the temperature linearly, both the maximum stress and the maximum elongation decrease as a power function.

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Section: Introductionmentioning

confidence: 99%

Simulation of mechanical properties of HTPB‐based propellant by a viscoelastic spring lattice model

Xu,

Hu,

Huang

2023

Propellants Explo Pyrotec

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“…Hydroxyl-terminated polybutadiene (HTPB) is a new type of high-energy propellant with excellent mechanical properties and high energy density, which has attracted widespread attention. During the processes of production, storage, transportation, ignition, and flight, solid rocket motors were subjected to loads such as heat, impact, vibration, acceleration, and ignition pressure [3][4][5]. If the grain's stress and strain levels exceeded acceptable levels, damages like grain fracture and deformation, debonding of the bonding interface between the grain and the shell, and other things could happen.…”

Section: Introductionmentioning

confidence: 99%

Experimental measurement and simulation of the biaxial mechanical properties of solid propellant HTPB

Jin,

Yan,

Fang

et al. 2023

Propellants Explo Pyrotec

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Hydroxyl‐terminated polybutadiene (HTPB) solid propellant was widely used in carrier rocket and guided missiles, owing to its excellent mechanical properties. The material of HTPB subjected to complex load such as in the process of manufacturing, storage and transportation. Therefore, the mechanical properties of HTPB had important implications for the safety of structure and service life. The purpose of this work is to study the effects of different loading ratios and loading speeds on the biaxial tension of hydroxyl‐terminated polybutadiene (HTPB) solid propellant with a proper kind of biaxial tensile specimen and a high volume fraction three dimensional particle filling model of the material. The proper kind of biaxial tensile specimen with which the stresses in its central part could be obtained with the loads acted on each loading direction was designed and used in the study, and the strains in its central parts were obtained with digital image correlation (DIC) method. The stress‐strain relationship at each direction could be obtained by experiments. Experimental results indicated that the loading speed remarkably influenced the biaxial tensile behaviors of HTPB propellant at room temperature and at different loading ratios. The finite element simulation results demonstrated the accuracy of the biaxial experiment. Based on the experimental results, the particle debonding in biaxial experiments were analyzed and an equivalent Poisson's ratio parameter was proposed to evaluate the degree of debonding. The highly volume fraction three dimensional particle filling model provides a good simulation with experimental results and the equivalent Poisson's ratio parameter can conveniently and accurately determine the debonding of particles which is meaningful to the structure integrity assessment of HTPB solid propellant.

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Effect of the Curative on the Thermal Decomposition Behavior and Kinetics of Polyester-Based Polyurethanes

Singh

Kishore

Kumar

et al. 2023

Journal of Macromolecular Science, Part B

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Studies on the Properties of a Putty-like Explosive with a Silicone Binder

Cited by 4 publications

References 5 publications

Simulation of mechanical properties of HTPB‐based propellant by a viscoelastic spring lattice model

Simulation of mechanical properties of HTPB‐based propellant by a viscoelastic spring lattice model

Experimental measurement and simulation of the biaxial mechanical properties of solid propellant HTPB

Effect of the Curative on the Thermal Decomposition Behavior and Kinetics of Polyester-Based Polyurethanes

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