scholarly journals Mechanical properties of thermal aged HTPB composite solid propellant under confining pressure

2021 ◽  
Author(s):  
Zhe-jun Wang ◽  
Hong-fu Qiang
Keyword(s):  
Mechanical Properties ◽  
Solid Propellant ◽  
Confining Pressure ◽  
Composite Solid Propellant ◽  
Composite Solid

scholarly journals Effect of Microstructure on Micro-Mechanical Properties of Composite Solid Propellant

Micromachines ◽  
2021 ◽  
Vol 12 (11) ◽  
pp. 1378
Author(s):  
Tianpeng Li ◽  
Jinsheng Xu ◽  
Junli Han ◽  
Yong He
Keyword(s):  
Mechanical Properties ◽  
Tensile Strength ◽  
Solid Propellant ◽  
Volume Fraction ◽  
Elongation Rate ◽  
Breaking Elongation ◽  
Initial Modulus ◽  
Composite Solid Propellant ◽  
Composite Solid ◽  
Effect Of Microstructure

This study was aimed at determining the effect of microstructure on the macro-mechanical behavior of a composite solid propellant. The microstructure model of a composite solid propellant was generated using molecular dynamics algorithm. The correlation of how microstructural mechanical properties and the effect of initial interface defects in propellant act on the macro-mechanics were studied. Results of this study showed that the mechanical properties of propellant rely heavily on its mesoscopic structure. The grain filling volume fraction mainly influences the propellant initial modulus, the higher the volume fraction, the higher initial modulus. Additionally, it was found that the ratio of particles influences the tensile strength and breaking elongation rate of the propellant. The big particles could also improve the initial modulus of a propellant, but decrease its tensile strength and breaking elongation rate. Furthermore, the initial defects lowered the uniaxial tensile modulus, tensile strength, and the relaxation modulus of propellant, but did not affect the relaxation behavior of the propellant.

scholarly journals Research on Creep Constitutive and Numerical Simulation of Composite Solid Propellant

2021 ◽  
Vol 1786 (1) ◽  
pp. 012002
Author(s):  
S.X. Feng ◽  
H.F. Qiang ◽  
Y.X. Liu ◽  
X.R. Wang ◽  
T.J. Geng ◽  
...  
Keyword(s):  
Numerical Simulation ◽  
Solid Propellant ◽  
Composite Solid Propellant ◽  
Composite Solid
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