Automatic application of periodic boundary conditions in meso analysis of composite solid propellant

Dong, Qiao; Hu, Qiang; Feng, Shuaixing

doi:10.1088/1755-1315/634/1/012083

Cited by 1 publication

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“…It was also evident that after propellants with different particle volume fractions entered the stress "platform area", the volume fraction increased whereas the degree of stress declined (Figure 4). This indicates that the mechanical properties of HTPB propellant with higher volume fractions decline more violently due to "dehumidification", which is consistent within the previous literature [21].…”

Section: Influence Of Particle Volume Fractionsupporting

confidence: 91%

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

Han

et al. 2021

Micromachines

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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.

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Section: Influence Of Particle Volume Fractionsupporting

confidence: 91%

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

Han

et al. 2021

Micromachines

View full text Add to dashboard Cite

show abstract

Automatic application of periodic boundary conditions in meso analysis of composite solid propellant

Cited by 1 publication

References 0 publications

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

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

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