effect of microstructure
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2022 ◽  
Vol 521 ◽  
pp. 230928
Author(s):  
Zibin Wu ◽  
Haitao Zhang ◽  
Hiromi Nagaumi ◽  
Dongtao Wang ◽  
Shuncun Luo ◽  
...  

2022 ◽  
Vol 207 ◽  
pp. 114306
Author(s):  
Shengli Li ◽  
Napat Vajragupta ◽  
Abhishek Biswas ◽  
Wenshen Tang ◽  
Hao Wang ◽  
...  

2022 ◽  
Vol 145 ◽  
pp. 111559
Author(s):  
Te Yao ◽  
Pei Gong ◽  
Hua Li ◽  
Zongying Wei ◽  
Xiao Li ◽  
...  

Micromachines ◽  
2021 ◽  
Vol 12 (11) ◽  
pp. 1378
Author(s):  
Tianpeng Li ◽  
Jinsheng Xu ◽  
Junli Han ◽  
Yong He

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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