Dewetting Stress of Solid Propellant under Tensile Loading

Xin Guo Liu, Zhe Jun Wang, Pei Jin Liu, Yong Heng Han, Bing Ning Jin

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

4 Scopus citations

Abstract

To more effectively investigate the microscopic damage of solid propellants under tensile loading, the mathematical expression of the critical dewetting stress for the propellant was developed based on the properties of the components in the propellant and the elastic and viscoelastic theories. The results reveal that the critical dewetting stress increases with increasing the particle-matrix interface fracture surface energy, or decreasing the radius of the filled solid particles. In other words, it is more difficult for the particle-matrix interface to fail as the critical dewetting stress increases. Finally, the conclusions obtained from the developed expression are consistent with the typical uniaxial tensile test results of hydroxyl-terminated poly butadiene (HTPB) propellant, which indicates that the developed expression of the critical dewetting stress is valid. Furthermore, the test results also indicate that the effects of loading temperature and strain rate on the dewetting are mainly due to the variations of the parameter in the critical dewetting stress with different loading conditions.

Original languageEnglish
Title of host publicationProceedings of 2018 9th International Conference on Mechanical and Aerospace Engineering, ICMAE 2018
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages570-573
Number of pages4
ISBN (Electronic)9781538672297
DOIs
StatePublished - 18 Sep 2018
Event9th International Conference on Mechanical and Aerospace Engineering, ICMAE 2018 - Budapest, Hungary
Duration: 10 Jul 201813 Jul 2018

Publication series

NameProceedings of 2018 9th International Conference on Mechanical and Aerospace Engineering, ICMAE 2018

Conference

Conference9th International Conference on Mechanical and Aerospace Engineering, ICMAE 2018
Country/TerritoryHungary
CityBudapest
Period10/07/1813/07/18

Keywords

  • dewetting stress
  • microscopic damage
  • solid propellant
  • tension loading
  • viscoelastic property

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