Work

Investigation on Aging Model of Solid Propellant Using the Degree of Crosslinking

Year: 2022

Type: article

Abstract: Solid propellant is the main part of solid rocket motor (SRM). To further investigate the service life of SRM, aging of solid propellant should be concerned. The aim of this study is to propose a new aging constitutive model of solid propellant using the degree of crosslinking. The aging development equation of viscoelastic Poisson’s ratio (VPR) and relaxation modulus are considered in establishing the model. A series accelerated aging experiments accompanied with some tensile tests are designed to verify the new model. Aging experiments show that degree of crosslinking (DCL) can be used to act as a link to facilitate the communication between chemical aging and aged mechanical parameters well.

Source: International Journal of Aerospace Engineering

DOI: 10.1155/2022/2700740

Authors: Junqi Wang, Huiru Cui, Weili Ma

Institutions: Northwestern Polytechnical University, PLA Army Engineering University, Chang'an University

Language: English

Topic: Rocket and propulsion systems research

Subfield: Aerospace Engineering

Field: Engineering

Domain: Physical Sciences

Open Access status: gold

Estimated APC paid: $2,570

Funders: Government of Jiangsu Province, Natural Science Foundation of Jiangsu Province