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Exploration of the damage evolution of HTPB propellant adhesive interface based on trilinear damage model

Year: 2024

Type: conference-paper

Abstract: In this paper, the HTPB propellant was used as the research object. A uniaxial tensile test was carried out at four rates. A mesoscopic model of propellant was established using the molecular dynamics method. The trilinear cohesion model was used to describe the damage behavior of the particle/matrix interface, which revealed the damage evolution of HTPB propellant under different strain rates. The results show that the interfacial damage of HTPB propellant is diffused at a high strain rate, the damage degree is lower, and the number is higher at a lower strain rate. The method adopted in this paper can reasonably describe the damage evolution phenomenon of the adhesive interface of HTPB propellant.

Source: Journal of Physics Conference Series

DOI: 10.1088/1742-6596/2879/1/012038

Authors: Pengchen Jiang, Chuntao Li, Fangyi Xu, Xiangyu Song, Wei Li

Institution: Nanjing University of Aeronautics and Astronautics

Language: English

Topic: High-Velocity Impact and Material Behavior

Subfield: Materials Chemistry

Field: Materials Science

Domain: Physical Sciences

Open Access status: diamond

OpenAlex ID: W4404020479

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