Dynamic Mechanical Response and Damage Mechanism of HTPB Propellant under Impact Loading
Abstract
:1. Introduction
2. Experimental Methodology
2.1. Material and Specimen Preparation
2.2. Dynamic Compressive Mechanical Testing
3. Results and Discussion
3.1. Dynamic Stress–Strain Characteristics and Fracture Behavior
3.2. Strain-Rate Dependence on the Dynamic Mechanical Response
4. Conclusions
Author Contributions
Funding
Conflicts of Interest
References
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Formulation | HTPB | AP | Al | DOA | Other Additives |
---|---|---|---|---|---|
H-80W | 12 | 65 | 15 | 4 | 4 |
H-85W | 9 | 70 | 15 | 3 | 3 |
Sample | Ultimate Stress | Strain Energy Density (U) | ||
---|---|---|---|---|
Kσ | m | Ku | m | |
H-80W | 1.04933 | 0.34 | 0.00135 | 1.06 |
H-85W | 0.61128 | 0.39 | 0.00015 | 1.30 |
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Zhang, H.; Liu, M.; Miao, Y.; Wang, H.; Chen, T.; Fan, X.; Chang, H. Dynamic Mechanical Response and Damage Mechanism of HTPB Propellant under Impact Loading. Materials 2020, 13, 3031. https://doi.org/10.3390/ma13133031
Zhang H, Liu M, Miao Y, Wang H, Chen T, Fan X, Chang H. Dynamic Mechanical Response and Damage Mechanism of HTPB Propellant under Impact Loading. Materials. 2020; 13(13):3031. https://doi.org/10.3390/ma13133031
Chicago/Turabian StyleZhang, Hengning, Meng Liu, Yinggang Miao, Han Wang, Tao Chen, Xuezhong Fan, and Hai Chang. 2020. "Dynamic Mechanical Response and Damage Mechanism of HTPB Propellant under Impact Loading" Materials 13, no. 13: 3031. https://doi.org/10.3390/ma13133031