Response characteristics of Al/PTFE reactive material with aluminum honeycomb framework under impact loading
As a kind of active damage element with penetration and explosion effects, Al/PTFE reactive material has an important applied prospect in the field of terminal effect and damage. However, pure Al/PTFE reactive material has some limitations in strength, which hinders its wide application. Based on th...
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| Main Authors: | , , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Elsevier
2025-05-01
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| Series: | Journal of Materials Research and Technology |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S2238785425013298 |
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| Summary: | As a kind of active damage element with penetration and explosion effects, Al/PTFE reactive material has an important applied prospect in the field of terminal effect and damage. However, pure Al/PTFE reactive material has some limitations in strength, which hinders its wide application. Based on the traditional formula Al/PTFE (26.5 wt%/73.5 wt%), two kinds of Al/PTFE reactive materials were prepared by adding aluminum honeycomb with arm length and thickness of 1.5 mm and 38 μm as framework (I: Al/PTFE/Aluminum honeycomb is 20.5 wt%/73.5 wt%/6 wt%, II: Al/PTFE/Aluminum honeycomb is 24.9 wt%/69.1 wt%/wt6 %), respectively. By combining experiment with theoretical derivation, the dynamic behavior of Al/PTFE/aluminum honeycomb framework was studied, and the constitutive model of material was fitted. The results show that the Al/PTFE reactive material reinforced by aluminum honeycomb has obvious strain rate effect. The strength of Al/PTFE reactive material with aluminum honeycomb framework is affected by Al/PTFE filler when the size of aluminum honeycomb is determined. The higher the strength of Al/PTFE filler is, the better the reinforcement effect is. For Al/PTFE reactive material reinforced by aluminum honeycomb skeleton, the skeleton reinforcement and powder compaction correction coefficients are 11.26 and 0.16, respectively. |
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| ISSN: | 2238-7854 |