Abstract
In this paper, experimental and numerical results of an aluminum alloy’s mechanical behavior are discussed. Over a wide range of strain rates (10−4 s−1 ≤ έ ≤ 103 s−1 ) the influence of the loading impact, velocity and temperature on the dynamic response of the material was analyzed. The interface friction effect on the material’s dynamic response is examined using a split Hopkinson pressure bar (SHPB) in a high temperature experiment using finite element analysis (FEA). The effect of different friction conditions between the specimen and the transmitted/incident bars in the SHPB system was examined using cylinder bulk specimens and cylinder plates defined with four-layer configurations. The results of these tests alongside the presented numerical simulations allow a better understanding of the phenomenon and reduces (minimizes) errors during compression tests at high and low strain rates with temperatures ranging from 21 to 300◦ C.
Original language | English |
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Article number | 4614 |
Pages (from-to) | 1-19 |
Number of pages | 19 |
Journal | Materials |
Volume | 13 |
Issue number | 20 |
DOIs | |
Publication status | Published - 2 Oct 2020 |
Externally published | Yes |
Keywords
- Aluminum alloy
- Dynamic friction
- Experiment
- Numerical simulation
- Specimen configuration
- Split Hopkinson pressure bar