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材料力学研究室（岩本剛研究室） Laboratory of Mechanics of Materials (Takeshi Iwamoto Laboratory)
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Reference
1. Chong Gao, Takeshi Iwamoto. Finite element analysis on a newly-modified method for the Taylor impact test to measure the stress-strain curve by the only single test using pure aluminum. Metals 2018; 8: 642-657. https://doi.org/10.3390/met8080642
2. Chong Gao, Takeshi Iwamoto. Measurement of transient temperature at super-high-speed deformation. International Journal of Mechanical Sciences, Vol. 206, pp. 106626, 2021. https://doi.org/10.1016/j.ijmecsci.2021.106626
3. Chong Gao, Takeshi Iwamoto. An instrumented Taylor impact test for measurement of stress-strain curve through single trial. International Journal of Impact Engineering, Vol. 157, pp. 103980, 2021. https://doi.org/10.1016/j.ijimpeng.2021.103980
4. Chong Gao, Takeshi Iwamoto. A study on measuring distribution of temperature for instrumented Taylor impact test. EPJ Web of Conference, Vol. 250, pp. 01028, 2021. https://doi.org/10.1051/epjconf/202125001028
5. Chong Gao, Takeshi Iwamoto. A study on change in temperature of pure aluminum during impact compressive test by miniature split Hopkinson pressure bar technique. Proceedings of 10th International Symposium on Impact Engineering 2019-ISIE 2019, Trauner Verlag, pp. 39-43, 2019.
6. Chong Gao, Takeshi Iwamoto. A study on change in temperature of pure aluminum during compressive test at higher strain rate based on miniature split Hopkinson pressure bar method. Proceeding of the 2nd International Conference on Impact Loading of Structures and Materials, CD-ROM, 2018.
Experimental method
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Fig. 1. Measurement method for temperature rise in miniature SHPB test.
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Fig. 2 Instrumented Taylor impact test for measuring stress-strain curves.
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Fig. 3. Measurement method for temperature rise in Taylor impact test.
Results
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Fig. 1. Output voltage of the strain gauges, thermocouple and infrared detector at 27000 /s of the strain rate.
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Fig. 2. Time history of plastic strain, transmission wave and temperature rise obtained by miniature SHPB testing apparatus.
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Fig. 3. Temperature rise-plastic strain curves obtained by experiment, finite element simulation and theoretical calculation at 27000 /s of the strain rate.
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Fig. 4. Distribution of strain from calculation based on FEM and contour at 50 μs of the elapsed time.
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Fig. 5. Distribution of stress from calculation based on FEM and contour at 50 μs of the elapsed time.
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Fig. 6. Stress-strain curve obtained from calculation based on FEM at 50 μs of the elapsed time.
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Fig. 7. Distribution of strain obtained from experiment at 140 and 168 m/s of the impact speed.
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Fig. 8. Distribution of stress obtained from experiment at 140 and 168 m/s of the impact speed.
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Fig. 9. Stress-strain curve obtained from experiment at 28.56 μs of the elapsed time and 140 m/s of the impact speed.
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Fig. 10. Stress-strain curve obtained from experiment at 28.56 μs of the elapsed time and 168 m/s of the impact speed.
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Fig. 11. Output voltage of the strain gauges and infrared detector in Taylor impact test.
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Fig. 12. Distribution of temperature.
- 追加された行はこの色です。
- 削除された行はこの色です。
- CGao へ行く。
- CGao の差分を削除
#author("2022-01-24T06:57:18+00:00","default:admin","admin") #author("2022-01-24T07:12:01+00:00","default:admin","admin") Reference 1. Chong Gao, Takeshi Iwamoto. Finite element analysis on a newly-modified method for the Taylor impact test to measure the stress-strain curve by the only single test using pure aluminum. Metals 2018; 8: 642-657. https://doi.org/10.3390/met8080642 2. Chong Gao, Takeshi Iwamoto. Measurement of transient temperature at super-high-speed deformation. International Journal of Mechanical Sciences, Vol. 206, pp. 106626, 2021. https://doi.org/10.1016/j.ijmecsci.2021.106626 3. Chong Gao, Takeshi Iwamoto. An instrumented Taylor impact test for measurement of stress-strain curve through single trial. International Journal of Impact Engineering, Vol. 157, pp. 103980, 2021. https://doi.org/10.1016/j.ijimpeng.2021.103980 4. Chong Gao, Takeshi Iwamoto. A study on measuring distribution of temperature for instrumented Taylor impact test. EPJ Web of Conference, Vol. 250, pp. 01028, 2021. https://doi.org/10.1051/epjconf/202125001028 5. Chong Gao, Takeshi Iwamoto. A study on change in temperature of pure aluminum during impact compressive test by miniature split Hopkinson pressure bar technique. Proceedings of 10th International Symposium on Impact Engineering 2019-ISIE 2019, Trauner Verlag, pp. 39-43, 2019. 6. Chong Gao, Takeshi Iwamoto. A study on change in temperature of pure aluminum during compressive test at higher strain rate based on miniature split Hopkinson pressure bar method. Proceeding of the 2nd International Conference on Impact Loading of Structures and Materials, CD-ROM, 2018. Experimental method |>|&ref(Fig.a.png);| Fig. 1. Measurement method for temperature rise in miniature SHPB test. |>|&ref(Fig.b.png);| Fig. 2 Instrumented Taylor impact test for measuring stress-strain curves. |>|&ref(Fig.b.png);| |>|&ref(Fig.d.png);| Fig. 3. Measurement method for temperature rise in Taylor impact test. Results |>|&ref(Fig.1.png);| Fig. 1. Output voltage of the strain gauges, thermocouple and infrared detector at 27000 /s of the strain rate. |>|&ref(Fig.2.png);| Fig. 2. Time history of plastic strain, transmission wave and temperature rise obtained by miniature SHPB testing apparatus. |>|&ref(Fig.3.png);| Fig. 3. Temperature rise-plastic strain curves obtained by experiment, finite element simulation and theoretical calculation at 27000 /s of the strain rate. |>|&ref(Fig.4.png);| Fig. 4. Distribution of strain from calculation based on FEM and contour at 50 μs of the elapsed time. |>|&ref(Fig.5.png);| Fig. 5. Distribution of stress from calculation based on FEM and contour at 50 μs of the elapsed time. |>|&ref(Fig.6.png);| Fig. 6. Stress-strain curve obtained from calculation based on FEM at 50 μs of the elapsed time. |>|&ref(Fig.7.png);| Fig. 7. Distribution of strain obtained from experiment at 140 and 168 m/s of the impact speed. |>|&ref(Fig.8.png);| Fig. 8. Distribution of stress obtained from experiment at 140 and 168 m/s of the impact speed. |>|&ref(Fig.9.png);| Fig. 9. Stress-strain curve obtained from experiment at 28.56 μs of the elapsed time and 140 m/s of the impact speed. |>|&ref(Fig.10.png);| Fig. 10. Stress-strain curve obtained from experiment at 28.56 μs of the elapsed time and 168 m/s of the impact speed. |>|&ref(Fig.11.png);| Fig. 11. Output voltage of the strain gauges and infrared detector in Taylor impact test. |>|&ref(Fig.12.png);| Fig. 12. Distribution of temperature.