Numerical and experimental preliminary study of temperature distribution in an electric resistance tube furnace for hot compression tests

Torrente, Gabriel; Torres-Rodríguez, Mary

doi:10.15446/dyna.v81n186.40388

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2019

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“…The temperatures had an error less than +/-3ºC. 1,18 The stress-strain curves were calculated taking into account two corrections:…”

Section: Methodsmentioning

confidence: 99%

Hardening and Dynamic Recovery During Hot Compression Test of Copper Simulated as Viscoplastic Material

Torrente

2019

Mat. Res.

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The Norton-Bailey equation was used to simulate by finite elements the hardening and dynamic recovery of copper during the hot compression tests. The constants of Norton-Bailey equation were determined from the Voce-Kocks model. The simulation assumes a Mortar Contact with Coulomb friction and axial symmetry. Numerical results were compared with experiments. Six compression tests were carried out at 804 K, three with a strain rate of 0.1 s -1 and three with a strain rate of 1 s -1 . The results show: The differences between the experiments and the simulations are less than 7.69% for strain rates of 0.1 s -1 , and less than 0.67% for strain rates of 1 s -1 . This shows that the simulation of hardening and dynamic recovery of hot copper is possible with the Norton-Bailey equation. Better numerical results were obtained when the behavior of copper is typical of hardening and dynamic recovery, and this happen for high values of strain rates.

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“…The temperatures had an error less than +/-3ºC. 1,18 The stress-strain curves were calculated taking into account two corrections:…”

Section: Methodsmentioning

confidence: 99%

Hardening and Dynamic Recovery During Hot Compression Test of Copper Simulated as Viscoplastic Material

Torrente

2019

Mat. Res.

View full text Add to dashboard Cite

show abstract

Numerical and experimental preliminary study of temperature distribution in an electric resistance tube furnace for hot compression tests

Cited by 1 publication

References 14 publications

Hardening and Dynamic Recovery During Hot Compression Test of Copper Simulated as Viscoplastic Material

Hardening and Dynamic Recovery During Hot Compression Test of Copper Simulated as Viscoplastic Material

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