A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Modeling and experimental verification of thermo-mechanical coupled behavior of face-centered-cubic polycrystals
Highlights An improved integration model is presented to describe the thermo-mechanical coupled behavior of FCC polycrystals. The thermal tensile test of 22MnB5 boron steel in austenite region is performed. Effects of temperature, strain rate and cooling rate on materials’ forming process are studied.
Abstract An improved integration model based on crystal plasticity is presented to model the thermo-mechanical processes of face-centered-cubic (FCC) polycrystals. In this model, the thermal part of deformation gradient is introduced into the multiplicative decomposition of the total deformation gradient and the plastic deformation gradient is chosen as the basic integration variable. The effects of temperature, temperature changing rate and dissipation of plastic deformation are considered in the finite deformation computation. The obtained plastic deformation gradient includes the plastic deformation as well as the thermal effects. In applications, the mechanical behaviors of 1100 Al in warm forming and 22MnB5 boron steel in hot tensile deformation were computed using this model. In experiments, the hot tensile tests of 22MnB5 boron steel were performed in the isothermal and non-isothermal conditions. The predicted results can reflect the thermal effects in forming process and agree well with the experimental data.
Modeling and experimental verification of thermo-mechanical coupled behavior of face-centered-cubic polycrystals
Highlights An improved integration model is presented to describe the thermo-mechanical coupled behavior of FCC polycrystals. The thermal tensile test of 22MnB5 boron steel in austenite region is performed. Effects of temperature, strain rate and cooling rate on materials’ forming process are studied.
Abstract An improved integration model based on crystal plasticity is presented to model the thermo-mechanical processes of face-centered-cubic (FCC) polycrystals. In this model, the thermal part of deformation gradient is introduced into the multiplicative decomposition of the total deformation gradient and the plastic deformation gradient is chosen as the basic integration variable. The effects of temperature, temperature changing rate and dissipation of plastic deformation are considered in the finite deformation computation. The obtained plastic deformation gradient includes the plastic deformation as well as the thermal effects. In applications, the mechanical behaviors of 1100 Al in warm forming and 22MnB5 boron steel in hot tensile deformation were computed using this model. In experiments, the hot tensile tests of 22MnB5 boron steel were performed in the isothermal and non-isothermal conditions. The predicted results can reflect the thermal effects in forming process and agree well with the experimental data.
Modeling and experimental verification of thermo-mechanical coupled behavior of face-centered-cubic polycrystals
Zhao, Dan (author) / Zhu, Yiguo (author) / Ying, Liang (author) / Hu, Ping (author) / Zhang, Wanxi (author)
2013-05-29
6 pages
Article (Journal)
Electronic Resource
English
| British Library Online Contents | 2013
| British Library Online Contents | 2013
| British Library Online Contents | 2013
| British Library Online Contents | 2013
Dynamics of texture evolution in face-centered cubic polycrystals
| British Library Online Contents | 2009