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2004•The Chinese Journal of Nonferrous MetalsRequires access

Numerical simulation on adiabatic shearing behavior of TB2

AN Yu-long

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Abstract

The specific coefficients of thermal viscoplastic constitutive equation for TB2 were obtained by use of the least square method and C coded programs.The method of estimate adiabatic temperature proposed was used to estimate the temperature rising in adiabatic shear band(ASB).The estimate value is in agreement with the results obtained by FEM simulation. The estimation result of adiabatic temperatures rising indicates that the temperature in ASB is between the recrystallization temperature and phase transition point, and the result is also in agreement with the characteristic of the microstructure in ASB.

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What this paper is about

The specific coefficients of thermal viscoplastic constitutive equation for TB2 were obtained by use of the least square method and C coded programs.The method of estimate adiabatic temperature proposed was used to estimate the temperature rising in adiabatic shear band(ASB).The estimate value is in agreement with the results obtained by FEM simulation. The estimation result of adiabatic temperatures rising indicates that the temperature in ASB is between the recrystallization temperature and phase transition point, and the result is also in agreement with the characteristic of the microstructure in ASB.

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Available abstract

The specific coefficients of thermal viscoplastic constitutive equation for TB2 were obtained by use of the least square method and C coded programs.The method of estimate adiabatic temperature proposed was used to estimate the temperature rising in adiabatic shear band(ASB).The estimate value is in agreement with the results obtained by FEM simulation. The estimation result of adiabatic temperatures rising indicates that the temperature in ASB is between the recrystallization temperature and phase transition point, and the result is also in agreement with the characteristic of the microstructure in ASB.

Key concepts: Adiabatic shear band, Adiabatic process, Materials science, Shearing (physics), Viscoplasticity, Thermal, Mechanics, Thermodynamics

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