Constitutive Parameters of 18CrNiMo7-6 Alloy Determined by a Polycrystalline Model
[1]Wang Gang,Song Jian,Zhang Jianwei,et al.Constitutive Parameters of 18CrNiMo7-6 Alloy Determined by a Polycrystalline Model[J].Journal of Zhengzhou University (Engineering Science),2020,41(02):38-43.[doi:10.13705/j.issn.1671-6833.2020.03.005]
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Journal of Zhengzhou University (Engineering Science)[ISSN
1671-6833/CN
41-1339/T] Volume:
41
Number of periods:
2020 02
Page number:
38-43
Column:
Public date:
2020-05-31
- Title:
- Constitutive Parameters of 18CrNiMo7-6 Alloy Determined by a Polycrystalline Model
- Keywords:
- 18CrNiMo7-6 alloy steel; crystal plasticity; finite element analysis; stress-strain curve; Material parameters
- CLC:
- -
- Abstract:
- Grain geometry models with inhomogeneity of microstructures and crystal plastic finite elementmethods ( FEMs) have attracted more attention over recent years. To obtain constitutive parameters , anisotropyelastic and plastic constants of 18CrNiMo7-6 alloy steel were studied by using a crystal plastic FEM with soft-ware ABAQUS. Further, based on a polycrystalline FEM, sensitivity analysis of plastic parameters was carriedout with a crystal ratio-dependent hardening model. In line with numerical calculations and tensile tests, a costfunction was proposed and applied to determine a set of optimal plastic parameters. The results provided neces-sary material parameters for analysis of uneven stress concentration induced by microstructures.
- References:
- -
- Similar References:
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Last Update:
2020-05-30
