A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Analysis of forming limits based on a new ductile damage criterion in St14 steel sheets
Highlights A new normalized ductile damage criterion containing elastic modulus comes forward. The criterion is compiled into ABAQUS/CAE’ user subroutine for the computation. This user subroutine makes the calculation more precision and efficient. Predicted forming limit diagrams using this criterion agree with experimental ones.
Abstract Analytical and numerical analyses of forming limit in sheet metal hydraulic bulging test under combined internal pressure and independent axial feeding are researched in this paper. To predict the initiation of fracture, a new normalized ductile damage criterion based on strain hardening exponent, stress triaxiality and strain lode parameters are adopted. Eventually, elastic modulus is chosen as a characterization parameter to measure the ductile damage during the process of plastic deformation of the material. In addition, the explicit expressions of elastoplastic constitutive equations related to this damage criterion are compiled and implemented in ABAQUS/CAE software as the user subroutines. After compared against the analytical and the experimental forming limit diagrams (FLDs), the simulative FLDs demonstrate to be reasonable so that this model can be extended to predict a wide range of sheet metals’ forming processes.
Analysis of forming limits based on a new ductile damage criterion in St14 steel sheets
Highlights A new normalized ductile damage criterion containing elastic modulus comes forward. The criterion is compiled into ABAQUS/CAE’ user subroutine for the computation. This user subroutine makes the calculation more precision and efficient. Predicted forming limit diagrams using this criterion agree with experimental ones.
Abstract Analytical and numerical analyses of forming limit in sheet metal hydraulic bulging test under combined internal pressure and independent axial feeding are researched in this paper. To predict the initiation of fracture, a new normalized ductile damage criterion based on strain hardening exponent, stress triaxiality and strain lode parameters are adopted. Eventually, elastic modulus is chosen as a characterization parameter to measure the ductile damage during the process of plastic deformation of the material. In addition, the explicit expressions of elastoplastic constitutive equations related to this damage criterion are compiled and implemented in ABAQUS/CAE software as the user subroutines. After compared against the analytical and the experimental forming limit diagrams (FLDs), the simulative FLDs demonstrate to be reasonable so that this model can be extended to predict a wide range of sheet metals’ forming processes.
Analysis of forming limits based on a new ductile damage criterion in St14 steel sheets
Ma, Xinkai (author) / Li, Fuguo (author) / Li, Jinghui (author) / Wang, Qianru (author) / Yuan, Zhangwei (author) / Fang, Yong (author)
2014-12-18
12 pages
Article (Journal)
Electronic Resource
English
Minimizing spring-back and thinning in deep drawing process of St14 steel sheets
| Springer Verlag | 2022
| British Library Online Contents | 1995
Prediction of Forming Limit of High-Strength Steel Sheets by Means of Criterion for Ductile Fracture
| British Library Online Contents | 2003
Effect of Local Texture on the Orange Peel Defect in St14 Steel Sheet
| British Library Online Contents | 2005
Damage work as ductile fracture criterion
| British Library Online Contents | 1994