H
Hai Rong
Researcher at Dalian University of Technology
Publications - 8
Citations - 110
Hai Rong is an academic researcher from Dalian University of Technology. The author has contributed to research in topics: Formability & Forming processes. The author has an hindex of 3, co-authored 8 publications receiving 54 citations.
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Thermal forming limit diagram (TFLD) of AA7075 aluminum alloy based on a modified continuum damage model: Experimental and theoretical investigations
TL;DR: In this paper, a modified continuum damage model was proposed to describe the damage evolution and predict the fracture behavior of AA7075 at elevated temperatures (300-400 °C), where the uniaxial equations were extended into a set of multi-axial CDCEs by introducing a multiaxial damage correction formula to predict the TFLD.
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On the thermal forming limit diagram (TFLD) with GTN mesoscopic damage model for AA7075 aluminum alloy: Numerical and experimental investigation
TL;DR: In this article, a mesoscopic damage model was implemented to take account of the damage evolution phenomenon of AA7075 at elevated temperatures, and the temperature-dependent damage void volume fractions (VVF) were identified accurately based on a novel inverse identification procedure, named the CCD parameters design-FEM inverse simulation-genetic algorithm (CCD-FEIS-GA).
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Investigation on mechanical behavior and plastic damage of AA7075 aluminum alloy by thermal small punch test: Experimental trials, numerical analysis
TL;DR: In this paper, the mesoscopic damage Gurson-Tvergaard-Needleman (GTN) model was employed to predict the micro-area ductile fracture and to conduct formability prediction.
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Modeling the anisotropic plasticity and damage of AA7075 alloy in hot forming
TL;DR: In this paper, an improved anisotropic damage constitutive model was proposed to accurately predict the forming limit curves of AA7075 alloy for different forming temperatures, strain rates and loading directions.
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Characterization on the thermal anisotropic behaviors of high strength AA7075 alloy with the Yld2004-18p yield function
TL;DR: In this paper, the authors used the Yld2004-18p function to characterize the thermal anisotropic behaviors of AA7075 alloy and applied it to the ABAQUS/Explicit to conduct hot cup drawing simulations.