Constitutive Description for Drawing Limit of Magnesium Alloy Tube Based on Continuum Damage Mechanics

Ying Tong; Guo Zheng Quan; Bin Chen

doi:10.4028/www.scientific.net/MSF.610-613.951

Paper Titles

Analysis on the Weld Defects of the AZ91D Magnesium Alloy Joints
p.931

Preparation and Property of the Environment-Friendly Anodizing Oxidation Coating of AZ31 Magnesium Alloy
p.936

Study on Corrosion and Degradation Behavior of Mg-Ca Alloy in Simulated Body Fluid
p.942

Effect of Al Content on Hydrogen Storage Properties of Amorphous Mg1-xAlxNi (x=0, 0.1, 0.2, 0.3) Alloy
p.946

Constitutive Description for Drawing Limit of Magnesium Alloy Tube Based on Continuum Damage Mechanics
p.951

Mechanochemical Synthesis of Nanocrystalline Mg-Based Hydrogen Storage Composites in Hydrogen Alloying Mills
p.955

Synergistic Effects of Al and Cr Addition on Microstructure of Mg₂Ni Hydrogen Storage Alloy
p.960

Research on Corrosion Resistance of Mg-Al-Sr Alloy
p.964

Study on Expansion of Cement-Based Material with Addition of Magnesium Oxide
p.968

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Constitutive Description for Drawing Limit of Magnesium Alloy Tube Based on Continuum Damage Mechanics

Abstract:

The elasto-plastic behavior and the drawing limit of a kind of magnesium alloy tube were investigated based on the foundational theories of the larger deformation of material and continuum damage constitutive model. The corresponding finite element numerical algorithm was developed based on the constitutive model. The non-mandrel drawing limit graph according to the diameter at different tube thickness of an AZ31B tube with diameter 10mm at 250°C and drawing velocity 100mm/s was achieved, and safe & unsafe area got partitioned. The maximum damage value was evaluated to be 0.324 according to height reduction ratio limit and rigid-plastic FE analysis.