FEA Simulation of Clinching Process Based on GTN Damage Model

Bai Jun Shi; Shu Hui Liao; Song Peng; Hang Li

doi:10.4028/www.scientific.net/AMR.652-654.2254

Paper Titles

Analysis of the Vibration Mechanism in the Turn-Milling Machining of Micro-Miniature Shafts
p.2232

Atmospheric TIG Arc Diagnostics with a Low Disturbance Electrostatic Probe
p.2239

Corrosion Resistance Prediction of Laser Tailor-Welded Blank Based on Partial Least Square
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Distribution of Magnetic Flux Density and Magnetic Force in EMR
p.2248

FEA Simulation of Clinching Process Based on GTN Damage Model
p.2254

Influence of 0 Degree to the Shoulder of the Friction Stir Welding on AA 6063 and AA 7075
p.2261

Measurement of the Surface Tension of Liquid Metal-Droplet in Arc Welding
p.2265

Prediction and Control of Weld Width of Deep Drawing Steel Laser Tailored Blanks
p.2270

Research on Repair Welding Processes of a Bainite Steel Frog
p.2274

HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 652-654FEA Simulation of Clinching Process Based on GTN...

FEA Simulation of Clinching Process Based on GTN Damage Model

Abstract:

In this work, the Gurson-Tvergaard-Needleman (GTN) damage model is adopted to depict the material damage during the clinch joining process in a simulation-based theoretical model. The parameters of the GTN model which influence the void nucleation, growth and coalescence are identified. Their values of a specific material, C45E4 (ISO) steel, have been determined after carefully comparing the simulation results with the real sheet material tensile test. The established GTN damage model parameters are then imported into the simulation model to investigate the material damage during the mechanical clinch joining process. The Finite Element Analysis (FEA) simulation results show promising, because the material’s initial damage position can be located and analyzed. For a given design, the initial fracture point was predicted which is located on the inner side of the clinched joint neck of the upper sheet, which matches with the results of the experimental test very well. It can be concluded that the incorporation of GTN damage model has extend the capability of the simulation model.