Experimental and Computational Study of Ductile Fracture in Small Punch Tests
AbstractA unified experimental-computational study on ductile fracture initiation and propagation during small punch testing is presented. Tests are carried out at room temperature with unnotched disks of different thicknesses where large-scale yielding prevails. In thinner specimens, the fracture occurs with severe necking under membrane tension, whereas for thicker ones a through thickness shearing mode prevails changing the crack orientation relative to the loading direction. Computational studies involve finite element simulations using a shear modified Gurson-Tvergaard-Needleman porous plasticity model with an integral-type nonlocal formulation. The predicted punch load-displacement curves and deformed profiles are in good agreement with the experimental results. View Full-Text
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Gülçimen Çakan, B.; Soyarslan, C.; Bargmann, S.; Hähner, P. Experimental and Computational Study of Ductile Fracture in Small Punch Tests. Materials 2017, 10, 1185.
Gülçimen Çakan B, Soyarslan C, Bargmann S, Hähner P. Experimental and Computational Study of Ductile Fracture in Small Punch Tests. Materials. 2017; 10(10):1185.Chicago/Turabian Style
Gülçimen Çakan, Betül; Soyarslan, Celal; Bargmann, Swantje; Hähner, Peter. 2017. "Experimental and Computational Study of Ductile Fracture in Small Punch Tests." Materials 10, no. 10: 1185.
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