Elaboration of ductile fracture criteria based on punching forgeability test

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Elaboration of ductile fracture criteria based on punching forgeability test

Łukasz Lisiecki, Skubisz Piotr

AGH University of Science and Technology, Faculty of Metals Engineering and Industrial Computer Science, Mickiewicza 30, 30-059 Krakow, Poland.

DOI:

https://doi.org/10.7494/cmms.2016.2.0562

Abstract:

A new approach of forgeability test, based on compression-punching state of stress was proposed. Comparison of the results of the presented research methodology with standard compression test is presented. The new forgeability test is designed to generate controllable failure location for good plasticity materials, which high the level of stresses accompanying the fracture. Different shape of tools and specimens tend to show the effect of geometry on the areas of concentrations of tensile and shear stresses, which play important role in formation of cracks. The paper presents the methodology based on laboratory tests of compression and pseudo-punching performed on laboratory rig with 5MN hydraulic press and numerical FEM simulation of the tests on commercial code with introduction of the elaborated fracture criteria.

Cite as:

Lisiecki, Ł., Piotr, S. (2016). Elaboration of ductile fracture criteria based on punching forgeability test. Computer Methods in Materials Science, 16(2), 70 – 75. https://doi.org/10.7494/cmms.2016.2.0562

Article (PDF):

Keywords:

Forgeability test, Failure strain, Fracture prediction, FEM

References:

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