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| Naji, M. |
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| Motta, Antonella |
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| Aletan, Dirar |
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| Mohamed, Tarek |
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| Ertürk, Emre |
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| Taccardi, Nicola |
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| Kononenko, Denys |
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| Petrov, R. H. | Madrid |
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| Alshaaer, Mazen | Brussels |
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| Bih, L. |
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| Casati, R. |
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| Muller, Hermance |
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| Kočí, Jan | Prague |
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| Šuljagić, Marija |
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| Kalteremidou, Kalliopi-Artemi | Brussels |
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| Azam, Siraj |
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| Ospanova, Alyiya |
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| Blanpain, Bart |
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| Ali, M. A. |
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| Popa, V. |
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| Rančić, M. |
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| Ollier, Nadège |
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| Azevedo, Nuno Monteiro |
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| Landes, Michael |
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| Rignanese, Gian-Marco |
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Jasiński, Cezary
Warsaw University of Technology
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (6/6 displayed)
- 2020Strain Measurements in Free Tube Hydroforming Processcitations
- 2019A New Approach to Experimental Testing of Sheet Metal Formability for Automotive Industrycitations
- 2019Application of Two Advanced Vision Methods Based on Structural and Surface Analysesto Detect Defects in the Erichsen Cupping Testcitations
- 2017Determination of the formability limits for Grade 1 titanium sheet by means of ALSAD methodcitations
- 2016Extended evaluation of Erichsen cupping test results by means of laser specklecitations
- 2014Assessment of Erichsen Cupping Test Results by Means of Laser Speckles
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article
Extended evaluation of Erichsen cupping test results by means of laser speckle
Abstract
Erichsen cupping test has usually been used to determine the height of the cup at the moment of sheet metal fracture, defined as the Erichsen Number IE. The paper presents a proposal of using Erichsen cupping test to determine the additional parameter – the height of the cup LN-IE at the moment of localized necking in sheet metal, which usually precedes fracture of sheet metal. For this purpose, a method of localized necking detection wasdeveloped. It is based on the phenomenon of laser speckle. The results of height measurements were presented for three different grades of sheet metals used in the automotiveindustry: 5754 H22 aluminum alloy, DC04 deep drawing steel, and Dogal 800DP high strength steel. The differences in cup heights at the moments of localized necking (LN-IE) and fracture (IE) of the tested sheet metals were in the range of 0–8%.