| People | Locations | Statistics |
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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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Köhler, D.
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Topics
Publications (12/12 displayed)
- 2024In-situ computed tomography and transient dynamic analysis – failure analysis of a single-lap tensile-shear test with clinch pointscitations
- 2024In-situ computed tomography analysis of the failure mechanisms of thermomechanically manufactured joints with auxiliary joining elementcitations
- 2023Comparison of ex- and in-situ investigations of clinched single-lap shear specimenscitations
- 2023Numerical and experimental investigations of piercing fibre-reinforced thermoplasticscitations
- 2022Clinching in In Situ CT—A Novel Validation Method for Mechanical Joining Processescitations
- 2022Characterisation of lateral offsets in clinch points with computed tomography and transient dynamic analysiscitations
- 2022Computed tomography investigation of the material structure in clinch joints in aluminium fibre-reinforced thermoplastic sheetscitations
- 2021A Method for Characterization of Geometric Deviations in Clinch Points with Computed Tomography and Transient Dynamic Analysiscitations
- 2021Clinching in In-situ CT – Experimental Study on Suitable Tool Materialscitations
- 2021In situ computed tomography – Analysis of a single-lap shear test with clinch pointscitations
- 2020Experimental and numerical studies on the deformation of a flexible wire in an injection moulding processcitations
- 2020Clinching in in-situ CT—A numerical study on suitable tool materialscitations
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document
Comparison of ex- and in-situ investigations of clinched single-lap shear specimens
Abstract
Force-displacement measurements and macrosections are commonly used methods to validate numerical models of clinching processes. However, these ex-situ methods often lead to springback of elastic deformations and crack-closing after unloading. In contrast, the in-situ computed tomography (CT) can provide three-dimensional images of the clinching point under loading conditions. So far, the quantity of elastic springback that causes measuring deviations between in- and ex-situ measurements is not determined. In this paper, a method is described to quantitatively compare the results of in-situ CT, ex-situ CT and CT scans of cut specimens, which are prepared for macrosectioning, among each other. The method is applied to a single-lap shear test of two clinched aluminum sheets. Here, the test is conducted to specific process steps, then the specimen is CT scanned in-situ (during loading) and ex-situ (after unloading). Subsequently, the specimens are cut for macrosectioning and CT scanned. Finally, the outer contours and the interfaces of cross section images are determined by digital image analysis and the deviations over the clinching point between ex- and in-situ methods are calculated.