Experimental validation of an equivalent modelling strategy for clinch configurations

Breda, Andreas; Coppieters, Sam; Velde, A. Van de; Debruyne, Dimitri

doi:10.1016/j.matdes.2018.07.035

Cited by 8 publications

(3 citation statements)

References 33 publications

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“…The extrapolation of the yield curve can be done e.g. with the Swift model [25], the Voce model [26], the Hollomon model [10] or the Cowper-Symonds model [27]. The Swift and Voce model are the most commonly used in the more recent publications.…”

Section: Finite Element Analysismentioning

confidence: 99%

Analysis of the interactions between joint and component properties during clinching

Steinfelder

Acksteiner

Guilleaume

et al. 2022

Prod. Eng. Res. Devel.

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Clinching is a joining process that is becoming more and more important in industry due to the increasing use of multi-material designs. Despite the already widespread use of the process, there is still a need for research to understand the mechanisms and design of clinched joints. In contrast to the tool parameters, process and material disturbances have not yet been investigated to a relatively large extent. However, these also have a great influence on the properties and applicability of clinching. The effect of process disturbances on the clinched joint are investigated with numerical and experimental methods. The investigated process variations are the history of the sheets using the pre-hardening of the material, different sheet thicknesses, sheet arrangements and punch strokes. For the consideration of the material history, a specimen geometry for pre-stretching specimens in uniaxial tension is used, from which the pre-stretched secondary specimens are taken. A finite element model is set up for the numerical investigations. Suitable clinching tools are selected. With the simulation, selected process influences can be examined. The effort of the numerical investigations is considerably reduced with the help of a statistical experimental design according to Taguchi. To confirm the simulation results, experimental investigations of the clinch point geometry by using micrographs and the shear strength of the clinched joint are performed. The analysis of the influence of difference disturbance factors on the clinching process demonstrate the importance of the holistic view of the clinching process.

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Section: Finite Element Analysismentioning

confidence: 99%

Analysis of the interactions between joint and component properties during clinching

Steinfelder

Acksteiner

Guilleaume

et al. 2022

Prod. Eng. Res. Devel.

View full text Add to dashboard Cite

show abstract

“…During the calibration procedure the local behaviour of the initially rigid equivalent model is softened elastically and plastically, until the global behaviour matches the experimental benchmark experimental results. In this way, the equivalent joint model is calibrated and can be used for multi-joint applications [12].…”

Section: Equivalent Model Calibration Proceduresmentioning

confidence: 99%

“…It was shown that the latter approach enables to accurately reproduce the force-displacement behaviour under quasi-static mixed mode loading for a single joint. Breda et al [12] validated this equivalent clinch methodology for multi-joint configurations on lab coupon scale experiments and as well on a full-scale industrial test case involving a complex load distribution. The global response could be accurately reproduced by the proposed equivalent model.…”

Section: Introductionmentioning

confidence: 99%