Experimental and Numerical Characterization of Spot Welded Hybrid Al/<scp>CFRP</scp>‐Joints on Coupon Level

Schmeer, Sebastian; Balle, Frank; Didi, Mirja; Wagner, Guntram; Maier, Martin; Mitscháng, Peter

doi:10.1002/adem.201300047

Adv Eng Mater

2013

DOI: 10.1002/adem.201300047

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Experimental and Numerical Characterization of Spot Welded Hybrid Al/CFRP‐Joints on Coupon Level

Sebastian Schmeer

Frank Balle

Mirja Didi

et al.

Abstract: This paper presents investigations on induction and ultrasonic spot welded hybrid Al/CFRP‐specimens. Selected results of welded coupon experiments are discussed. Based on this results detailed FE models are developed and validated by comparison of simulation and experiment. Validated simulations are used to analyze stress states within the hybrid spot welds and to understand the failure progress.

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Cited by 2 publications

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Relation Between Interface Geometry and Tensile Shear Strength of Ultrasonically Welded Joints

Arweiler-Böllert,

Liesegang,

Beck

et al. 2023

J. of Materi Eng and Perform

Self Cite

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The reliable use of ultrasonic metal welding requires a thorough understanding of the relevant bonding mechanisms. This article presents an approach to systematically investigate the relation between the mechanical properties and the interface of selected Al/Cu and Al/GFRP joints. The hypothesis is that the microstructure and tensile shear strength of the specimen can be related to their interface properties presented by contact stiffness and damage initiation traction. For this purpose, the mentioned hybrid material systems were ultrasonically welded using specific parameters to achieve defined levels of mechanical joint strengths. Micro sections and fracture surfaces were characterized to identify the interface geometry at certain strength levels. The main findings were different shares of bonded areas in the interface and characteristic micro geometries. Microscale finite element models of representative samples were developed to determine the stress and deformation behavior in the interface under tensile shear load and to compare the influence of the interface geometry on contact conditions to a simplified model. The simulations provide information about the influence of different damage initiation tractions and geometrical characteristics in the joints’ interfaces, as well as their contribution to the overall joint strength. For prospective industrial applications, they can serve as basis for further development of a contact model on component scale.

show abstract

Relation Between Interface Geometry and Tensile Shear Strength of Ultrasonically Welded Joints

Arweiler-Böllert,

Liesegang,

Beck

et al. 2023

J. of Materi Eng and Perform

Self Cite

View full text Add to dashboard Cite

show abstract

Friction-based processes for hybrid multi-material joining

Lambiase

Balle

Blaga

et al. 2021

Composite Structures

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Experimental and Numerical Characterization of Spot Welded Hybrid Al/CFRP‐Joints on Coupon Level

Cited by 2 publications

References 6 publications

Relation Between Interface Geometry and Tensile Shear Strength of Ultrasonically Welded Joints

Relation Between Interface Geometry and Tensile Shear Strength of Ultrasonically Welded Joints

Friction-based processes for hybrid multi-material joining

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