Influence of the pin diameter to spacing ratio in metal/composite joints joined via metallic pin structures

Joining metal components with thermoplastic composites via the embedding of pin structures is a promising novel mechanical joining technology to create lightweight hybrid components. In the current state of the art, it is not understood which influence the pin size and pin arrangement in a multi pin...

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Main Authors: Julian Popp, Jan Gavelek, David Römisch, Marion Merklein, Dietmar Drummer
Format: Article
Language:English
Published: Elsevier 2025-12-01
Series:Journal of Advanced Joining Processes
Subjects:
Online Access:http://www.sciencedirect.com/science/article/pii/S2666330925000470
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author Julian Popp
Jan Gavelek
David Römisch
Marion Merklein
Dietmar Drummer
author_facet Julian Popp
Jan Gavelek
David Römisch
Marion Merklein
Dietmar Drummer
author_sort Julian Popp
collection DOAJ
description Joining metal components with thermoplastic composites via the embedding of pin structures is a promising novel mechanical joining technology to create lightweight hybrid components. In the current state of the art, it is not understood which influence the pin size and pin arrangement in a multi pin array has on the mechanical performance of the created joints. In the scope of the present study different pin arrays have been used to create joints between stainless steel and unidirectionally reinforced thermoplastic composites. Thereby the pin density, which describes the fraction of the joint surface is occupied by pin structures, in the joint is kept constant and the pin size and pin arrangement has been varied. It shows that a higher number of smaller pins leads to better mechanical performance under both shear as well as normal testing load. Furthermore, an asymmetric pin arrangement, where one out of two pin rows is offset perpendicular to the fiber orientation, increased joint strength. The achieved shear strength of the samples reaches up to 10.8 MPa while the achieved normal strength is significantly lower at a maximum of 2.3 MPa.
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institution DOAJ
issn 2666-3309
language English
publishDate 2025-12-01
publisher Elsevier
record_format Article
series Journal of Advanced Joining Processes
spelling doaj-art-03411f22d3664267833655c4db6fbbb02025-08-20T03:15:03ZengElsevierJournal of Advanced Joining Processes2666-33092025-12-011210032610.1016/j.jajp.2025.100326Influence of the pin diameter to spacing ratio in metal/composite joints joined via metallic pin structuresJulian Popp0Jan Gavelek1David Römisch2Marion Merklein3Dietmar Drummer4Friedrich-Alexander-Universität Erlangen-Nürnberg, Chair of Polymer Technology, Germany; Corresponding author.Friedrich-Alexander-Universität Erlangen-Nürnberg, Chair of Polymer Technology, GermanyFriedrich-Alexander-Universität Erlangen-Nürnberg, Chair of Manufacturing Technology, GermanyFriedrich-Alexander-Universität Erlangen-Nürnberg, Chair of Manufacturing Technology, GermanyFriedrich-Alexander-Universität Erlangen-Nürnberg, Chair of Polymer Technology, GermanyJoining metal components with thermoplastic composites via the embedding of pin structures is a promising novel mechanical joining technology to create lightweight hybrid components. In the current state of the art, it is not understood which influence the pin size and pin arrangement in a multi pin array has on the mechanical performance of the created joints. In the scope of the present study different pin arrays have been used to create joints between stainless steel and unidirectionally reinforced thermoplastic composites. Thereby the pin density, which describes the fraction of the joint surface is occupied by pin structures, in the joint is kept constant and the pin size and pin arrangement has been varied. It shows that a higher number of smaller pins leads to better mechanical performance under both shear as well as normal testing load. Furthermore, an asymmetric pin arrangement, where one out of two pin rows is offset perpendicular to the fiber orientation, increased joint strength. The achieved shear strength of the samples reaches up to 10.8 MPa while the achieved normal strength is significantly lower at a maximum of 2.3 MPa.http://www.sciencedirect.com/science/article/pii/S2666330925000470Hybrid joiningThermoplastic compositesPinContinuous fiber reinforced thermoplasticGlass fiber
spellingShingle Julian Popp
Jan Gavelek
David Römisch
Marion Merklein
Dietmar Drummer
Influence of the pin diameter to spacing ratio in metal/composite joints joined via metallic pin structures
Journal of Advanced Joining Processes
Hybrid joining
Thermoplastic composites
Pin
Continuous fiber reinforced thermoplastic
Glass fiber
title Influence of the pin diameter to spacing ratio in metal/composite joints joined via metallic pin structures
title_full Influence of the pin diameter to spacing ratio in metal/composite joints joined via metallic pin structures
title_fullStr Influence of the pin diameter to spacing ratio in metal/composite joints joined via metallic pin structures
title_full_unstemmed Influence of the pin diameter to spacing ratio in metal/composite joints joined via metallic pin structures
title_short Influence of the pin diameter to spacing ratio in metal/composite joints joined via metallic pin structures
title_sort influence of the pin diameter to spacing ratio in metal composite joints joined via metallic pin structures
topic Hybrid joining
Thermoplastic composites
Pin
Continuous fiber reinforced thermoplastic
Glass fiber
url http://www.sciencedirect.com/science/article/pii/S2666330925000470
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