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Volume 14
Issue 3
10.3390/met14030268
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Article

Hybrid Single Lap Joints between 3D Printed Titanium Lattices and CFRP Composites: Experimental and Numerical Insights

by
Andrea Corrado
1,*,
Raffaele De Biasi
1,
Daniele Rigotti
1,
Fabrizio Stecca
2,
Alessandro Pegoretti
1 and
Matteo Benedetti
1,*
1
Department of Industrial Engineering, University of Trento, 38123 Trento, Italy
2
Novation Tech S.P.A., 31044 Montebelluna, Italy
*
Authors to whom correspondence should be addressed.
Metals 2024, 14(3), 268; https://doi.org/10.3390/met14030268
Submission received: 3 January 2024 / Revised: 13 February 2024 / Accepted: 20 February 2024 / Published: 23 February 2024
(This article belongs to the Section Metal Failure Analysis)
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Abstract

In the contemporary emphasis on weight reduction, the utilization of advanced materials like Carbon Fiber Reinforced Polymers (CFRPs) and cutting-edge technologies such as 3D printing of metal is increasingly crucial. This study delves into the junction of CFRP and titanium, aiming to conduct Single Lap shear tests on specimens featuring a co-lamination of long fiber composite onto a metal lattice structure. Different specimens with different dimensions of the Simple Cubic (SC) unit cell were subjected to testing. A microscope investigation facilitated an exploration of junction failure and epoxy resin infiltration into the lattice substrate. Employing an efficient 2D Finite Element Model, the homogenization process yielded theoretical models underestimating the Young Modulus by approximately 10% compared to real specimens. Despite the challenges in bonding titanium and CFRP, the novel junction exhibited a shear stress of 17.25 MPa, which is nearly equivalent to those of a co-lamination between sandblasted steel and CFRP, that is 17.15 MPa.
Keywords: Hybrid Junctions; epoxy infiltration; carbon fiber; titanium; lattice infiltration; simple cubic cell Hybrid Junctions; epoxy infiltration; carbon fiber; titanium; lattice infiltration; simple cubic cell

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MDPI and ACS Style

Corrado, A.; De Biasi, R.; Rigotti, D.; Stecca, F.; Pegoretti, A.; Benedetti, M. Hybrid Single Lap Joints between 3D Printed Titanium Lattices and CFRP Composites: Experimental and Numerical Insights. Metals 2024, 14, 268. https://doi.org/10.3390/met14030268

AMA Style

Corrado A, De Biasi R, Rigotti D, Stecca F, Pegoretti A, Benedetti M. Hybrid Single Lap Joints between 3D Printed Titanium Lattices and CFRP Composites: Experimental and Numerical Insights. Metals. 2024; 14(3):268. https://doi.org/10.3390/met14030268

Chicago/Turabian Style

Corrado, Andrea, Raffaele De Biasi, Daniele Rigotti, Fabrizio Stecca, Alessandro Pegoretti, and Matteo Benedetti. 2024. "Hybrid Single Lap Joints between 3D Printed Titanium Lattices and CFRP Composites: Experimental and Numerical Insights" Metals 14, no. 3: 268. https://doi.org/10.3390/met14030268

APA Style

Corrado, A., De Biasi, R., Rigotti, D., Stecca, F., Pegoretti, A., & Benedetti, M. (2024). Hybrid Single Lap Joints between 3D Printed Titanium Lattices and CFRP Composites: Experimental and Numerical Insights. Metals, 14(3), 268. https://doi.org/10.3390/met14030268

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