Popp J, Busch M, Hausotte T, Drummer D (2023)
Publication Language: English
Publication Type: Journal article, other
Publication year: 2023
Book Volume: 30
Journal Issue: 1
URI: https://www.degruyter.com/document/doi/10.1515/secm-2022-0165/html
Continuous fiber-reinforced thermoplastics (CFRTs) can in combination
with high-strength metals offer characteristics that cannot be achieved
with mono-material parts. One possible example is the combination of
locally high-temperature resistance in the metal component with superior
weight-related mechanical properties due to the CFRT component. This
approach requires a reliable and durable joining technology, which
considers the material-specific properties and allows to exploit the
full potential of CFRT/metal hybrid parts. A promising approach in the
field of CFRT/metal joining is the use of metallic pins, which can be
embedded in the locally heated CFRT component to create a form-fitting
joint. In the current state of the art, primarily single-pins are
investigated and characterized: especially the distinct fiber
orientation in the direct pin pressing process is only described for
single-pin joints. Behind this background, the present study aims at
creating an understanding of the fiber orientation mechanism for
multi-pin arrays. Therefore, in the scope of this study, unidirectional
reinforced glass fiber/polypropylene samples are joined via direct pin
pressing and infrared heating with different 1D and 2D multi-pins arrays
with different pin-diameters, spacing and pin distributions. The
resulting joint morphology is consequently analyzed using
micro-computer-tomography. Based on the performed investigations, a
model for the fiber displacement mechanism is proposed, and the first
recommendations for the design of fiber-friendly multi-pin joints with
unidirectional reinforcements are given. It showed that especially
pin-spacing in fiber orientation in dependency of the pin diameter is
critical for a fully reconsolidated joint quality, and it is suggested
that a pin-offset in the fiber direction is beneficial for a
fiber-friendly joining process.
APA:
Popp, J., Busch, M., Hausotte, T., & Drummer, D. (2023). Fiber Orientation in continuous fiber reinforced thermoplastics/metal hybrid joining via multi-pin arrays. Science and Engineering of Composite Materials, 30(1). https://doi.org/10.1515/secm-2022-0165
MLA:
Popp, Julian, et al. "Fiber Orientation in continuous fiber reinforced thermoplastics/metal hybrid joining via multi-pin arrays." Science and Engineering of Composite Materials 30.1 (2023).
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