Influence of layer thickness variations on the structural behaviour of optimised fibre reinforced plastic parts
Franz M, Schleich B, Wartzack S (2019)
Publication Language: English
Publication Type: Conference contribution, Conference Contribution
Publication year: 2019
Pages Range: 26-31
Conference Proceedings Title: Procedia CIRP Volume 85
Event location: Sheffield
URI: http://www.sciencedirect.com/science/article/pii/S2212827119312946
DOI: 10.1016/j.procir.2019.09.034
Open Access Link: http://www.sciencedirect.com/science/article/pii/S2212827119312946
Abstract
Fibre reinforced plastics (FRP) are considered as a modern high-tech material. The enormous lightweight potential, especially of carbon fibre reinforced plastics, accelerates its spreading in many industrial applications. However, as good as the lightweight potential of FRP is, as difficult is the optimal use in products because of its anisotropic material properties. Recently, methods considering the anisotropic material behavior during the product development process have been developed. These result in optimized nominal laminate layouts with defined laminate parameters like fibre orientation, ply thickness and ply stack-up order. Yet, during the manufacturing process, variations of these parameters, compared to the nominal design, occur. The variations result in asymmetric laminates, which causes couplings in the stiffness matrix and consequently undesired deformations. The effects of varying laminate design parameters have so far mainly been investigated with focus on manufacturing activities. However, to support the design engineer in considering the influence of varying laminate parameters on product behavior, this paper studies the effects on the structural behavior of optimized FRP-parts. The main novelty and contribution of the paper can be found in providing a new approach for the consideration of uncertainties in the ply thickness on FRP parts with optimized fibre layout. For this purpose, sensitivity analyses are performed with the aim of investigating the importance of the parameters on the structural behavior. With this knowledge, the product developer is able to distinguish between critical and non-critical laminate parameters and consider their variations in the product development process as early as possible.
Authors with CRIS profile
Michael Franz
Chair of Engineering Design
Benjamin Schleich
Chair of Engineering Design
Sandro Wartzack
Chair of Engineering Design
Related research project(s)
How to cite
APA:
Franz, M., Schleich, B., & Wartzack, S. (2019). Influence of layer thickness variations on the structural behaviour of optimised fibre reinforced plastic parts. In Procedia CIRP Volume 85 (pp. 26-31). Sheffield, GB.
MLA:
Franz, Michael, Benjamin Schleich, and Sandro Wartzack. "Influence of layer thickness variations on the structural behaviour of optimised fibre reinforced plastic parts." Proceedings of the 2nd CIRP Conference on Composite Material Parts Manufacturing, Sheffield 2019. 26-31.
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