Finite Element Modeling of Stamp Forming Process on Thermoplastic-Based Fiber Metal Laminates at Elevated Temperatures

Xiaocen Dou¹, Sivakumar Dhar Malingam², Jae Nam³, Shankar Kalyanasundaram³

¹Shanghai R & D Centre, Hyundai Heavy Industries, Shanghai, China.
²Center of Advanced Research on Energy, Technical University of Malaysia Malacca, Durian Tunggal, Malaysia.
³Research School of Engineering, The Australian National University, Canberra, Australia.

DOI: 10.4236/wjet.2015.33C037                

Abstract

This paper investigated stamp forming performance of two aluminum-based Fiber-metal laminates (FMLs) with different fiber-reinforced composites using finite element analysis. Given the inherent thermal-dependent properties of fiber-reinforced polypropylene, the effect of elevated temperature on its forming behavior is worthy of concern. Furthermore, the elevation in temperature also influences the bonding within the constituent lamina. Both factors were integrated in the modelling. By investigating the through-thickness strain evolution throughout the stamping process, the forming mode of each layer, as well as their interactions, were better understood. Results suggested that the flow of matrix and the rotation at the intersections of fiber strands can be promoted at elevated temperature, which transforms the forming performance of FMLs close to that of monolithic aluminum. These results propose means to improve the forming performance of FMLs.

Keywords

Fiber Metal Laminates, Stamp Forming, Finite Element Modeling

Conflicts of Interest

The authors declare no conflicts of interest.

References

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