A comparative study on the GLARE stamp forming behavior using cured and non-cured preparation followed by hot-pressing

Demand for lightweight materials with structural integrity is necessary due to the increased global concern about air pollution and excessive fuel consumption. Fiber metal laminates (FMLs) have the potential to find the perfect balance between weight reduction and structural reliability, which includes improved damage tolerance. However, the fiber used in FMLs has limited elongation, and existing forming approaches are not qualified enough to produce small and deep laminate components, especially for mass production. In this research paper, an investigation has been carried out to understand the laminate system's failure mode, eliminate defects, and improve drawability. A comparative study has been carried out for producing small parts made of GLARE (glass laminated-reinforced epoxy) material, using the conventional cured laminate and non-cured laminate with a hot-pressing method. The effect of these two methods on the GLARE forming behavior has been discussed. The numerical and experimental results of the new approach were compared with the conventional method. Results exhibit the positive effect of this approach on the quality of the formed cups and depth. Finally, this investigation can enhance the FMLs, and GLARE part applications compared to the conventional methods.

Automated summary

The demand for lightweight materials with structural integrity is growing due to global concerns over air pollution and excessive fuel consumption. Fiber metal laminates (FMLs) show promise in balancing weight reduction and structural reliability, despite limitations in elongation of fibers and existing forming approaches. Research has focused on understanding failure modes, defect elimination, and improving drawability of laminate systems. Comparative studies have been conducted on GLARE material forming behavior using conventional and non-cured laminate methods, showing positive effects on formed cups and depth compared to conventional methods. This investigation aims to enhance FMLs and GLARE part applications over traditional methods.