Experimental investigation of the fluid-structure interaction during deep drawing of fiber metal laminates in the in-situ hybridization process

Abstract. Matrix accumulations, buckling and tearing of fibers metal sheets are common defects in the deep drawing fiber laminates. The previously developed in-situ hybridization process is a single-step method for manufacturing three-dimensional laminates (FML). During FML, low-viscosity thermoplastic matrix injected into dry glass fabric layer using resin transfer molding process. concurrent forming injection results strong fluid-structure interaction, which not yet fully understood. To gain better understanding this interaction identify possible adjustments to improve process, an experimental form-filling investigation was conducted. Using double dome geometry, infiltration behavior were investigated at different depths with full, partial, no injection. Surface strain measurements blanks, thickness fiber-reinforced polymer layer, optical analyses quality used evaluate results.