Preprint Article Version 1 This version not peer reviewed

Investigation into Forming Limits of Multi-Layer Hybrid Sheets with different Materials in the Middle

Version 1 : Received: 4 December 2017 / Approved: 4 December 2017 / Online: 4 December 2017 (06:54:03 CET)

How to cite: Liu, S.; Lang, L.; Guan, S.; Alexandrov, S.; Zeng, Y. Investigation into Forming Limits of Multi-Layer Hybrid Sheets with different Materials in the Middle. Preprints 2017, 2017120017 (doi: 10.20944/preprints201712.0017.v1). Liu, S.; Lang, L.; Guan, S.; Alexandrov, S.; Zeng, Y. Investigation into Forming Limits of Multi-Layer Hybrid Sheets with different Materials in the Middle. Preprints 2017, 2017120017 (doi: 10.20944/preprints201712.0017.v1).

Abstract

Fiber-metal laminates (FMLs) such as Kevlar reinforced aluminum laminate (ARALL), Carbon reinforced aluminum laminate (CARALL), and Glass reinforced aluminum laminate (GLARE) offer great potential for weight reduction applications in automobile and aerospace construction. In order to investigate the feasibility for utilizing such materials in the form of laminates, sheet hydro-bulging tests are studied under the condition of uniform blank holder force for three-layered aluminum and aluminum-composite laminates using orthogonal carbon and Kevlar as well as glass fiber in the middle. The experimental results validate the finite element results and they exhibited that the forming limit of glass fiber in the middle is the highest among the studied materials, while carbon fiber material performs the worst. Furthermore, the crack modes are different for the three kinds of fiber materials investigated in the research. This study provides fundamental guidance for the selection of multi-layer sheet materials in the future manufacturing field.

Subject Areas

fiber-metal laminates (FMLs); multilayer sheet bulging; forming limits; numerical simulation; crack modes

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