PSI - Issue 54

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Wojciech Skarka et al. / Procedia Structural Integrity 54 (2024) 490–497 Author name / Structural Integrity Procedia 00 (2019) 000 – 000

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Table 2. Sandwich optimization methodology

Case

Description

Optimization methodology

1 T-joint with central monolithic panel: baseline model with the sandwich base foam drop off. 2 T-joint with central monolithic panel: baseline model with the sandwich base foam drop off and web having circular cut. 3 T-joint with foam core: both web and base are made of sandwich composite panels with a foam core. 4 T-joint with foam central insert: the core of the central part of the sandwich base is made of honeycomb (Blue region) 5 T-joint with localized foam insert: the sides of the core of the sandwich base are made of honeycomb with natural fiber (Blue region). 6 T-joint with foam and foam core: the core of the web panel is made of foam while the base core is made of honeycomb with natural fiber.

2.3. Construction of composite T-joint parts The construction of the T-joint consist of three parts such as web panel, stringers, and base plate. These three parts are fabricated with three distinct materials. The fabrication of the bio composite is shown in Fig.2. ➢ Web panel: Web panel consist of natural fiber sandwich with dimensions of 150 x 260 mm. ➢ Stingers: L- shape stingers having natural fiber with epoxy resin (laminate) ➢ Base panel: The base panel made up with natural fiber sandwich with different shape 180 x 260 mm.

Fig. 2. Construction of bio-composite layout for T-Joints