Recueil de mécanique
Volume 7, Numéro 1, Pages 667-683
2025-02-24
Macro-mechanical Analysis Of A Bio Sandwich Application For Cylinder Under Pressure
Authors : Habbar Ghania . Hocine Abdelkader . Maizia Abdelhakim . Ribeiro João .
Abstract
Before focusing on the design of eco-sandwich pipes under hydrogen pressure, the current study centered on analyzing a structural component using the macromechanical approach. This approach is rooted in sandwich laminated theory, taking into account transverse shear considerations. The major purpose of this paper is to assess the possible uses of bio-fibers to replace glass synthetic fibers that are commonly used in sandwich pipes under pressure. A stress comparison is developed through the thickness of stacking sequence of sandwich element [-∅ /+∅ /core/+∅ / -∅] between four biocomposite materials based on PALF, Alfa, Jute, and Palm natural fibers and a synthetic composite based on Glass fibers. A failure analysis based on the TSAI-WU criterion is presented, and it is as a function of the increment in internal pressure. The mechanical properties have an influence on the behavior of composite sandwiches based on synthetic or natural fibers. The macromechanical analysis is a good tool to locate the layer of the lower or upper skin that is most stressed, enabling a failure analysis and suggesting reinforcement solutions.
Keywords
Natural fibers ; Skin layer ; Bio-sandwich ; Analytical methods ; Macro-mechanical
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