A Review: Fiber Reinforced Polymer cylindrical shells subject to combined loading condition of Torsion and External Pressure

Abstract

This review paper aims to thoroughly examine how cylindrical shells made of fiber-reinforced polymer (FRP) behave when they are twisted and pushed from the outside at the same time. The growing utilization of FRP cylindrical shells in diverse industries has sparked interest, yet their performance under combined loading remains inadequately explored. The aim of this study is to present a thorough overview of the existing research landscape on this subject, encompassing experimental investigations and theoretical analyses. The review extensively covers key findings, acknowledges existing limitations, identifies gaps in current understanding, and proposes avenues for future research that could enhance both insight and design capabilities. Through a detailed examination The response of FRP cylindrical shells to concurrent torsion and external pressure, this review contributes significantly to the advancement of more effective and dependable structural design practices. This study demonstrated that the research on this area spanning decades. It emphasizes diverse materials, loading conditions, and research methods. Key themes include initial imperfections' influence on non-linear responses and buckling behavior, notably in thin-walled shells. Recent focus has been on imperfection sensitivity and their integration into design and optimization. Notably, composite materials like CFRP and FRP are crucial. Future research could delve into material effects, imperfection sensitivity, innovative design, and optimization to further advance practical applications' understanding and design techniques.