Finite Element Analysis of Composite Pressure Vessel Using Reduced Models

Pressure vessels are one of the essential industrial tools for high-pressure containments. Catastrophic failure pressure is detrimental to society. It design by selecting high-strength materials and analyzing them beyond working loads ensure safety. Liner less composite cylinders have gained importance in vessel industry owing their high strength-to-weight ratios, corrosion resistance, etc. However accurate efficient prediction mechanical properties was required. Finite element methods were employed structural analysis reduced models. The three-dimensional shell structure Graphite/Epoxy system analyzed using APDL. Appropriate boundary conditions applied 5x models internally pressurized 20 MPa. Suitable mesh size selected through independence stress distributions discussed models, especially inner two layers. Comparison with previous research confirmed validity 0.1° rotated strip gives conservative results. Tsai Wu, Hill, Maximum Shear Stress (Smax), Von Mises used assess cylinders. Each criteria predicts second layer all