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1. Introduction Composite Overwrapped Pressure Vessels (COPVs) are widely used in aerospace, automotive, and energy applications due to their high strength-to-weight ratio, corrosion resistance, and superior fatigue performance compared to conventional metallic pressure vessels. A typical COPV consists of a thin metallic liner, primarily responsible for leak tightness, and an external composite overwrap that carries the majority of the pressure-induced loads. This report presents a detailed finite element–based reliability and failure study of a composite overwrapped pressure vessel using ANSYS Workbench. The analysis focuses on understanding the stress distribution, deformation behavior, and failure margins of the composite laminate and aluminum liner under internal pressure loading. 2. Objectives of the Study The primary objectives of this study are: To understand the structural configuration of a composite overwrapped pressure vessel. To perform stress and deformati...

1. Problem Definition This study investigates how a bicycle frame behaves structurally under typical rider loads. Using  ANSYS Static Structural , the goal is to evaluate stress, deformation, and material performance to determine which material;  structural steel, aluminium, or assumed carbon fibre  offers the best combination of stiffness, durability, and weight efficiency for the same frame geometry. The analysis also identifies critical stress regions, explains the physical reasons behind them, and provides design recommendations for improving real-world frame performance. 2. Simulation Setup 2.1 Geometry and Constraints The bicycle frame geometry was kept constant for all cases. The supports were applied at the wheel axles as follows: Front axle: fixed in Y and Z; free in X Rear axle: fully fixed in X, Y, and Z These constraints simulate a rigid wheel–ground interaction without suspension compliance. 2.2 Loading Scenarios A 100 k...