Pressure Vessel Design: Master Cylindrical Shell Thickness Calculations (ASME & EN 13445)

Learn the fundamental principles and formulas used to calculate the thickness of cylindrical shells, the core component of most pressure equipment like tanks, heat exchangers, and boilers. In this video, we dive deep into: The Science of Stress: Why the circumferential (hoop) stress is the governing factor in design, being twice as high as longitudinal stress. International Codes & Formulas: We break down the standard calculation methods, including: ASME Section VIII Division 1 (UG-27) for thin-walled vessels. EN 13445-3, CODAP 2015, and AD 2000-Merkblatt standards. The Tunisian Standard (NT) and its alignment with international logic. Beyond the Formula: Learn how to calculate the final nominal thickness by accounting for corrosion allowance (CA), mill tolerances, and erosion factors. Inspector Checklist: Key points for verifying calculation notes, such as choosing the correct joint efficiency (E or z) based on radiographic testing (RT) levels. Practical Example: A step-by-step walkthrough of a propane tank calculation to determine the final commercial thickness required. Whether you are an engineer, a student, or a pressure vessel inspector, this guide provides the essential technical knowledge for safe and compliant design