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In the calculation of horizontal vessels, there are three design aspects, one. It is the verification of axial stress: the axial stress caused by internal pressure and the axial stress caused by bending moment combine together, which is easy to understand. It is the verification of shear stress, three. It is a check of the circumferential stress. May I ask: What force or moment causes shear stress, and what force or moment causes circumferential stress? What are the directions of the shear stress and the circumferential stress? It seems to me that according to the standards, both the direction of the circumferential stress and the direction of the shear stress are along the circumferential direction; I’m not sure if this is correct In the verification of the 3-directional stress, why wasn’t the circumferential membrane stress caused by internal pressure included? (In the verification of axial stress, there is axial stress caused by internal pressure.) Everyone is welcome to discuss! Advice from an expert
I suggest the original poster take a look at \"Process Equipment Design\". Here are some of my humble opinions: 1. Shear stress is caused by internal pressure, while circumferential stress is caused by the binding forces between materials; 2. The shear stress direction is radial, while the circumferential stress direction is circumferential ; 3. Internal pressure is not the main factor causing circumferential stress, so it is not considered.
Reply to 2# keazson: Shear stress is caused by external shear forces, axial stress results from internal pressure and bending moments, while circumferential stress is induced by the reaction forces at the supports as well as the circumferential membrane stress due to internal pressure. That’s my personal opinion
Study the book on process equipment design carefully; it has everything. . . Hehe
I suggest the original poster refer to the book \"Training Materials for Pressure Vessel Engineers\", which provides detailed explanations.
Okay, thank you all, hehe!