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Compressive pressure between interacting materials
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[QUOTE="jrmichler, post: 6221611, member: 638574"] Step 1: Given the exact clearance, calculate the temperature at which the cylinder contacts the tube. Step 2: Search [B]Interference fits[/B] and [B]Shrink fits[/B]. This is a topic in advanced strength of materials. The equations can be found Roark's Formulas for Stress and Strain. You do not need the newest edition, the older editions also have the equations. There is a discussion of shrink fits in Advanced Mechanics of Materials by Seely and Smith, but that book is out of print. There are other books in print that discuss shrink fits, all with the title Advanced Mechanics of Materials. The equations are about radial strains, stresses, and pressures. Longitudinal stresses and strains are also present, but I have never seen equations for them. Normal procedure is to calculate only radial stresses, strains, and pressure. If the outer tube wall is thin relative to the diameter, then the calculation becomes much easier. Treat the tube as a thin wall cylinder, assume zero radial strain in the inner cylinder, and use the thin wall tube equation to calculate the radial pressure. If the fabric liner is radially soft compared to the inner cylinder and outer tube, then the calculation is easier yet. Calculate the relative radial displacement from thermal expansion, the radial strain in the fabric, and get the stress from that. [/QUOTE]
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