Applies To Product(s): AutoPIPE, Version(s): V8i Environment: N/A Area: Modeling Subarea: Original Author: Bentley Technical Support Group Thermal Bowing Analysis From the online help: The Load Thermal Bowing command enables the user to calculate thermal bowing separately or included with all or one thermal load case which can cause severe stresses on the piping. Thermal bowing typically occurs when transporting fluid on a partially filled pipe but can also occur in exposed pipes in hot climates where one side of the pipe is exposed to the sun and the other side is in the shade. In this case, the top and bottom of the pipe section can experience a significant temperature differential. This temperature differential causes pipe thermal strains which produce pipe curvature. To simplify the problem, AutoPIPE assumes a linear thermal strain distribution across the pipe. With this assumption residual stresses vanish and only pipe curvature stresses exists. The assumptions in AutoPIPE are: 1. Linear thermal strain distribution 2. Apply only to horizontal or near horizontal pipes with bowing in the local vertical plane 3. Same thermal gradient or temperature change is applied to all pipes selected See Also Bentley AutoPIPE External Links Bentley Technical Support KnowledgeBase Bentley LEARN Server Comments or Corrections? Bentley's Technical Support Group requests that you please submit any comments you have on this Wiki article to the "Comments" area below. THANK YOU!
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