The analysis is run once again with all the loads and the internally adjusted Pre-load for each Bolt Connectorįrom an absolutely rigorous standpoint, the Pre-load should not be adjusted based on a first run with no load included at all.As a matter of fact, some loads could have been present when the bolts were actually tightened and they should be included in the first run. Such loads will typically include Gravity, but can also include all the loads representing the state of stress that was present when the bolts were tightened: this could potentially include some Forces, Pressures, thermal loads, Spring Pre-loads, etc. It is not currently possible to select which should be included. In nonlinear analysis, the Pre-load is solved during the first time step of the analysis, and its value is taken as is and never adjusted by the program. The bolt is prescribed the same reference temperature at zero strain as the rest of the assembly (T0), which is defined in the static study’s Thermal/Flow effects tab in the Properties dialog box.
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