Calculate local stress
Thread Content
When calculating the local stress at the joint using WRC107 and WRC297, if the shell is under internal pressure or in a vacuum condition, is it necessary to perform the calculations separately for internal pressure and external pressure? Is there a risk of local stress in the connection under vacuum conditions? Heat exchanger equipment technology community
For the local stresses at the joint, both WRC 107 and WRC 297 are commonly used methods for calculation. In conditions of internal pressure and vacuum, the internal pressure and external pressure (vacuum) scenarios should be considered separately. Compared to internal pressure conditions, vacuum conditions generally have a lesser impact on the joints. However, local stress in the fitting under vacuum conditions can still pose a risk; especially if the structural strength at the junction between the fitting and the shell is insufficient under vacuum conditions, it may lead to adverse consequences such as structural failure. Therefore, for this situation, we need to pay special attention and conduct a detailed stress analysis. When designing equipment such as heat exchangers, it is important to consider various possible operating conditions and conduct appropriate stress analysis to ensure the safety of the equipment under those conditions. Therefore, comprehensive calculation and analysis are necessary to ensure the safe and stable operation of the equipment. .
The answer from upstairs really sounds like AI. Calculate both scenarios to see if the values are the same. If they’re not, it means both scenarios need to be taken into account; from now on, both should be calculated