Question:

How do I change the joint efficiency in the COMPRESS calculations?

Answer:

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COMPRESS applies the rules of paragraphs UW-11 and UW-12 to determine the joint efficiency for buttwelds based on the selected radiography for each component. 

It is best to let COMPRESS determine the joint efficiency based on the rules that are built into the program. However, the need to specify a particular joint efficiency may arise. The User-Defined option in COMPRESS accommodates for this. Select User Defined from the radiography selection list and new fields will appear where a joint efficiency and description may be entered.