SW6 has been used for more than 20 years, has no one found this problem?
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This post was last posted by yuqinglin876 on 2019-3-20 10:55. An editor colleague used SW6 to calculate a tower, and the result was passed. Later, he discovered a problem with SW6, which showed that it passed but actually failed! As shown in the figure, the cylinder is calculated as follows. should be: 0.9xReLx0.85, the welding joint coefficient 0.85 is missing here, and it actually fails.
should be: 0.9xReLx0.85, the welding joint coefficient 0.85 is missing here, and it actually fails.
What's the meaning? Software is a tool, and the theoretical basis must be understood!
This tool is misleading. If you are not careful, problems may arise.
Take a look at the welding joint coefficient at the head?
It’s 0.85. If it’s 1.0, it’s no problem.
So don’t blindly believe in the results. You still need to read the calculation book carefully.
It should be a basic requirement of the software that the calculation formula is correct. Several people will check the calculation formula in the software.
Errors may occur, so you are responsible for yourself by checking again. Sometimes the result is qualified, but you can also consider whether the result requires adding some safety margin.
This is obviously because you misunderstood SW6, the original poster! Please look at the denominator of the red circle formula in the attachment. SW6 has already considered the welding joint coefficient when actually calculating σT.