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I see this all of the time. There is no one magical method that can quickly determine the integrity or remaining life of a pressure vessel nozzle unless there are calculations present that indicate the maximum acceptable corrosion allowance. There are just too many factors that can lead to a...

I've seen multiple cone bottomed leg supported tanks design and built using API-650 for the liquid level/Wall thickness of the cylindrical portion, API-620 for the cone bottom (if less apex angle greater than 60º), and ASME/COMPRESS for the leg calculations. COMPRESS will allow the input of...

Looks like that part should be evaluated using "Thick" wall formulas. John Fowler @ online resources has a book on designing to API-6A/16A/etcc... that covers parts like this.

Lots of articles have been written on the use and drawbacks of "plate elements". Since there is no inherent thickness to the surfaces used in plate models there is no way the stress distribution at a "junction" can be accurate. This is the reason for the use of "Junction Rings" when plate...

I believe this issue is only graphical, especially if your results are closely matching hand calculations. The software is just trying to build a representation and having problems at the corners.

I have a client that has a very large number of dents in the floor of a storage tank due to stalactites falling. Most if not all of the dents fail the API-653 Annex B, B.3.3 criteria for internal bottom settlements or bulges. There are no leaks and the roof geometry that created areas for the...

I am currently using some non-linear FEA models to develop a relationship between additional liquid level and usable hold-down load. I will post my results at a later time.

Thank You, I will look into the seismic overturning section. We never use appendix E, it looks like it may have what I need.

Hello, I am performing Tank re-rates and basic API-650/653 calculations for clients along the Gulf Coast. Almost all of the clients have a Hurricane preparedness procedure that involves filling their tanks to a recommended liquid level to provide overturning stability and additional...

I do have it in an e-mail from the board investigator.

Well thank you kindly rbulsara.

I got a reply from my local board and I will just be added to the payroll at this company so I will be "engaged In industry" and every thing will be fine . This is straight from the board investigator. Thank you all for the input. I'm glad so many are willing to comment.

Well I don't see it as getting away with anything. I have written my local proffesional engineering board with the exact same question. I was hired by this company right out of school to do this same job and there was no PE overseeing anything I did. Now I have a PE (my boss) that will...

Hello everyone, I am a mechanical engineer and I have almost 4 years of experience in oilfield production\drilling equipment design. I am currently employed at a company that is not part of this field. I developed many of the procedures and methods used at my former company because they had...