Continue to Site

Eng-Tips is the largest engineering community on the Internet

Intelligent Work Forums for Engineering Professionals

  • Congratulations KootK on being selected by the Eng-Tips community for having the most helpful posts in the forums last week. Way to Go!

Search results for query: *

  1. Bjorn Nilsson

    PCC-2 Fillet Patches Clarifications

    Ok, Not being to familiar with PD5500 I ended up googling the Allowable Stress and ended up with something around 147 Mpa based on A516 Gr. 60 UTS/Y. For this strength I cannot make the shell withstand 2.2Mpa. I had to raise the Allowable Stress to 171MPa in order to make t = 13.7 mm enough...
  2. Bjorn Nilsson

    PCC-2 Fillet Patches Clarifications

    Got an OD to share? Is the vessel a type A component?
  3. Bjorn Nilsson

    PCC-2 Fillet Patches Clarifications

    Sounds like an API 579 part 5 local metal loss Fitness for Service case :)
  4. Bjorn Nilsson

    PCC-2 Fillet Patches Clarifications

    Based on my understanding, no cred is given to the remaining strength of the underlying shell in Article 207/212. This makes sense to me as a Patch Plate may used to reinforce a damaged area where the damage mechanism is not halted. The underlying remaining strength may not be present in the...
  5. Bjorn Nilsson

    ASME PCC-2 Article 212 Fillet Welded Patches

    I've tried for some time to understand if PCC-2 Article 212 eq.(5) assumes weld leg have the same dimensions as the required patch plate thickness, or if it's enough to go with eq.(4) for sizing the weld. Based on the approach used by JAR10 (cred!) in the referenced thread, I've delved deeper...
  6. Bjorn Nilsson

    API 579 Part 5 - Supplemental Loads

    Hello, When performing a Part 5 Level 2 assessment, one may reach a pass/fail in 5.4.3.2 STEP 10 where a fail may be re-assessed through 5.4.3.4. 5.4.3.4 clearly takes supplemental loads into account. Does this mean indirect that supplemental loads may be neglected in 5.4.3.2 for the...
  7. Bjorn Nilsson

    API 579 - Local Metal Loss - Component Types?

    Hi, For Local Metal Loss, API579 limits the diameter of horizontal vessels to D ≤ 3.05m (10 ft). Thus pressure vessels with a diameter exceeding this cannot be treated as Type A components. I would then expect such a vessel to be a Type B or C component but I have some trouble understanding the...

Part and Inventory Search