Results 1 to 1 of 1
  1. Help required for determining for Code Stress in Caesar ii : Code: ASME 31.1

    My issue:

    1. Pls refer the attached file "1.Node" so that you may get the idea of the system. - It is a plain piping system (OD=168.3) anchored at Node 10. with no temp./pressure. Only self weight acts causing bending and torsion.

    2. Pls refer the stress "2. Stress table".
    I have doubt in Code stress

    **At node 10 & 18:
    Node18:
    Bending: 1552.8kPA, torsion: 78.8kPa, Maximum Stress Intensity = ((1552.8^2)+4*(78.8^2))^0.5=1560.8kPA
    Code stress = same as Maximum Stress Intensity since because SIF =1 ? Am i right.

    **At node 18:
    Maximum stress intensity = (435^2+4*(78.8)^2)^0.5 = 462.7 kPA
    SIF = 2.473
    Therfore as per ASME B 31.1,
    Stress = 0.75*i*(M/Z)
    M/Z = Stress
    Net Bending at node 18= 435-175.9=259.1kPA
    Net torsion at node 18= 48.8-48.8 = 0

    Therefore, Code stress = 0.75*2.473*259.1 = 480.56kPA
    - But the Code stress in report is 438.2 kPA
    - Pls explain how. I am mistaken somewhere.?


    **Similary At node 19 = Unable to determine how did 205.8 come?

    **But again at node 20, where torsion = 0, SIF=2.473
    Code = 0.75*bending = 0.75*64.2 = 48.1 k PA
    why SIF value is not used here?

    I am also attaching the report file (ELB1.TXT) for your ref.



    Regards,
    Prabhjyot Singh


    See More: Help required for determining for Code Stress in Caesar ii : Code: ASME 31.1
    Attached Images Attached Images
    Attached Files Attached Files

  2. # ADS
    Spons Circuit
    Join Date
    Always
    Posts
    Many
     
  •   

Similar Threads

  1. International Code for Fire Safety Systems (FSS Code)
    By sambun in forum Safety And Environment
    Replies: 2
    Last Post: 09-30-2016, 01:34 AM
  2. Code Case 2695 and ASME 2010 Code Cases
    By mbc.engg in forum Mechanical Engineering
    Replies: 11
    Last Post: 05-13-2016, 11:10 AM
  3. Replies: 0
    Last Post: 03-13-2014, 06:31 PM
  4. Caesar II Code compliance
    By amacathot06 in forum Engineering Software Tutorial
    Replies: 2
    Last Post: 06-02-2011, 06:12 PM
  5. Need Help for SHELL code and Chinese code for fire protection
    By sumit.alok in forum Safety And Environment
    Replies: 0
    Last Post: 06-24-2008, 06:08 PM

Tags for this Thread

Bookmarks

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •