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CAESAR II

CAESAR II InstructorsCAESAR II Schedule

CAESAR II Instructors    CAESAR II Sessions




David Diehl
Bio

Equation (1d) (Palmgren-Miner linear damage)


Where several sources produce fatigue damage (i.e. when a system has more than one operating state), piping codes require a cumulative damage approach to evaluate a safe fatigue life.  These piping codes convert cycles from lesser stress ranges into equivalent cycles of the greatest stress range on a node-by-node, stress range-by-stress range basis.  This is reflected in B31.3 equation (1d).  CAESAR II does not calculate this equivalent number of cycles.  This session will develop this idea of accumulated fatigue damage and show how  the program’s fatigue evaluation based on Markl’s fatigue curve meets the requirements of (1d).

 



 
Nadia Strikovski
Bio

Co-Presenter
Mandeep Singh
Bio



What’s New In CAESAR II (& Contest Winner)

The next version of CAESAR II is just around the corner.  What does it include?  This session will review the features and benefits of our next release.  This session will also allocate time for the complete presentation of the CAU2012 CAESAR II Drivers of Success winner.












 
Tony Paulin
Bio

What if it’s not in Appendix D? – SIFs thru FEA & B31J


Appendix D of the B31 codes offers stress intensification factors (SIFs) for common fittings in piping systems.  These SIFs offer a convenient way to relate component geometry to component fatigue strength through a load multiplier.  But these SIFs were all extrapolated from (Markl / Tube Turns) tests on 4 inch nominal (size on size) fittings back in the late 40’s.  What about other components (e.g. an elbolet®) or other sizes (D/t>100)?  What SIF should be used?  Finite element methods can be used to establish SIFs for these piping components.  This session will illustrate how software from Paulin Research Group can answer these questions.

 
Mandeep Singh
Bio

Interfacing & Sharing Data CAESAR II-Smart 3D

There are many benefits to sharing data between designers and piping engineers – reduced input time, reduced errors, relaying changes, etc. but there are many perceived pitfalls – loss of control, reduced comprehension and, specifically poor automatic node sequence in the model, loss of node control, maintenance of load and restraint definition.  Many lessons were learned over the past 10 years in the two-way data exchange between CAESAR II and CADWorx Plant.  This session will point to the current development in round tripping CAESAR II data with SmartPlant 3D and SmartPlant Review found in CAESAR II 2011 R1 and 2012 and the roadmap forward.  See where our efforts stand to date.







 
Ken Atkins
Bio

Practical Considerations for Dynamic Analysis Using CAESAR II Piping Models

When piping vibration is a concern, specialists in the field are consulted in setting original design or at least in field correction.  Engineering Dynamics Inc. in San Antonio is such an engineering consultant with many years of experience in collecting vibration data from the field to diagnose and resolve piping problems.  Based on their practical experience, this session will offer guidance on creating more accurate CAESAR II piping models for dynamic analysis.





 
Jim Meyer
Bio

Recent Code Changes


ASME B31.3 is the practical world standard for evaluating process piping.  There have been many recent changes to this code as it moves from its slide rule orientation to accepted computer applications.  This session will review these changes and their impact on pipe stress analysis in general and CAESAR II specifically.









 

 
Sam Kannappan
Bio

Old School Piper –  Lessons Learned


“Wooden ships and iron men” could be a phrase applied to the previous, ante-computer generation of piping engineers with their slide rules and hand calculations.  Pipe stress engineering was a full time job and a good pipe stress engineer back then (before the 80’s) used charts, nomographs, rules of thumb, shortcuts and simplification to better understand their systems’ flexibility.  They knew their systems and how to manipulate them.  Maybe, today, we can still use some of those “tricks” to return our title from “inputter” to “engineer”.  This session, hosted by one of those “iron men”, will recall those days and redirect our point of view for better piping design choices.

     
    CAESAR II Labs
     



 
Dominik Hepp
Bio

ISOGEN – Creating useful drawings through CAESAR II with minimal expertise


Many uses require a quick means of relaying CAESAR II results (e.g. load, deflection, stress) to others in their organization – even a simple plot displaying model node numbers is important in relaying this information.  This session will get piping engineers started in using the ISOGEN interface provided with CAESAR II to automate this (historically) manual process of data transfer between the engineering and design departments.






 
Loren Brown
Bio

Load Cases & Config – Using the full potential in CAESAR II load case combination


With the increase in model size and loads to consider, many engineers cannot identify worst cases so everything gets analyzed.  FPSO piping is a good example with its weight, thermal, wind and high cycle hull motion loads creating well over 60 load cases.  This session will provide guidance in building load cases, combining them and re-using them between models.







 
Richard Ay
Bio

Sharing & Manipulating Data (Data Import/Export; Hydraulics Import)


The Main Menu item Tools/External Interfaces provides links to many external sources of data – CAESAR II “neutral files”, CAD packages and output data from hydraulic analysis programs.  This lab will allow you to exercise several of these exchanges and expose you to the many benefits of their successful use.