Forwarded from Piping Stress Analysis (PSA Group)
Step 6: On options it is suggested not to change any parameter. Now click on analysis to read the results. The output will inform you whether WRC checking is passing or failing. Use results as per your requirement.
Forwarded from Piping Stress Analysis (PSA Group)
For entering loads and moments as per local convention following description and figure can be used for converting global forces into local forces:
Forwarded from Piping Stress Analysis (PSA Group)
As shown in fig, Stretch your right hand with Middle finger along the Vessel Centerline. Index Finger should parallel to nozzle centerline and should point in a direction from nozzle towards entering vessel. And Thumb should be perpendicular to both. Then1.Direction of Index Finger represents +P.
2.Direction of Middle Finger represents +VL
3.Direction of Thumb represents +VC
4.ML will be positive if by applying right hand thumb rule to ML, direction of thumb is same as that of VC.
5. MC will be positive if by applying right hand thumb rule to MC, direction of thumb is opposite to direction of VL.
6.MT will be positive if by applying right hand thumb rule to MT, direction of thumb is opposite to direction of P. Get the loads and moments from CAESAR output. Compare the direction of Forces and Moments in CAESAR output with conventional Force and Moment directions and enter the values of P, VL, VC, MT, MC and ML accordingly.
2.Direction of Middle Finger represents +VL
3.Direction of Thumb represents +VC
4.ML will be positive if by applying right hand thumb rule to ML, direction of thumb is same as that of VC.
5. MC will be positive if by applying right hand thumb rule to MC, direction of thumb is opposite to direction of VL.
6.MT will be positive if by applying right hand thumb rule to MT, direction of thumb is opposite to direction of P. Get the loads and moments from CAESAR output. Compare the direction of Forces and Moments in CAESAR output with conventional Force and Moment directions and enter the values of P, VL, VC, MT, MC and ML accordingly.
95829_Pipeline_Metallurgical_Failure.pdf
3.9 MB
PIPELINE METALLURGICAL
FAILURE ANALYSIS
FAILURE ANALYSIS
Determine_the_optimal_span_between.pdf
353.7 KB
"Determine the optimal span between pipe supports for thin walled piping systems" International Conference on researches in Science and Engineering
28 July 2016, Istanbul University, Turkey
28 July 2016, Istanbul University, Turkey
FE Analysis Report - Saddle:
Design Data:
Design Pressure 3.9 kg/cm² g
Design Temperature 65 °C
Corrosion Allowance 3.0 mm (Shell)
Design Data:
Design Pressure 3.9 kg/cm² g
Design Temperature 65 °C
Corrosion Allowance 3.0 mm (Shell)
For 2100mm Sadddle
Maximum Equivalent Stress (Von Mises) (400.26 MPa Fig 6) occurs in the web plate near web plate to wear pate junction, this is less than the allowable stress 413.67 MPa. Hence provided design is safe.
Maximum Equivalent Stress (Von Mises) (400.26 MPa Fig 6) occurs in the web plate near web plate to wear pate junction, this is less than the allowable stress 413.67 MPa. Hence provided design is safe.
ASME B 31J & B 31J Essentials: Why these are useful in Piping Stress Analysis?
Intergraph has announced an extension of Caesar II 2017 in May 2017. B31J Essentials provides a set of calculations for revised SIFs and flexibility factors, as defined in the code ASME B31J-2017, Stress Intensification Factors (i-Factors), Flexibility Factors (k-Factors) and their Determination for Metallic Piping Components.