Stress Intensification Factor (SIF) & Sustained Stress Index (SSI)

What is the Stress intensification factor SIF and how it can be calculated?
The difference between ASME B31.3 Appendix D and ASME B31J?
The difference between SIF & SSI?
Example for Axial Stress calculation,
FEA Tool how I can be used and the SIF? tool inside it.
All can be found in this short presentation with examples of how it can be done on software
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