Hi,

I have noticed when I run the B31J on a B31.3 CII model, that the LR elbows calculated SIFs differentiate substantially from the original CII model which still uses the Appendix D. The formulas for SIFs calculation are the same between B31J and Appendix D, therefore I found it strange why this is happening. Has anyone else noticed something similar and is there any explanation to it? (I am only referring to elbows, not TEEs).

Thanks