Stress in a plate due to a point load.xls

This is just a simple calculation taken from a old British Rail Design Manual. I encoded in to Excel just to show it just to show Bombardier what can be done with XLC (Bombardier are the inheritors of the old British Rail Works). I am afraid I did not think much about the content. Its a pretty basic calculation. Here are some more interesting calculations taken from the British Rail Design Manual:
semicircular-tension-fitting.xls
angle-type-tension-fitting.xls
channel-type-tension-fitting.xls
pin-and-lug-%11-static-and-fatigue.xls
I am working up an interesting fatigue calculation from the manual too (watch this space). I hope they help to persuade rolling stock companies take out corporate subscriptions.

I would suggest that the yield line would be different and not located at the support. I would suggest the yield line would wrap around the point load hence you would need to define this length. I would suggest a length of something more like total plate width*2, limited to pie*L. I referance you to yield line behavior for base plates of steel columns. Can send you more info if you please.