Surfaces 7: Hertzian Contact Stress, Pitting and Spalling

[@katerinap.9006]

Fantastic video! This was extremely helpful for my contact mechanics assignment. Thank you.

[@CapitaineBleuten]

Where do the graphs of stresses at 21:00 come from?

[@smendy]

Thanks for the video.
16:38 Do the same factors in the formulas apply for SI units?

[@anuragchakraborty8766]

At 21:53 how do you obtain the expressions for Sigma_x, Sigma_y, Sigma_z stresses along the z-axis ??

[@tyronesantikaTV]

Can i get your help to understand how to workout the Hertzian contact stress/s of a multiple point scenario where contact of a parallel pair of 50mm cylinders are at 90 degrees on another parallel pair of 50mm cylinders with 4 points of contact made from a specific aluminium alloy with the wall thickness of 2mm?

[@gokceevren6598]

This was very helpful thank you🤗

[@joshuatarbutton5420]

You’re welcome 😊

[@KhushalBadhan]

12:58 is the 0.578 some unit conversion factor or is it just a constant? Can you or anyone mention the formula in N, mm, kg, s units? Again at 15:01, is this unit conversion factor or a constant?

[@KhushalBadhan]

Here are non-fractional formulas

[@ahakimi8045]

Do you have any videos on Contact mechanics of soils

[@joshuatarbutton5420]

No, sorry

[@KhushalBadhan]

15:01 I don't understand what is 'a'?

[@KhushalBadhan]

Got it.