Stress(sigma)=Young's Modulus(E) * Strain(epsilon or change in length/initial length)
That's what I used and I think that It's wrong because it seems to imply a linear relationship between radial expansion and surface area expansion but intuitively this doesn't seem to be the case. I have tried...
If I have thin shell like a beach ball inflated with air how would I calculate the change in radius and resistance there of due to the pressure inside the sphere? I have calculated the strain on the sphere to be Pr/2h where P=pressure r=radius h= thickness by cutting the sphere in half and...