I am trying to calculate the stress applied to a 1' x 2' piece of vinyl. The vinyl is welded to the bottom of an above ground pool and is used to hold the leg support, which holds up the side of the pool, in place. There is a leg support every 4'. A picture of the pool can be found at www.splashpools.com. I think I've figured out how to calculate the force exerted on the side of the pool, but I don't know how this stress transfers to the leg support. The leg inserts into a SS tube, which sits inside the top white vinyl sleeve, and can pivot. I assumed that the strap could be modeled like a wire connecting the leg to a fixed wall and then summed the moments about the point at which the leg connects to the strap. The height of the top rail is 51.5". The horizontal distance from the pool side to where the leg sits on the ground is 9". The leg is propped up 2" by a plastic block. I assumed that the rounded portion of the pool was equivalent to a circle with a 13" radius and that the rest of the wall is completely vertical. The pool normally has 4' of water in it.