- #1

weezy

- 92

- 5

So I was wondering if I could measure the tensile strength of a material in an alternative way. Say I have made a cylinder out of the material whose tensile strength is to be measured. I then fill up the cylinder with some fluid and apply pressure to it and measure the YIELD STRENGTH at the point when my disc ruptures. Now I'm aware that compared to the previous uniaxial loading, now I'm loading it in possibly two or three directions. The material at any point is being pushed in negative and positive x directions and also in a positive z direction, maybe even in positive and negative y directions. This means that I might have to include a multiplication factor of 3 or 5 to the fluid pressure in order to obtain the total stress on the material.

This comes purely from my speculation that since dimensions of tensile strength and pressure are the same, they can in principle be thought of as the same, just like work and energy. My second question is how can we link Young's Modulus to tensile strength of a material?

SUMMARY: I make a cylindrical disc out of material X. Fill it with fluid and apply pressure on top of the disc which pushes the curved part of the cylinder outwards till fluid pressure breaks it. The tensile strength can then be determined by doing 5 X Maximum Fluid pressure. This should give the same answer as uniaxial loading. If I'm wrong please correct me. Thank you!