why we provide curve shape at the bottom of the deo bottle
how can dome shape resists the interior pressure ??
how can it provide structural support & hoe can it sit flat on a table.Can u give me the explanation.
The dome shape resists the interior pressure of the bottle using a thinner material. If you made the bottom flat, you would need a thicker material on the bottom to resist the pressure inside or the bottom would flex outward and your bottle would not stand up straight. You may also note that non-pressurized bottles with a manual pump are often flat but still thin on the bottom to save on material vs the dome shape.
Are you talk about a pressurized canister of deodorant ?
The concave end of those canisters are for structural support against the pressure with in the canister. They have to be depressed inward so the canister can sit flat on a table. The alternative would be to have a special added bottom piece which would be more expensive to produce.
Niel Leon
Community Developer – engineering.com
The stress in the material are a function of the pressure X the radius of curvature. The larger the radius of curvature the more the stress for a given pressure. A flat plate has a radius of curvature that is infinite. The resultant stress are very high, They cause the plate to flex or bow.
By starting with a curved or spherical plate the stresses are greatly reduced. With an inward facing dome it is in compression. With an outward facing dome the material is in tension.
Niel