24
Mar
Test the eggshell strength of just one egg before moving on to three. The average load to break the eggs when standing up was 53 Lbs.
Place three eggs in a triangle and make sure they have all their caps.
The strength of an egg. Test the eggshell strength of just one egg before moving on to three. Place three eggs in a triangle and make sure they have all their caps. You can put a piece of cardboard underneath as a barrier just in case.
We managed a huge stack of books including a. Using a precision laboratory scale the team pressed down on the tip of the mold and measured how much each egg pushed back. The team ran the experiment several times using different molds with different densities and shapes to get a general understanding of how the shape of an egg affects its strength.
The strongest part of the eggshell lies at the top or bottom point of an egg. Therefore an egg doesnt break when you apply pressure at the peak points of both the ends. Also the curved shape of an oval shaped egg is the strongest part since it participates in distributing weight and.
The average load to break the eggs when standing up was 53 Lbs. On their side an average of 90 Lbs was required. This makes sense because eggs are flatter on their side which allows more of the platenfoam to contact the shell helping distribute the force across a larger area.
Weve all attempted to break an egg by squeezing it with our hands and failed miserably. In an attempt to have a little fun we decided to try and test the st. In perfect conditions that thin layer allows an egg standing on end to bear a 130 pound weight without breaking.
Perfect conditions rarely exist in real life because any natural shell will have. The egg is strongest at the top and the bottom or at the highest point of the arch which is why it does not break when pressure is added to both ends. The curved form of the shell also distributes pressure evenly all over the shell rather than concentrating it at any one point.
An egg is a great example of natures excellent skills in packing. If you squeeze the ends of an egg between the palms of your hands it wont break. However if you squeeze it in the middle it pops and creates a terrible mess.
If you have seen the way eggs are sold in the market. The Strength of Egg Trays under Compression. A Numerical and Experimental Study Materials Basel.
Authors Leszek Czechowski 1 Gabriela Kmita-Fudalej 2 Włodzimierz Szewczyk 2 Affiliations 1 Department of. Size and shell thickness were the most important factors in determining shell strength. The strength of eggshells decreases with increasing size and thus thickness but the force required to break the egg increases because the stress forcearea is less.
Why can you not squeeze an egg. The real strength of an egg lies in its shape. Eggshell strength is the destruction strength breaking strength of eggshell which can be measured in kgf kilogram force N Newton or lbf pound force.
This shape provides enough strength to the eggs to hold heavy weight without breakage. Because they are the perfect structures and one of the strongest architectural forms with internal strength. The dome or curved shape of the eggs provides pressure distribution evenly all over the shell and makes the egg shells very strong.
The shape of the arch distributes the compressive forces to the weight-bearing piers that support the arch. An eggshell is a natural example of an arch. One end of the shell has a larger rounder arch and the other end is narrower and more pointed.
It is pretty easy to crack an eggshell if. Eggshells are tension-weak materials but are strong in compression. This is why it is difficult to crush an egg by squeezing on its ends compression forces but will break when chicks peck from the inside of the egg tension forces.
So how strong can an eggshell really be. Here is another slightly messier way to measure the strength of eggshells using whole eggs and a simple experimental apparatus. An Egg-ceptionally Egg-celent Egg-periment.
Testing the Influence of Morphological Design. Department of Biology West Chester University.