Deflection
Deflection is a material ability to hold together and not break when a force is apon it.Deflection I think would be used if you didnt know how much force it would take to break a certain material. I think it could also be used to see which material is better to use when building a structure of some sort.
![Picture](/uploads/1/3/6/8/13685247/2604948.jpeg?359)
- To calculate the defllection of an object fisrst you have to take the measurements from the Base and Heith of the wood. when you take the length you have to measure from were the pillars ends.
- Then you have to measure the distance of the wool to the floor. Then have someone stand on it and then take the masurment from the wood to the floor. Then take that diffrence of that and then you get what called delta max: thats the diffrence between the actual measurement and the measurment you get after a person gets on it.
- Then after you do the measurments for verticle and horizantall you calculate what's called modulus of elastisity. Then you figure out pound per sqaure feet the person has on the material. Below I will do an example promblem with the woood that's on the left side.
Horizontal position
- b=3.424 h=1.455
- Pre loading distance =3.565
Applied load distance=2.893
Delta Max= .672
3. Ixx=B*H/12
3.424*1.455/12
I xx= .878
- Delta Max= fl^3/48(E)(I)
- Sense your trying to find for E you have to re-arrange it.
- E= 90lb*80^3/(48)(.878*.672)
- E=1,627,074.52
- F= force Lbs
- L=Lenght
- E= Pounds per square feet (PSI)
- I= Modulus of elasticity