- #1
HorseRidingTic
- 6
- 0
Bonjouro!
Firstly, as this is my first post here, I would like to say thank you to everyone who is a part of the site and Hello!
I've used this forum a number of times, but this is the first time I've posted here as this user!
If the flexural stiffness of a beam is 25 MNm^2, and the beam is made of steel, what is the breadth and depth of the beam (or at least beam dimensions that would work)
I did this by saying
I = bd^3/12
EI = 25,000,000,000 Nmm^2
E = 200,000 MPa
I = 1,500,000mm^4
Using I = b*d^3 / 12
Assuming breadth (b) is 50mm, I get depth (d) as 31.072mm, but apparently this is wrong and I cannot figure out why :'(
My question comes from this thing I found on the internet, which gives me these FEA results, but they don't match up!
View post on imgur.com
Please help PhysicsForum guys! You're my only hope!
Firstly, as this is my first post here, I would like to say thank you to everyone who is a part of the site and Hello!
I've used this forum a number of times, but this is the first time I've posted here as this user!
If the flexural stiffness of a beam is 25 MNm^2, and the beam is made of steel, what is the breadth and depth of the beam (or at least beam dimensions that would work)
I did this by saying
I = bd^3/12
EI = 25,000,000,000 Nmm^2
E = 200,000 MPa
I = 1,500,000mm^4
Using I = b*d^3 / 12
Assuming breadth (b) is 50mm, I get depth (d) as 31.072mm, but apparently this is wrong and I cannot figure out why :'(
My question comes from this thing I found on the internet, which gives me these FEA results, but they don't match up!
View post on imgur.com
Please help PhysicsForum guys! You're my only hope!
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