We are learners. You shall continue with what we did the last lesson that is less than open achieved six, lesson six. We have done this. We continue with that initial Section and Section got What did you say? I'm putting a six one Okay, now lusion will open she can just see not required design minute right and made on the Google Sheet. So that we have to sketch before I'm to start working on moment of inertia, this is a D section, this is always inverted it becomes a raised section, the section at the bottom of Germany is only just like the same thickness will be continued, you will do now is the right section we can call it that.

So, I will make it as a regular section, introductory section. So, we learned about how to do that. And at the same time, from the same figure we can arrive, the section I section. China, rectangular always by manipulating the value we can, there will be one trigger from which we can get the moment of inertia neutral axis reverting from one sketch by varying the values of v another yeah I want a new opening. So now, instead of modifying this I will keep deputies I will duplicate this sheet here. I will duplicate the cheat.

So duplicate adding is here as a blank sheet of added group. Duplicate means eat as the another identical only sheet number a new spreadsheet goes to us. So I will add duplicated sheet here. I will name the sheet instead of copy I will call that sheet if you put one it will not allow you to achieve because already duplication is key. You can also name it in different ways that is a cheat one insert of that machine or any name you want you can name it document detail take up the sheet to what we do is we will modify the whole thing. So, I will remove this first delete the image and our image I will put it once in that said what we have to do that is because you want to see the schedule be larger enough see properly so, I will rub all these cells together.

So, it is in the format manage the cell so much also manages all the cells. Okay. This is this. This is Singleton So, I have already focused on this, I will embed a jpg image file that I have to click on Insert, then you go to meet me in cell and then upload on sketch how are we hanging one section, section C or D section. Accuracy it is more open so this person okay Do we have all these things values be only at the bottom? Yeah, it is not equal to in this case it is equal b and b are equal.

No, it is not. So it is not equal. So depth and other things we have named same. What we do is we will add here. In Satish seat, insert a row and we will add width of the beam. We'll call it as with the game.

Yes, we've done the beam bottom. We can call it a Yay. So we can argue some values given c section you can use some that you say you know definitely been letter C we have already done the same Yep. H e b being at GS Gillen okay MTC one is you know we can have distinct a GS one MC two t minus one and these sickness the sickness is given us this plastic This is given at work is calculated. This actually is auto calculated yes yes he's given us three it just calculated and once you have calculated other things are you cannot conflict. Now we will go to here Yeah, yes.

The crop area being two years bottom area you see Yes, yes and the corresponding cell we have to select see what we do? Yes yes not yes it is very sad you have to consider we stopped out with 10 minutes so it is multiplayer bye and then the thickness six c six that's bottom Yes. Yes Do you did you sell for multiplied by us Yes, he's once again just to see if he's fine to see something here. C three c please drop that in with w being dropped top. Yes, she's. She's 76 we haven't done.

Language we have maintained you say yes. Then you say bless. That's h h into T C D E which we one thing in C three c three c see something is only contained This or this also remain. Sam said we have maintained the same c So, the C four, c four is this seven f seven six which is quite nice. Okay. know where to put an equal sign we get to hear properly VG this is just for the reference.

So, from then we can get into neutral axis. So neutral axis is not equal to half of this, but it will be different because you will have, let's say here, the fiber neutral fiber, neutral axis shifted upward, that is towards a higher, not equal to calibrated. And I'm not considering anything related to calculations of movement of energy or neutral axis. This is the fall I consider from the machineries handbook right here. I mean, you can also calculate the area ratio by from first principles my involving a little bit of integration and all that is from the definition interest calculation, we assume that these are our formula solubility any angle so we can directly upgrade your phone right to calculate he will also arrive at some new power camera like this. It remains the same format maybe even all vertical alphanumeric values will be different.

So, this has been taken from machinery and I will just write it here for the TV no should not be 60 area no know I am talking to you about neutral axis, neutral axis calm right here I'm taking the neutral axes minus bracket Yes, bye. b minus d. d s yes close the bracket getting a means I can see and I understand this. Check it once again be minus minus t squared S squared v minus d plus this is one year minus d minus we'll get to the copy Excel you can just use all copying country by the keystroke, but here it is not possible. Now this is what we have yet to because the calculation is not just for chose value, such a model. We'll come to that later on. Now we'll see new collectors is no no no What is d d d d d c phi what is T dS c six what is d ont again these five then if you have seven what is V once again the thickness particulars that you sent to cc Yes, UCC solid.

G4 six, six D once again. Then as he's selling his yay we already go to this, check up once again Last one is the sci fi these bracket bracket will not take up square bracket minus C's, what is C six is d, d d d d d c five c six c six and then you have your C file the DS d dS c five c six C D E six e play square plus is Solid sec solid, you correct? Yes You see, so in just quiet power to the CT CTS v can b minus c she says D plus c seven c seven is a is correct. multiplied by c four c four is u minus c six, C six c, d e let's see seven See for you see four minus TC six multiplied by c five minus c seven This is the new color.

So, this you can call it as this isn't centimeters I can put an equal sign you see brackets and put properly then you have a problem. So here let us check whether it is okay in order issue should be one more bracket I think This is applicable blankety blank this. The minus the whole thing is square bracket multiply V square square into V minus P. That's yes you humanity into including d minus Yes. Multiply this bracket, sci fi de la for that four year old square bracket to put small bracket on here one one this bracket and this bracket one And then other thing this windows crew added gt six into suitable five squared plus c seven into two multiplied by c three into six that bin which is taken only for this one plus seasonal interest. See four minutes five she said I just want to play by the difference.

Then after that, this vertebrae to see for my sign into one more racket. So, this is what we get to visit this key block, neutral axis. You can notice Neutral activities closer to this is because this is 2514 each deployment is 14 G's letter. So this is looking on interactions we can round out by having the number of things we can zeros like this. So now we got neutral axis and moment of inertia what we have to lose? I mean like don't refer to mission resign, okay?

Inertia is one third back Multiply right in brackets here once again just multiply them by the want to see the where to put everything very carefully d minus lay these D Why this? Why this is why you actually you might miss way. This is to be forgiven for demons putting in brackets then bless you p minus p minus p Put the formula properly in to be able to put proper brackets and the whole thing is a minus one or you intend to multiply by B then plus two by q eight y cubed, which is one group minus B to C to D which is why manatee is diminished by middle just to be one to prevent Q and this this is one unit, and this will be further multiplied by b minus T minus T into this this one, but I get your balance and that's important.

That's it and then minus u minus d into Wyman's you want to put this multiplied together I put this bracket in the whole thing is one bracket we have usually a bracket should balance should be balanced 123456 something like that it will be balanced Okay. See ya t this is all we can get section modulus section modulus definition these are you buddy Is this why is neutral axis So we'll be doing this now Ceylon. See, it's already there. So this is section one. So this is how we can get a moment of inertia. Decent.

See this section can be modified to get the right section can be modified to get a second. That's how we can do is just we equate B to A, B, you can say you go to CT To modify key section you just come to the central point that defines both as symmetrical so it is 25 off of it you get approximately if there is any problem this is a moment of inertia orthodontia, sexual monitors and neutral axis And then maybe properly