So, here you can find a different type of shell shapes which we can use in finite element analysis. So, primarily there will be two types of elements, one is two dimensional elements, the next one is three dimensional elements. So in and one more thing here we have to understand is, if you see in the nature, there is nothing called two dimensional, everything is three dimensional. two dimensional is just an assumption where we'll just neglect our small thickness, right? So, in the same way, or I'll show you how we can represent our 2d elements in the ANSYS measure. So for now, just concentrate What is a 2d element and What is its properties while we are working on ensis we can see how our 2d element can be created.

So, here you can see our first 2d element called triangular element. So here, so, this is called first time first order triangular element. So, I will tell you why I particularly am sharing and saying first starter element. So, the first starter element having three nodes you can see this is one node two and three, two these points are called nodes and these lines is called elements. So, the first order elements are called or having three nodes and three elements. So, in the same way if you see here, this is the second order triangular element where our mid node going To be added.

So, the main difference between these two is the solving equations. So if you properly absorb the differential equations in mathematics, so we'll deal with first order differential equations and second order differential equations. If you remember properly the first order differential equation is very easy to solve when we when we compare with the second order differential equation right. So, for second order elements, second order differential equation going to be used and it will take less or 30 more time and but accuracy in the results. So, here the first order differential equation going to be used. So, so this is mainly for the surfaces if you Analyzing any surfaces in that cases, we'll use this to and the next is the quadrilateral 2d element.

So, here you can see this is the quadrilateral element having foreign origin This is the first startup and this is the second daughter which is having a widow McNaught connections. And here you can see this is a structure mesh, right. Normally this quad elements are called structured grids, where we can create structured grids very easy by using this. So, these are the two types of two dimensions available with first order and second order. So the next thing is three dimension elements in that category The first one is tetra All right. So, here you can see the first order it contains of four nodes and six elements.

And the same thing if you see here, this is a second order tetrahedron, you can say it as tetrahedra also. So, that contains 10 nodes and elements. So, these three and these six, six plus six Yeah, it will be dual core elements will be there, right. So, the second one is the pyramid. So, here you can see this is the first startup pyramid element, this is the second order pyramid elements. So, here if you have to hear the fine notes will be there and elements will be 3368 elements will be there.

Here, the notes will be double of it. So your 10 notes will be there and the elements will be base eight and eight total 16 elements will be there in the pyramid element.