FEA, THAT NEEDS TO UNDERSTAND...

 Hey guys Today we are talking about the most important topic i.e. the nonlinearity of FEA.  What is non-lineaities? We have talked about linear and non-linear analysis. And how they differentiate from each other. Every problem that we encountered in real life is non-linear. But for the sake of simplifying the problem, we do it with the linear analysis.  What is the linear analysis means? In which for solving any type of problem we considered that the force and the displacement (As an output) are changing linearly. As in the linear analysis the stiffness of matrix doest change it remains constant.                As in the non-linear analysis, there are different types of non-linear analysis. The nonlinearities vary or it depends on various factors there are various types of non-linearites such as a 1) Material nonlinearity 2) Geometric nonlinearity 3) Contact nonlinearity   1) Material nonlinearity As in Material nonlinear...

 Hey guys,  Let's talk about some important thing which is the stiffness matrix. The stiffness matrix is used in every type of analysis either it is static or dynamic. So what is the stiffness matrix as its word suggest the stiffness of an object or stiffness of anything  The stiffness matrix is a matrix which is the stiffness of any elements or the structure which is expressed in the matrix form for solving the governing equation of the problem to get the solution. The stiffness matrix is the key to the treasure to the FEA. Bcoz if there is no stiffness matrix associated with your problem then we cant solve the FEA problem. The stiffness matrix is denoted by this [k] . The matrix mainly depends on the properties which are the material and the geometric structure. For deriving the matrix for any geometry or shape of elements there are three types of methods which is... 1. Direct method: The  direct method is easy to understand but difficult to program so the commerc...