Infinite FEA

I assume you already know the term "Meshing" in FEA. If you still want to read it then  you can visit below link of my previous article https://feadirect.blogspot.com/2020/05/what-is-meshing-in-fea.html Ok ! lets come to the point.  From the above image, you can imagine the representation of elements used in FEA. Here are the details : 1D Elements : 2 nodes It is also referred as line elements. Often used to represent the members, which are too long compared to the measurement of the cross section (L/r > 20). Useful when bending is the root cause of failure. Fundamental assumption : Changes in material properties along the cross section is negligible. Used to represent rods, beams, trusses, cables, frames etc. 2D Elements : 3, 4 nodes It is also referred as shell elements. Often used when thin sheet structures are under bending deformation. Can consider 2D stress conditions and bending and shear deformations. Fundamental assumptions : Changes i...

As I already explain you the roles and duties of FEA/CAE Engineer in an organizations. It will be helpful to understand the steps for any particular job.  Here, we will see the basic procedure for FEA calculations in using FEA softwares and solvers.   I will  try to cover the various softwares discussions soon under FEA Softwares  tab. So, lets come to out present topic,  There are various phases or steps in FEA which are as follows : Pre Processing : Understanding the Problems (Thermal, Structural, Dynamic etc..) Element Selection (Solid i.e 3D, Shell i.e 2D, Beams i.e 1D etc..) Deciding the Boundary Conditions (Constraints, Connections etc..) Load Application ( Point, Surface, Body loads etc..) Solution : Run the model in any solver without any error in it. Solver will solve the matrix equations from the model and solve the primary quantities. Post Processing of Results : Validity check of the solution Report Preparation Observations and Conclus...

If you are a college student or fresher who want to start career in CAE/FEA then this blog is for you guys. You might be wondering what kind of role CAE Engineer has to perform in an organization. Well, CAE Engineers jobs are available in different domain like IT & Software, Automotive, Heavy Industries, Aerospace etc. So there job duties changes depending upon the organisation and project.  Most of the CAE Engineers have to learn multiple softwares with job roles and with increasing experience. That is purely depend upon the project and the organization's software license agreement.  CAE work is broadly divided into Pre-processing, Analysis and Post-processing when it comes to software work. But other than this there are duties one has to perform for smooth work flow. The below are the main responsibilities and duties of CAE Engineer : Understand customer basic requirements and expectations for new product designs. Perform complex design analysis using Com...

What is NVH ? Noise, Vibration and Harshness is the study of the noise and vibration characteristics of the vehicles particularly cars and trucks. NOISE :   Noise is an audible sound generated from engine, driveline etc. It can be measured. VIBRATION : They are very low frequency energy propagations through a medium. Produced in the driveline, the medium can be any part of the vehicle. Can be measured and controlled. HARSHNESS :  Harshness is a combination of Noise and Vibration which creates an uncomfortable feeling in the occupants. They can be felt and can be "Jury" evaluated. CLASSIFICATION OF NVH : INTERIOR : NVH deals with noise an vibration experienced by the occupants                        of the cabin. EXTERIOR : NVH deals with noise radiated by the vehicle. Noise :  Road Noise,  Wind Noise, Power-train, Squeak/ Rattle etc. Vehicle Systems : Body NVH, Chassis NVH etc Vehicle Co...

Hello Guys, I assume you want to become CAE Engineer and you are really interested to know about or learn Meshing. Before you start Meshing, one must know what is Meshing in FEA and for that, I have already explained you about meshing in my previous blog post. Now coming to the point, How to start Meshing ?? If you would like to do Meshing then you first need Meshing softwares like ANSA or HyperMesh etc. These softwares are from well reputed companies and used across the world for Meshing in CAE. I would suggest you to learn these two softwares if you really wanna start your CAE journey. The procedure one should follow to start Meshing are given below : 1.  Study The Geometry of Part Carefully Most of the CAE Engineers start meshing immediately without studying the actual geometry.It is advisable to spend sufficient amount of time on geometry.Read all requirements and instructions carefully before you start Meshing. 2. Time Estimation  These is again the most important stept i...

I mplicit and Explicit are two types of approached that can be used to solve the finite element problem. The implicit approach is useful in problems in which time dependency of the solution is not an important factor [e.g. static structural, harmonic, modal analysis etc.] whereas Explicit Dynamics approach is most helpful in solving high deformation time dependent problems such as Crash, Blast, Impact etc.        The prime difference between the implicit and explicit scheme lies in the consideration of velocity or acceleration. You must be aware of the equation relating mass (m), damping (c), stiffness (k) and force (F). In equation 1, ‘x’ stands for displacement whereas ẋ and ẍ are resp. the first and second time derivatives of ‘x’. In other words they stand for velocity and acceleration resp. mẍ + cẋ + kx = F ...............  (1) Implicit Method: In an implicit scheme, the displacement is not a function of time (i.e. x = constant). Hence...

In Finite Element Analysis (FEA), meshing is a crucial step in the simulation process. It involves dividing a complex geometry into smaller, simpler elements, creating a mesh. Each element represents a portion of the overall structure, and together they form a discretized approximation of the entire model. The primary goal of meshing is to break down the complex geometry into manageable units, allowing the FEA software to analyze and simulate the behavior of the structure under various conditions. The elements in the mesh are interconnected at points called nodes, forming a network that represents the geometry and structure of the object being analyzed. There are different types of elements used in meshing, such as triangles, quadrilaterals, tetrahedra, hexahedra, etc., each suitable for specific types of analyses and geometries. The choice of element type and the density of the mesh (the number of elements) significantly impact the accuracy of the simulation. A fine mesh with smaller ...

Finite Element Method (FEM): Definition: FEM is a numerical technique used for solving problems related to engineering and mathematical physics. It's a broader concept and refers to the entire process of modeling a physical system or structure using finite elements. Process: The FEM involves discretizing a complex structure or system into small, simple shapes called finite elements. These elements are interconnected at points called nodes. Mathematical equations are then applied to each element to simulate the behavior of the entire structure. Application: FEM is a general approach and can be applied to various fields such as structural analysis, heat transfer, fluid dynamics, and electromagnetics. Finite Element Analysis (FEA): Definition: FEA is a specific application of the Finite Element Method. It is the process of using FEM to analyze and solve engineering problems. FEA focuses on the numerical simulation of physical phenomena by breaking down a complex system into finite...

Finite Element Analysis (FEA) In the dynamic realm of engineering and design, one powerful tool has revolutionized the way we approach problem-solving and optimization: Finite Element Analysis, or FEA. This sophisticated method has become a cornerstone in the world of simulation, enabling engineers to simulate and analyze complex structures, materials, and systems with unprecedented precision. In this blog, we'll unravel the mysteries of FEA, exploring its definition, applications, and the transformative impact it has on diverse industries. What is Finite Element Analysis (FEA)? At its core, Finite Element Analysis is a numerical technique used to predict how a structure or material will respond to various physical effects such as heat, vibration, fluid flow, and more. It breaks down a complex system into smaller, manageable elements, creating a virtual model that mirrors the real-world conditions. By applying mathematical equations to these elements, FEA calculates the behavior an...