The finite element method is a numerical method that can be used for the accurate solution of complex engineering problems.Thereafter, within a decade, the potentialities of the method for the solution of different types of applied science and engineering problems were recognized. Over the years, the finite element technique has been so well established that today it is considered to be one of the best methods for solving a wide variety of practical problems efficiently.In fact, the method has become one of the active research areas for applied mathematicians. One of the main reasons for the popularity of the method in different fields of engineering is that once a general computer program is written, it can be used for the solution of any problem simply by changing the input data.

1. Dr. Devaraj E
Asst. Professor
Mechanical Engineering
SOET, CMR university

2. Contents

26. The biggest issue with FEA accuracy is the experience of its user!
Simply put, if you model something wrongly… it’s like asking the wrong question. Sure,
you will get the correct answer… but not the one you were searching for!
Finite Element Analysis or FEA is the simulation of a
physical phenomenon using a numerical computational
technique referred to as the Finite Element Method, or
FEM. This process is at the core of mechanical
engineering, as well as a variety of other disciplines.
FEA enables you to predict potential design issues and
therefore minimize risk to your product and development
cost.

30. • Dassault Systemes CATIA
• Dassault Systemes SolidWorks
• PTC Creo
• Siemens Solid Edge
• AutoCAD
• Autodesk Inventor
• Bentley Systems - MicroStation
• BricsCAD
• MEDUSA
• Onshape
• Siemens NX
• SpaceClaim
Important Software
How to learn? And Tips for tool test in industries
1. Important: Set a Goal on what you want to design.
2. All CAD software's are similar but with changed layout and
some change in features.
3. There are good sources to learn online for free, Or join a
course in Udemy/coursera where you get structured courses.
4. Always try to have simple part tree.
5. Try to concentrate more on Drafting with GD&T.
6. Solid part, Sheet metal, Pipe routing and surfacing –
Important modules.

31. • Basic equations in classical mechanics and computational dynamics.
• Types of elements, How do you choose the type?
• Mesh refinement and mesh convergence and in CFD What is boundary layer meshing?
• This is a simple piece of L-section. One end is fixed, while the other is loaded as you can see below. What is
the correct von Mises stress distribution?
• Yield criterions, Why von-mises is choosen?
• How to validate your simulation results?
a) b)
Go through all the jobs with
0-3yrs experience.
List down the requirements
Shortlist most common
Requirements
mentioned in JD
Set your goal and
prepare timeline

32. Design Thinking is an iterative process in which we seek to
understand the user, making no assumptions, and redefine
problems in an attempt to identify alternative strategies and
solutions that might not be instantly apparent with our initial
level of understanding.
Problem Solution
Problem Solution
Understand

33. • To meet customer needs.
• To meet ISO standards & legal regulations.
• To maintain good profit margins.
• To have state of the art technology.
• To increase market share.

34. Requirement analysis
• Understand the purpose for which this will be
used.
• What will be stored in the flask?
• What type of opening is preferred: sipper/open
• How much volume is desirable?
• What is the desirable time of storage required?
• What is the environment and fluid temperature?
• What is the size of hand in Indian region? 80mm
750ml
@60C
Avg. temperature
in India
9 0C 450C
Consolidation and Sketching the
requirement
Material selection
• Hard and soft requirements
• Cost, Production process
• Legal regulations in India
Ashby Plots
Detailed design and
simulation
• Perform analytical
calculations
• Create 3D models and
production drawings
Design validation
And reports
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