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infiDOF Foundation Program – FEA – ANSYS

2 Feb , 2017,
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infiDOF – Centre of Distinction (CoD)

Renewed Readiness for Industry for Training Support – Every engineer needs to be ready for industry at all times which requires continual renewal of readiness.

The Centre of Distinction is set up to uplift the quality of fresh graduates and working professionals to find themselves in a better mindset for career in engineering analysis. The mission is to make every outgoing candidate from CoD to be work ready by imparting excellence in the technical skills as well as the keep them motivated with continual improvement.

Goals:

  1. To impart technical skills of highest level to be competing with the world’s need for analysis engineer.
  2. To inculcate an inner urge to be continually updated.
  3. To offer Certification Programs recognized by the industry.

infiDOF Foundation Program – FEA – ANSYS

This course is developed for candidates who want to define their career under analysis field. The topics covered under this program are as listed below.

Topics Covered

1.      Theoretical Background of Solid Mechanics

Solid mechanics is the study of the deformation and motion of solid materials under the action of forces. It is one of the fundamental applied engineering sciences, in the sense that it is used to describe, explain and predict many of the physical phenomena around us.

Solid mechanics is a vast subject. One reason for this is the wide range of materials which falls under its ambit: steel, wood, foam, plastic, foodstuffs, textiles, concrete, biological materials, and so on. Another reason is the wide range of applications in which these materials occur. For example, the hot metal being slowly forged during the manufacture of an aircraft component will behave very differently to the metal of an automobile which crashes into a wall at high speed on a cold day

2.      Basic FEM background

The finite element method (FEM) is a numerical technique for finding approximate solutions of partial differential equations (PDE) of physics and engineering by discretization of the domain of analysis into elements.

The technique has very wide application, and has been used on problems involving stress analysis, fluid mechanics, heat transfer, diffusion, vibrations, electrical and magnetic fields, etc.

3.      Material Models and its selection

This is the study of some elementary but very relevant deformable materials applied for various structures, for example beams and pressure vessels. Elasticity theory is used, in which a material is assumed to undergo small deformations when loaded and, when unloaded, returns to its original shape. The theory well approximates the behavior of most real solid materials at low loads, and the behavior of the “engineering materials”, for example steel and concrete, right up to fairly high loads.

More advanced theories of deformable solid materials include

Plasticity theory, which is used to model the behavior of materials which undergo permanent deformations, which means pretty much anything loaded high enough

Viscoelasticity theory, which models well materials which exhibit many “fluid-like” properties, for example plastics, skin, wood and foam

Visco-plasticity theory, which is a combination of viscoelasticity and plasticity, and is good for materials like mud and gels, Etc.

4.      Familiarization of the tool for its usage

  1. Units and Material Models
  2. Geometry Generation and repair
  3. Meshing and contacts
  4. Boundary conditions
  5. Solution and settings
  6. Post-processing
  7. Troubleshooting

5.      Static Structural Analysis

A static analysis calculates the effects of steady loading conditions on a structure, while ignoring inertia and damping effects, such as those caused by time-varying loads. A static analysis can, however, include steady inertia loads (such as gravity and rotational velocity), and time-varying loads that can be approximated as static equivalent loads (such as the static equivalent wind and seismic loads commonly defined in many building codes).

Static structural analysis determines the displacements, stresses, strains, and forces in structures or components caused by loads that do not induce significant inertia and damping effects. Steady loading and response conditions are assumed; that is, the loads and the structure’s response are assumed to vary slowly with respect to time.

The types of loading that can be applied in static analysis include;

  • Externally applied forces and pressures
  • Steady-state inertial forces
  • Imposed non zero displacements

6.      Thermal Analysis

Thermal Analysis is a technique that studies the properties of materials as they change with temperature. Most industrial application and equipment need thermal effects to be modeled and check for its integrity. Heat flux, convection, conduction, radiation and various other het related inputs are studied and applied.

7.      Coupled field thermo-mechanical Analysis

A sequentially coupled physics analysis is the combination of analyses from different engineering disciplines which interact to solve a global engineering problem. When the input of one physics analysis depends on the results from another analysis, the analyses are coupled.”

Thus, each different physics environment must be constructed separately so they can be used to determine the coupled physics solution. However, it is important to note that a single set of nodes will exist for the entire model. By creating the geometry in the first physical environment, and using it with any following coupled environments, the geometry is kept constant.

Although the geometry must remain constant, the element types can change. For instance, thermal elements are required for a thermal analysis while structural elements are required to determine the stress in the link. It is important to note, however that only certain combinations of elements can be used for a coupled physics analysis.

 

8.      Fatigue Analysis

When structures are subjected to repeated loading and unloading due to material fatigue, they can fail at loads below the static limit. The classical stress- and strain-life methods relate a stress or strain amplitude to a fatigue lifetime. Together with the stress-based and the strain-based critical plane methods, you can evaluate the high-cycle and low-cycle fatigue regime. In applications involving nonlinear materials, you can use energy-based methods or Coffin-Manson type models to simulate thermal fatigue. When dealing with variable loads, the accumulated damage can be calculated from the load history and the fatigue limit.

The fatigue load cycle can be simulated in solid bodies, plates, shells, multi-bodies, applications involving thermal stress and deformation, and even on piezoelectric devices. In order to improve computational efficiency when dealing with subsurface or surface initiated fatigue, a fatigue evaluation can be performed on domains, boundaries, lines, and in points.

9.      Troubleshooting

Debugging the errors both in terms of physics of the problem and the software related issues needs to be addressed which arise during the simulation. Various error mitigation techniques will be explained as when it is encountered during the simulation of the above modules

10.  Technical Presentation

Representing the technical details and solutions of the project/problem is very important activity for a simulation engineer as it has to be communicated with peers, experts and clients. Adequate time will be spent to inculcate the need for good presentation and presentation techniques.

Minimum hours required: 80 hours

Case studies:

  1. 2 cases as per the domain chosen by infiDOF

Certificate:

  1. Only after successful completion of case studies and a personnel interview

Mode of Training

The training is done through experienced professionals from the industry with frequent guest lectures by working professionals and consultants based on the need.

  1. Offline – Class room training
  2. Online

Available Schedules

  1. Classroom Schedules
    1. Weekdays – Day – Suitable for Fresh Graduates
    2. Weekdays – Evening – Suitable for undergraduates and working professionals
    3. Weekends – Suitable for working professionals
  2. Online – Anytime

Cost

INR 10,000/-

Software Used

ANSYS 17

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