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Hyperelastic Material Study using Mooney-Rivlin and Odgen Models

Objective: To model hyperelastic material by conducting uniaxial tensile test for a dogbone specimen and to determine the material constants for Mooney-Rivlin, and Odgen type of hyperelastic materials. Introduction: Hyperelastic or Green elastic material is a type of constitutive model for elastic material for which the…

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Read more Projects by Ninad Mehta (18)

Week 3 - Solving second order ODEs

Objective:

Objective: To simulate the transient behavior of a simple pendulum by solving a second-order ODE  Theory:A simple pendulum consists of a relatively massive object hung by a string from a fixed support. It typically hangs vertically in its equilibrium position. The massive object is affectionately referred to as the pendulum…

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26 Mar 2021 08:11 AM IST

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    Bird Strike Impact on Jet Engine Blades using LS-DYNA

    Objective:

    Objective: Simulate a dummy bird model strike on aero-engine blades. The material for the blades has been given. Elastic material has to be used for the bird and the casing. The bird approaches the blades at a high speed with the blades moving at a constant rotational velocity. The parts, nodes, elements and the keywords…

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    07 Mar 2021 11:01 PM IST

    • CAE
    • LS-DYNA
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    Week 6 - Data analysis using Python

    Objective:

    Aim: To write a script that does data analysis on python Objective:1) Visualizing the data by opening and reading the file and plotting the graph between user desired entities.2) Compatibility check, i.e, code should exit gracefully if a non-compatible file is provided.3) To calculate basic engine performance calculations.Introduction:Data…

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    07 Mar 2021 10:08 PM IST

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      Basic Explicit and Implicit Analysis Study in LS-DYNA

      Objective:

      Objective: To solve the required problem using implicit and explicit analysis Procedure: The equation is given to us as : f(u) = u^3 + 9u^2 + 4u As can be seen, force is a non-linear function of displacement k(u) = `(df)/(du)` = 3u^2 + 18u + 4 Consider `DeltaF = 1`. Since F = ku, `DeltaF = kDeltau`. Explicit analysis:…

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      05 Mar 2021 07:31 AM IST

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        Simulation of a side - crash scenario of a Dodge Neon BIW using FMVSS 214P.

        Objective:

        Objective: To conduct a simulation of a Side Crash for Dodge Neon BIW based on the guidelines below:  -Check the unit system of the model - Create an appropriate interface, friction 0.2, and recommended properties.  - Make sure no intersections and penetrations arise in the model - Correct rigid bodies - Impart…

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        03 Mar 2021 05:14 AM IST

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          Frontal crash simulation of a Dodge Neon BIW using FMVSS 208.

          Objective:

          Objective: To conduct a simulation of a Frontal Crash for Dodge Neon BIW based on the guidelines below:  -Check the unit system of the model - Create an appropriate interface, friction 0.2, and recommended properties.  - Make sure no intersections and penetrations arise in the model - Correct rigid bodies - Impart…

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          03 Mar 2021 04:40 AM IST

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            Week 5 - Curve fitting

            Objective:

            Aim: To perform curve fitting using Python Objective:1) To code and obtain graph of cubic and linear functions for C_p data.2) To get the coefficients of the equations and compare the futted data with the actual data to observe how well the curve fits.3) To write a code that computes the characterics of the fitted data…

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            21 Feb 2021 07:47 AM IST

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              Week 2 Air standard Cycle

              Objective:

              Aim: To write a code for plotting PV diagram of Otto cycle and determine the efficiency of the same.  Introduction:  An Otto cycle is an idealized thermodynamic cycle that describes the functioning of a typical spark ignition piston engine. It is the thermodynamic cycle most commonly found in automobile engines.…

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              12 Feb 2021 10:24 PM IST

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                Mid-surface Extraction and Shell Meshing of a car door in HyperMesh

                Objective:

                Objective: To manually take the mid-surface of the side door and mesh it according to quality criteria. Procedure: The following geometry was provided to us for manual mid-surfacing. The geometry was split into 4 parts using split command. Each seperate part was then organized into a different surface. The mid-surface…

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                09 Feb 2021 04:01 AM IST

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                  Study of Mass-Scaling in LS-DYNA

                  Objective:

                  Aim: To study the effect of mass scaling for different values of dt2ms and tssfac. Procedure: The timestep for any explicit analysis is dependent on the size of the elements in the model. If the timestep of goes below a certain value, there are instabilities produced in the model and hence, explicit analysis is a conditional…

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                  09 Feb 2021 04:00 AM IST

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                  Hyperelastic Material Study using Mooney-Rivlin and Odgen Models

                  Objective:

                  Objective: To model hyperelastic material by conducting uniaxial tensile test for a dogbone specimen and to determine the material constants for Mooney-Rivlin, and Odgen type of hyperelastic materials. Introduction: Hyperelastic or Green elastic material is a type of constitutive model for elastic material for which the…

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                  09 Feb 2021 03:59 AM IST

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                  Elasto-Plastic Material modeling from raw data in LS-DYNA

                  Objective:

                  Objective: Modeling of elasto-plastic material and validation of the same using LS-DYNA Introduction: The stress-strain curve has been provided to us with true stress-true strain values for graphite iron casting. The initial step is to choose the curve and extract the data using a data digitizer. For this case, curve 2…

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                  09 Feb 2021 03:56 AM IST

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                  Pedestrian Head-Impact Simulation to compute HEAD INJURY CRITERIA in LS-Dyna

                  Objective:

                  Objective: To simulate the effects of impact to a pedestrian headform model with LS-Prepost. Procedure: Pedestrian safety is an important aspect of vehicle safety engineering. The current project is based on the simulation of pedestrian head impact on the hood of the car. This case helps in studying the injury caused by…

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                  09 Feb 2021 03:32 AM IST

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                  Study and Modeling of elasto-plastic, brittle and hyperElastic material in HyperMesh Radioss.

                  Objective:

                  Objective: To study different material types in Radioss and compare the cases. Procedure: Choosing the right type of material for the given FE model is of paramount importance to get accurate results during FEA. In the automotive industry, elastic materials are used only for some components as most of the components are…

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                  09 Feb 2021 03:29 AM IST

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                  Study of contact mechanics setup in HyperCrash and HyperMesh using Bumper Assembly model

                  Objective:

                  Objective: Study of different types of interface using HyperCrash and meshing of bumper assembly Case 1: Run the crash tube model as it is. Case 2: Change the Inacti=6 and run. Case 3: Create the type 11 contact and run. Case 4: Remove both notches  and remove boundary condition on rigid body node then run. Case 5:…

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                  09 Feb 2021 03:28 AM IST

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                    Generation of volume mesh for Engine Intake manifold using ANSA

                    Objective:

                    Aim: To generate a volume mesh for intake manifold using ANSA. (Unstructured mesh) S.No  Quality Criteria  Value  1 Target/Average length   3 2 Minimum Length  1 3 Maximum Length  5 4 Tetcolapse  0.2   Introduction: The intake manifold is part of an engine that supplies fuel/air…

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                    09 Feb 2021 03:05 AM IST

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                    Rear-Suspension Assembly mesh generation and deployment of rigids and welds using ANSA

                    Objective:

                    Objective:  To import the rear car suspension geometry into ANSA. Clean up the geometry until no topological errors are found. Generate volume mesh for the parts. Generate mid - surface and 2D mesh for some parts. Improve the mesh flow and element quality Give rigid connections to the rear suspension for NVH analysis.…

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                    09 Feb 2021 03:04 AM IST

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                    Volume Mesh for Rearview mirror using ANSA

                    Objective:

                    Aim: To generate a volume mesh for the rearview mirror using ANSA. (Unstructured mesh) S.No  Quality Criteria  Value  1 Target/Average length   1 2 Minimum Length  0.5 3 Maximum Length  2 4 Tetcolapse  0.2 A rear-view mirror (or rearview mirror) is a flat mirror in…

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                    09 Feb 2021 03:03 AM IST

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                    Showing 1 of 18 projects