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Creation of 1D elements(ROD, BAR and BEAM) for an extracted mid surface.

Geometry resoved for meshing using Mid surfacing: Target geometry: 3D symmetric with uniform thickness throughout. Meshing surface: Mid surface.   Property assigned: Name: Bracket 1, Bracket 2 Property card image: PSHELL Material assigned: Name: Steel Card: MAT1   Meshing procedure: 1. Washer split the complex…

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    Read more Projects by Siddhartha Shekhar (26)

    Vehicle frontal crash for various cases - Simplified | FMVSS 208 Rigid Barrier, perpendicular, 100% Overlap at 56kmph. | ECE-R 94, Car to car frontal crash, 50% overlap at 50Kmph.

    Objective:

    OBJECTIVE: To study the vehicle front crash.  To understand the solver deck for this exercise. To understand the contacts, motion, and physics behind the vehicle crash. Output files associated with the practise. Correlation for Car crash with NCAP-36 load cell wall.   DESIGN OF EXPERIMENT CASE 1: To understand…

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    20 Jul 2021 02:29 AM IST

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    Assignment 2-RADIOSS Engine File Editing & 3D Meshing Challenge

    Objective:

    OBJECTIVE: 1. Perform Tetra mesh using Tetra4 elements for given housing Assembly. 2. Perform Hexa mesh using Hexa8 for given Arm bracket. 3. Perform calculations for stress wave propogation in steel rail and editing the RADIOSS Engine input file.   TASK1: Tetra mesh using Tetra4 elements for given Housing Assembly:…

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    18 Jul 2021 01:25 AM IST

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    Assignment 1-2D Meshing Challenge

    Objective:

    OBJECTIVE: For the given three parts, carry out the following: Geometry Clean-up Extracting the Midsurface Midsurface clean up Defeaturing the holes < 5mm 2D quad mesh with target element length 5mm Property assignement to assign thickness.   PART1: Fig1: Imported Model.   Geometry Clean-up fig2: Wireframe…

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    15 Jul 2021 10:24 PM IST

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    Solution of a load-displacement non linear relation for static analysis using Explicit and Implicit method in MS Excel using VBA programming

    Objective:

    OBJECTIVE:  For a given non linear relation between load and displcement where load is defined as a function of displacement. F(u) = `u^3` + 9`u^2` + 4u   Solve the above relation for static analysis using Implicit and Explicit scheme.   DESIGN OF EXPERIMENT: Loading is done in the increements of 1.0 N with…

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    14 Jul 2021 03:20 PM IST

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    Transient Non linear Dynamic structural analysis for a projectile (mimicking behavior of bird) hitting an aero-engine blade.

    Objective:

    OBJECTIVE: To simulate the virtual scenerio in which, a cylindrical projectile (mimicing a bird) strikes the blade of an aero engine. During this test, relative velocity is provided to projectile, while the aero engine is considered stationary. Projectile(Bird) properties: Material behaviour = Simple elastic (MAT_001)…

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    13 Jul 2021 06:06 PM IST

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    Joint creation between Rigid and Deformable bodies

    Objective:

    OBJECTIVE: Create the following set of joints between two rigid bodies and two deformable bodies. Spherical joint Revolute joint Cylindrical joint Translational joint   DELIVERABLES: Animation of joints to show the mechanism of joints Demonstrations of joints to determine the dof associated with joint.3 Keyword files…

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    13 Jul 2021 05:58 PM IST

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    Week - 10 Hyperelastic Material Models

    Objective:

    OBJECTIVE: From given data for Engineering strain and engineering stress. Calculate the Mooney Rivlin and Ogden material constants from the given data. Run simulation on a dogbone specimen for uniaxial tensile test for 100% strain. Compare the given experimental data with: 1. d3hsp file data for curve fit for given order…

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    09 Jul 2021 03:16 PM IST

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    Modelling the MAT_024 (Piecewise Linear plasticity) card for Graphite cast iron from given True stress strain test data.

    Objective:

    OBJECTIVE: To extract the data from stress-strain curve given for graphite cast iron. From the extracted data for various strain rates: Deduce the value of Elastic modulus. (E = 20.9 `times` `10^6` psi) Convert the data into Kg-mm-ms system of units. Process the data and create the material as demonstrated (Curve fitting…

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    06 Jul 2021 08:19 PM IST

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    Week - 8 Mass Scaling

    Objective:

    OBJECTIVE: To see the impact of TSSFAC and DT2MS in *Control_Timestep card in a runtime for analysis. Plot the Histogram to compare the runtime with mass scaling trials. Study the behaviour with and without mass scaling with negligible deviation between results. Compare the implicit and explicit run time for same simulation.…

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    01 Jul 2021 11:24 AM IST

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    Hexa mesh for Helical Bevel Gear using Hexa8 elements in Hypermesh.

    Objective:

    OBJECTIVE: To mesh the given solid using Hexa8 elements. Ensure proper connectivity.   DESIGN OF EXPERIMENT: 1. Strategise the meshing procedure. The geometry has to be broken into multi parts so that meshing can be done one by one on in each part and later its connectivity with adjacent geometry can be checked. The…

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    26 Jun 2021 11:41 AM IST

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    Pedestrian head impact - as per FMVSS 201 for occupant safety

    Objective:

    OBJECTIVE: 1. Study the pedestrian head impact with simple head and LSTC pedestrian head form with two scenerios. Impact with rigid wall Impact with car hood 2. Study the pedestrian head impact for given velocity range and angle. Velocity = 20kmph, angle of impact = 35 degrees. Velocity = 40kmph, angle of impact = 75 degrees.…

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    15 Jun 2021 11:33 AM IST

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    Week-6 Calculate the Stretch Ratio by comparing the ELFORM (-2,-1,1,2) with Ogden_Material Model.

    Objective:

    INDEX  1. OBJECTIVE Deliverables 2. THEORY Engineering and True stress/ strain relations before the necking process. Stretch ratio (`λ`) Element formulation 3. DESIGN OF EXPERIMENT Type of loading Type of analysis Analysis solution design 4. CREATION OF SOLID CUBE ELEMENTS. 5. KEYWORDS *Material *Boundary…

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    01 Jun 2021 01:22 PM IST

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    Week - 5 - Modelling Spotwelds

    Objective:

    OBJECTIVE: To model the spotwelds:- 1. via 1D beams using mesh generation tool on the given FE and assign material model and check failure with proper constraints and under prescribed motion. To check the time of failure for each element. To determine the maximum axial and shear force induced in welds. Interpret the SWFORC…

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    24 May 2021 12:55 AM IST

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    Week - 4 - Crash Box Simulation

    Objective:

    OBJECTIVE: To create the following events: 1.2 mm thick steel Crash box simulation using a rigid wall with elastic material properties. 1.5 mm thick steel Crash box simulation using a rigid wall with elastic material properties. Under following circumstances: Initial velocity is 50 kmph in all the above events. System…

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    18 May 2021 09:30 AM IST

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    Week - 3 Drop test Challenge

    Objective:

    OBJECTIVE: Creating the LS-DYNA simulation for drop test.  In this problem, mobile is dropped on rigid base. The colliding distance is very close and mobile hits the surface with an initial velocity. The analysis is done from the instant mobile hits the colliding surface and few milliseconds after that. (Orientation…

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    13 May 2021 07:42 PM IST

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    Project - 2 - Meshing on the Rear-wheel suspension Assembly

    Objective:

    OBJECTIVE:  1. Segregate the parts on the basis of thickness. Parts with thickness > 5 need to be volume meshed using Trias >> Tetras 2. Parts less than 5mm needs to be meshed using midsurface with shell elements. 3. Meshing quality criterias are different so meshing needs to be done accordingly.   THEORY:…

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    30 Apr 2021 08:15 AM IST

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      Mid-surfacing, Meshing and Integration of Passenger car seat with associated assembly using connections for NVH domain, as per NASTRAN algorithms...

      Objective:

      OBJECTIVE:  The given car seat CAD is to be meshed and integration of the car seat using connection for NVH domain, as per NASTRAN algorithms. THEORY: Realizing connections CAD into FE: For the given model, CAD for connections is present.   Types of connections: (All connections are as per NASTRAN algorithms…

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      26 Apr 2021 10:32 PM IST

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      Week - 8 - Morphing

      Objective:

      MODEL 1:   OBJECTIVE: To morph the given model.   PROCEDURE:  1. Forming a Morph volume. Morph deck>>Boxes>>New>>Ortho>>Geometry>>Select faces>>middle click 2. Moving and manipulating captured Morph volume. Morph deck>>Box morphing>>Move>>Select corner…

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      21 Apr 2021 08:14 PM IST

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        Week 6 - Creating connection for Rear door

        Objective:

        OBJECTIVE: To assign the PIDs to various componenets of the backdoor and then make connections to join the mechanisms. PRE-REQUISITES: 1. Selection of FE using INOT-NOT for Macro region and PID region. 2. Identifying the linkage of various components. 3. Assigning the joints or type of connection for each connection assembly.…

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        19 Apr 2021 03:11 PM IST

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        Week- 5 - Solid meshing

        Objective:

        1. OBJECTIVE: To mesh the given geometry using tetramesh   2. PRE-REQUISITES: To clean the imported geometry To perform the tria shell mesh To perform the geometry checks, material checks. To perform the volume mesh from generated tria mesh To perform checks for quality of mesh.   3. GEOMETRY CLEAN-UP: It is…

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        11 Apr 2021 08:15 PM IST

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          Week - 4 - 2D meshing for Plastic components

          Objective:

          A. OBJECTIVE: To create the mid surface for the given geometry, and mesh the given component using given criteria in ANSA.   B. STUDYING THE GIVEN GEOMETRY: Given geometry is a plastic component with invariable or non linear thickness. The geomtry is marked for different thickness and accordingly PIDs are generated.…

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          04 Apr 2021 08:59 PM IST

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          Week 12:Project 2-Meshing of Rear Wheel Holder challenge

          Objective:

          OBJECTIVE: To create the mid-surface and mesh for the given geometry.   PREREQUISITES: Creating a criteria file for meshing elements. Extracting Mid surface for sheet metal component. Creating Material card. Creating Property card. Quality checks for mesh surface.   GIVEN GEOMETRY:   EXTRACTED MID-SURFACE…

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          25 Feb 2021 08:11 PM IST

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            Week 12:Project-1-Meshing of Door Inner Panel Challenge

            Objective:

            OBJECTIVE: To generate mid surface and mesh the given plastic component (Car side door assembly)   PRE-REQUISITES: Manual mid surfacing Meshing with 2D shell elements Disintegrating geometry into different collectors using:- Tools>>Organise Creating Material cards Creating Property cards   PARENT GEOMETRY…

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            23 Feb 2021 03:09 PM IST

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              3D Mesh (Tetra mesh)

              Objective:

              1. CREATE TETRAMESH FOR HOUSING A. Geometry:   B. 2D mesh Criteria settings: Max size: 7 Min size: 2 Target element size: 5   Checked for connectivity. duplicates. normals and projection of elements on screen. Material card:- Property card:-   C. Conversion of 2D Mesh into 3D Mesh: 3D > Tetramesh >…

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              03 Feb 2021 06:30 PM IST

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                Creation of 1D elements(ROD, BAR and BEAM) for an extracted mid surface.

                Objective:

                Geometry resoved for meshing using Mid surfacing: Target geometry: 3D symmetric with uniform thickness throughout. Meshing surface: Mid surface.   Property assigned: Name: Bracket 1, Bracket 2 Property card image: PSHELL Material assigned: Name: Steel Card: MAT1   Meshing procedure: 1. Washer split the complex…

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                10 Jan 2021 01:13 PM IST

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                  2D Meshing of Hood of car using mid surface.

                  Objective:

                  Objective: For the given components, Extract mid surfaces with geometry and topological cleanup. Assign thickness to the mid surfaces. Mesh the surfaces as per given quality criteria. Pre-requisites:  Importing the Geomtry into Hypermesh Geometry and topological cleanup Extraction of mid surface Assigning material…

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                  10 Jan 2021 01:11 PM IST

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                    Showing 1 of 26 projects