Week - 5 - Modelling Spotwelds

AIM:- To understand the function of implicit and explicit function by solving a polynomial equation. THEORY:- The finite element method (FEM) is a numerical problem-solving methodology commonly used across multiple engineering disciplines for numerous applications such as structural analysis, fluid flow, heat transfer,…

AIM:-To stimulate non-linear transient birdstrike stimulation where the bird tries to hit the gas turbine blade by using Lsdyna. THEORY:- Nomencluture of gas truine in an aeroplane. The turbojet engine consists of four sections—compressor, combustion chamber, a turbine section, and exhaust. The compressor section…

Aim:-To perform different types of joints using solver as lS-DYNA Theory:- The joint which is used connects two separated parts and makes the connection.  Types of Joints: Mechanical joints are broadly classified into two classes viz., non-permanent joints and permanent joints.  Non-permanent joints can be assembled and dissembled without damaging…

Aim:-To model the hyperelastic material model from experimental data and compare the results at the end . Theory:- Hyperelastic materials are the special class of materials that respond elastically even when they are subjected to large deformations. They show both a nonlinear material behavior as well as large shape changes.…

 Aim:-To create a material card from raw data and validate it. Procedure:- First, they had given the graph of true stress and true strain graph.  By using this graph we need to convert the curve into x,y points  By using get data graph digitizer software. First, we need to import the graph to the software.…

Aim:-To perform mass scaling operation for the dynamic simulation. Theory:- MASS SCALING Anytime you add nonphysical mass to increase the timestep in a dynamic analysis As per the CFL (Courant-Friedrichs-Levy) condition, the stable time step for explicit analysis is Here emin is the size of the smallest mesh element.…

AIM:-To perform head impact on the automobile hood by using ls_dyna. Theory:- Pedestrian Protection Various tests involving adult and child pedestrian accidents are replicated at 40kmph. Instead of using full-body dummies, specific body parts such as the head and legs are used and they are hit to certain sections of the…

Aim:-To calculate the stretch ratio by using different element formulation of a solid element with Odgen material. Theory:- Hyperelastic materials are the special class of materials that respond elastically even when they are subjected to large deformations. They show both a nonlinear material behavior as well as large…

AIM:-To perform crash stimulation of box which are to be connected with respect weld by beams and solids. PROCEDURE:- Import the model into ls pre_post. To import the model we need to open ls prepost and click on File and select the option import.  Then select the keyword file and click on apply. Then after we need…

AIM:-To perform the stimulation of the crash box by varying the thickness of 1.5mm and 1.2mm. PROCEDURE:- Import the model into ls perpost. Apply the material property for the parts given. Apply the Section property to the parts in the model. Then after we need to give boundary conditions to the model. Then we need to…

AIM:-To perform drop test of mobile on the ground and understand the process of performing the test. PROCEDURE:- Import the model into ls perpost. Apply the material property for the parts given. Apply the Section property to the parts in the model. Then after we need to give boundary conditions to the model. Then we need…

Aim:-To maintain unit consistency with a change in the unit system. UNIT SYSTEM: Unit system is divided into fundamental and derived unit system The units which are independent of each other are known as Fundamental Units Derived Units are derived from Fundamental Units. The system of units measures the physical quantities…

AIM:-To perform meshing in the floor panel PROCEDURE:- Import the model into a hyper mesh Assign the quality and mesh parameters For geometry cleanup, we need to go to geometry and select quick edit To split the surface we use split with node and split with line To reduce the concentration at the hole we need to select…

AIM:-To perform shell mesh on the side door inner pane.l PROCEDURE:- Import the model by going to import and select import cad and select the format of the file and click import. Then we need to give the parameters to the component for meshing. To give the parameters we need to go to preferences and select criteria file…

AIM:-To perform  connection for the given component  PROCEDURE:- First, we need to  import the geometry  Then after we need to geometry cleanup Then after we need to mesh the part Then after we need to give connections GEOMETRY CLEANUP Import the geometry into hypermesh optistruct To import the geometry…

AIM:-To perform tetra mesh on the given components PROCEDURE:- First, we need to import the model Then after we need to clean the geometry After that, we need to perform shell mesh using trias Then we need to go to 3D pannel and we need to mesh the volume  Then we need to fix the quality GEOMETRY CLEAN UP We need…

AIM:-To perform linear analysis for plate considering the hole in it. THEORY:- PROCEDURE:- Open the Ansys workbench and click on static structural  Selecting analysis type as static structural After selecting that we need to specify the data like material, geometry, etc... To specify the material we need to double…

AIM:-To perform shell meshing on automobile hood model PROCEDURE:- Import the model by going to import and select import cad and select the format of the file and click import Then we need to give the parameters to the component for meshing To give the parameters we need to go to preferences and select criteria file setting …

AIM:-To perform the crash analysis on the car BIW component and observe the changes in the model with respective the simulation and graph Theory:- FMVSS -FEDELAR VEHICLE MOTOR STANDARDS It is a vehicle regulatory organisation which is used to perform a crash test on the model and see whether people under-car are safe or…

AIM:- To establish the connections and compare the run result of different types of contacts PROCEDURE:-  We need to import the model into a hyper mesh Then we need to clean the geometry  And perform mesh with a size of 6mm Then establish the connection between the surfaces IMPORT THE GEOMETRY Go to import and…

AIM:-To understand the material laws in hypermesh and its behavior when undergoes analysis PROCEDURE:- Importing the 000.rad file to hypermesh Changing the material laws Observing the changes in the models and graphs while doing analysis And then we need to conclude the results IMPORTING FILE:- Open HyperWorks and import…

AIM:-Comparison of results with base simulation and improved shell element properties PROCEDURE:- We need to import the model And assign different values like frequency and properties to the component before undergoing analysis. Then we need to perform the analysis and we need to compare the results. Then we need to plot…

AIM:-To perform box and Hexa mesh of given component and to understand radioss analysis. PROCEDURE TO PERFORM 3D MESH:-  First, we need to geometry cleanup  Then after we need to give quality criteria After that, we need to perform mesh Then save the file in.hmw file GEOMETRY CLEANUP:- First, we need to clean…

AIM:- To perform shell meshing on given components. PROCEDURE:-  First, we need to import the model in hyper mesh Then after we need to check geometrical errors  Then after we  need clear geometrical if present Then we need to take mid - the surface of the component Then we need to reconstruct the geometry…

 AIM:- To perform mesh and deploy connection to the suspension system in automobiles. PROCEDURE:- First, we need to import the model to ansa software. Then after we need to clean up the geometry. Then we need to set components into different property IDs. Then we need to decide to perform volume or shell mesh to the…

AIM:-To extract mid surface and mesh instrument pannel with satisfying quality criteria. THEORY:- As the component is the instrumental pannel which is majorly used in automobiles. Majorly it is called a dashboard in normal terms, where all components like instrumental cluster, A.C, vents clove box, sound box, etc. AS now…

AIM:- To understand and perform basic  morphing on given sheet metal component THEROY: As of now morphing is a technique to change geomentry with respective to parent geometry without usuage of cad software.It is used to do basic modifications PROCEDURE:- We need finish geomentry cleanup and keep the geomentry away…

 AIM: To perform solid mesh on rearview mirror model by satisfying all quality parameters PROCEDURE 1.GEOMETRY CHECKS First, we need to import the model and save it in .ansa file. Then we need to perform topo operation to all entities to perform the connection between them. After that, we need to perform a geometry…

Week 3 challenge: Hood design Aim:- To understand the basic commands and getting familiar with Ansa GUI, while geometry clean up and meshing Objective:- Understand command that needed for geometry clean-up Working with the commands to clean the geometry, while geometry checks Extracting mid surface for all the parts that…

AIM:- Performing shell mesh for bottle cap by maintaining quality, and clean the geometry without any errors before meshing procedure:- We need to import the model we need to perform topo operation for the complete model we need to check geometry and cleanup the geometrical error  Extract the mid surface for every…

AIM:- To give appropriate connections to the rear door by using NASTRAN deck in ANSA PROCEDURE:- As of first, we need to be spilt the component to different PID and arrange it properly. Then after we need checks the FE-model correctly and we must give appropriate connections to every component TYPES OF CONNECTORS:- Depending…