Week - 5 - Modelling Spotwelds

Aim: Create the mesh for bumper assembly, mesh size should be 6mm.  Run the Crash tube model with 6 different cases as given below and compare. Objective: Run the crash tube model as it is. Change the Inacti=6 and run. Create the type 11 contact and run. Remove both notches and remove boundary condition on rigid body node…

   AIM: To run crash analysis on the given model by applying different materials laws available in Radioss and post-process the results Objective: To carry out simulations of the given starter files and compare the results. There shall be 7 cases (according to given parameters) and they are to be compared primarily via…

   *Objectives:- 1)To change the run time to 55 ms. 2) Change the number of animation steps during simulation to a minimum of 25 and maximum of 60. 3) Run the base simulation without any modification to element properties. 4) At the end of the simulation, do the energy error and mass error checks and determine whether…

Aim -      The Housing(Bottle Cap)need to be represented with refined mesh by removing geometrical error, providing surface and volume mesh with given quality criteria to it. In addition to it, understand the Radioss Engine Files and calculate the speed of sound and animation frequency. Objective Check…

OBJECTIVE:        Clean the geometry. Extract midsurface. Clean midsurface geometry. Ignore holes less than dia 5mm. Create 2D mesh with target length 5mm, min 3.5mm max 7mm. And assign proper thickness, by creating a generic property PROCEDURE:         PART 1:             Import the part-1.hm file to Hypermesh under radioss…

AIM:                  In this challenge, we need to a create simulation of a Bird crashing with the Fan Blades of an Aeroplane Propeller. Theory:        Jet engine ingestion is extremely serious due to the rotation speed of the engine fan and engine design. As the bird strikes a fan blade, that blade can be displaced into…

OBJECTIVE:      To create thed offerent type of joints like translational,revolute,cylindrical and spherical joints. That joints are created between the two rigid bodies in LS-dyna. The behaviour of the joint can be established using keywords. PROCEDURE:      A mechanical joint is a section…

 AIM:            Given the material data below, calculate the Mooney Rivlin and Ogden material constants and compare the both using stress-strain data from a Dogbone specimen tensile test with 100 percent strain. The given data is the engineering stress-strain in MPa/(mm/mm). The…

OBJECTIVE:       Use the graph digitizer to extract data of True stress vs true strain of anyone grpah given below       Use this data point and creta a MAT_24 PIECEWISE LINEAR ELASTICITY material card for an elastic -plastic material.       Verify the model card by performing…

  AIM:      To perform the simulation by reducing and stabilizing the run time with the help of mass scale factor   OBJECTIVE:      $ To understand the motive of computing time with and without a mass scale factor.       $ By ensuring the stability of mass scaling at 8%.        $ Comparing implicit and explicit value runtime.…

AIM:   To perform the head Impact Simulation and calculate the head impact criterion (HIC) value for the following cases            (i). Simple head model impacting against rigid wall.            (ii). Child headform dummy model impacting against rigid wall.            (iii). Child headform dummy model impacting against…

   AIM:         To perform the simulation using ELFORM =1,-1,2,-2 and calculate the stretch ratio.   OBJECTIVE:       Create a block of 10mmx10mmx10mm dimension with 10 elements for each direction and use the material card attached (Ogden_Material.k) that is representative of the material properties from the above figure.…

  AIM:        Run a crash box simulation using beam spot weld and solid hexa spotweld and compare the result (axial and shear force).  EXPLANATION:       Modelling of spotweld is very important as it help to keep the sheet metal together.       Material modelling and its failure method are very important parameter which…

   AIM:                  In this assignment, the student needs to simulate a crash test for a crash box for which mesh is given. A    crash box is a highly energy absorbing structure that crashes on application of    loads and reduces impact on…

  AIM:        To create complete simulation file to perform a drop test from given basic .k file consisting of only nodes and elemnts. Essential keywords should be added to create a basic solver deck to simulation a drop test.   PROCEDURE:        STEP 1:             The given model.                  STEP 2:            …

   AIM:           Solve the given equation,F(u)=u3+9u2+4u in both implici and explicit method.    OBJECTIVE:         Solve the equation, F(u)=u3+9u2+4u using explicit method         Solve the equation,F(u)=u3+9u2+4u using implicit method.     1) Brief intro on EXPLICIT METHOD.           Explicit methods calculate the state…

  OBJECTIVE:           The objetive of this challenge to convert the given SI unit value of the given quantites to gm/mm/ms units and also prepare consistent unit system table for different unit system.  GIVEN TASK:         The units for the basic measurement quantities, mass distance and time - dictate how the other derived…

https://drive.google.com/file/d/1TQJenAmTqVnj_Usx0FYQe7zPw5EgzLO-/view?usp=sharing   AIM:           Use tetra elements to model non-uniform thickness components.  Use Volume mesh for Tyre and Rim with below Quality criteria. (Use Tria Element) Use mid surface only when the thickness…

https://drive.google.com/file/d/14spaH7PjRsYNIkQq9ecKc-UVUU7229cW/view?usp=sharing   AIM:        To check the geometrical errors and mesh flow with given quality criteria and assign thickness   PROCEDURE:      STEP 1:             The given model .          STEP 2:           Go to check manager----geometry---exceute.  …

AIM:      To do morphing at given both the models. OBJECTIVE:  To do morphing at various techniques. PROCEDURE:                           MODEL 1   STEP 1:                    STEP 2:          GO to morph box it should be in active.                STEP 3:          Go to boxes----new----select the particular are---then morph…

AIM:       The connections for the front door by using different 1D elements . OBJECTIVE: Make connector in particular areas. PROCEDURE:       STEP 1:           The given model.                            STEP 2:         Go to nastran bar----RBE2 nodes----select many nodes----then extract RBE2 rib.                    …

T

AIM:     The given Rear view mirror component, check for the geometrical errors and mesh the Surfaces with the given 2D element Quality criteria.Use 3D tetra elements to mesh the Volumes defined in the model. OBJECTIVE:  To do 2D mesh in tria or ortho tria.  Check the quality criteria.  Do 3D volumetric mesh  PROCEDURE:…

   The time taken for Model 1 = 5hrs 30 mins            Model 2= 3hrs 20 mins

 AIM:          For given plastic component extract the midsurface with proper mesh flow and assign thickness for it. OBJECTIVE: Extract mid surface of givem component. Proper mesh flow Assign thickness for it  check quality criteria.       PROCEDURE:    …

   AIM:         In given model,take the midsurface then proper mesh flow with good element quality criteria and then assign thickness of the midsurface  OBJECTIVE: Take the midsurface of given model Take 2D meshing with proper mesh flow Element quality criteria should pass. Thickness must be assigned to midsurface  PROCEDURE:…

     AIM:            Meshing of floor panel and assign thickness for it.      OBJECTIVE:               Extract midsurface of given model               Generate mesh               Proper mesh flow and quality criteria               Assign the thickness.      PROCEDURE:          STEP 1:                 Given model.     …

    AIM:         Meshing of door inner panel     OBJECTIVE:           To create manual mid of given model.            Generate mesh            Proper mesh flow and quality criteria.           Assign thickness.    PROCEDURE:         STEP 1:               Given model                         STEP 2:               Split the…

AIM:       Create a connector of given model. OBJECTIVE:      Do the 2D automesh of given model      Then create a connectors INTRODUCTION:            To ensure the connectivity of the different parts in a model.            It represent the geometric connection in terms of FEA.            To transmit the force between…

                                MODEL 1     AIM:        Generate the mesh between 2D to 3D conversion.   OBJECTIVE:             Capture the feature lines of the model.              Generate the 2D mesh and covert into 3D tetramesh.               Check the quality criteria of given model   PROCEDURE:             STEP 1:…

  AIM:           Mesh the given component with assign thickness quality criteria   OBJECTIVE            To perform the quality criteria of assign thickness   To do meshing of component       To find free edges   PROCEDURE …

AIM:        Meshing and create cross section with given dimensions. OBJECTIVES:             Meshing is finite element analysis the goal is to stimulate some physical phenomena using a numerical techniques called FEM . SO IN fem ,we create a mesh which split the domain into a discrete number of elemnts for which the solution…