Week - 4 - 2D meshing for Plastic components

Aim: To model the spotweld using beam elements with time-based failure criteria and comparing it with spotweld using solid element. Procedure: 1.Open the given .k file in the LS-PP and check the different parts present. The .k file has 2 shell parts. Create material card and shell section with 3mm thickness.   create…

Aim: To prepare an input deck for crash test simulation for a given crash box, and to postprocess the results by requesting the sectional forces and global energy values, later changing the thickness of the crash box, and comparing both results. Procedure: Global Unit system followed is gm-mm-ms. 1.Import the given .K…

Aim: To mesh the given rear wheel assembly to given quality criteria and to provide the appropriate connections to the parts. Procedure: 1. Import the model into ANSA work space, and separate the parts by applying individual PIDs to all the parts Fig 1: given model with just 3 PIDs applied.   Create new PID and apply to…

  Aim: To extract the mid-surface of the given instrument panel and mesh the component aligned with the given quality criteria and assign appropriate thickness to the parts. Procedure: 1. Import the model into ANSA workspace and check the model for different components it has.   the given model one component. Geometry…

AIM: To prepare an input deck for drop test in LS Pre Post (lspp) and run the simulation in Ls-Dyna with post processing the results in LSPP. Procedure: 1.Import the .k meshed model file into lspp.   The above image shows the number of parts in the model, for this project only solid elements are needed, i.e., the wall…

Aim: To briefly explain the implicit and explicit solver methods, and to solve the given polynomial equation using both the methods and compare the differences in the solver method. Introduction: All engineering simulation problems involve solving differential equations that involve unknown derivatives, and solving exact…

AIM: To create and apply different PID’s and deploy FE connections to the given rear door FE model. PROCEDURE: 1.Import the given FE rear door model into the ANSA work area and analyze the different parts present in the model, and create PID’s to apply for each part Given FE model. Since the given FE is modelled…

Aim: 1.To understand the application of morphing technique in various industries 2.To alter the design of the given geometry with morphing method Morphing in Industries and its application. Morphing is the adjustment of shape and size of the component to the new size and shape without disturbing the connectivity and the…

Aim: To understand the conversion of unit system and to maintain consistency in unit system. Conversion of given SI units to g/mm/ms Given SI units: MASS 1kg LENGTH 1m TIME 1s FORCE 1N STRESS 1Pa ENERGY 1Nm DENSITY 1Kg/m3 YOUNG'S Modulus 210GPa Velocity 56.33KMPH GRAVITY 9.8m/s2   Mass = 1 kilogram in SI system, where…

Aim: To test the given BIW for side pole impact and request the appropriate results for the simulation test steps: Check the unit system used and follow the consistent unit system to define the bc’s and loading cases To create appropriate interface with 0.2 friction value and other recommended parameters. Check the…

Aim:  To setup the given simulation conditions on the BIW model for frontal crash simulation in HyperMesh/RADIOSS and discuss about the results obtained. Procedure. 1.check 0000.rad file for the unit sysetm used for the model, for this study Kg, mm, ms unit system will be followed. 2.Import the FE model of car in…

AIM: To perform 3D unstructured mesh on the given rear view mirror in ANSA.   Procedure: 1.Import the provided IGS file into ANSA workspace, go to FILE > OPEN > select the file. From the images above the red lines show that the edges of the given geometry are not connected, hence the first operation is to perform…

Aim: To extract the mid-surface of the given plastic component and geometry cleanup for the 2D mid surface meshing. Procedure: 1.Import the given plastic model into ANSA workspace. To import the model, go to FILE > OPEN > select the model and ok. The given plastic component is shown in below image.    …

Aim: To extract the mid-surface of the given vehicle hood component and carry out the geometry clean up and mesh the given hood component according to the given quality criteria. Procedure: 1. Import the given model into ANSA workspace. Check the imported model for number of parts it has, the given model contains five…

AIM: To mesh the given bumper model in hypermesh with element size 6mm, and to run the crush tube simulation with different interfaces cases and different notch positions. The meshing of Bumper model. Procedure: Import the bumper .hm file into the hypermesh Switch the geometry colour mode to 2d topology, to check for free…

AIM: To apply different material types to the simulation model and compare the behaviour of the material with different element and failure formulations. PROCEDURE: CASE 1: Import the provided 0000.rad file into the HyperMesh workspace and change the properties to the recommended properties for shell elements. Save the…

Objective: 1.To run the rail simulation for 55ms and set the animation steps to get 25-60 animation stpes.  2.To check if the results are acceptable or unacceptable ,carry out energy error and mass error of the simulation. 3.Plot the various energy and rigid wall forces in hypergraph 2d. 4. Alter the property cards…

Aim: To manually extract the midsurface of the given geometry, clean up the midsurface for meshing and mesh it according to the quality criteria then assign the thickness to different parts of the geometry. Procedure: 1. Import the geometry into hypermesh using import option. 2. Cut the geometry into 4parts for easy editing…

Objective: To import the given model into hypermesh, and to clean the model to remove any freeedges and extract the mid surface to carry out cleanup and mesh it according to the quality provided. Procedure: 1.import the model into the hypermesh. 2.switch to 2d topology in geometry colour mode and toggel to wierframe mode,…

Aim: To use the connectors to attach different parts of the assembly togeather, the parts are attached through appropriate connector. CAD model of the given component. Procedure: 1. Import the given CAD model into the hypermesh. 2. If the components are sold extract the midsurface and delet the solids by retaining the…

AIM:  To mesh the housing model with 3D elements using 2D elements of minimum length of 2mm, maximum length of 7mm with target element length of 5mm, and 3D elemnts should qualify for tet collapse of 0.15.  Housing Mode: procedure: 1. Import the geometry into the hupermesh using import option. 2 parts of the…

Objective : To mesh the hood according to the quality criteria provided. Procedure: 1. First import the model in to the hypermesh using import option . 2. As the model is assembly of different parts and all are solid parts so for meshing we need to extract the mid surface from them, to do this select a part feom the tree…