Week 5 Bending of iPhone

Aim :- To model spotwelds for the given assembly of parts and run a crash test using beam and hex weld element for the spotweld. Details about spotweld location is in the image below. The yellow line signifies the spotweld directions. Using 3-7 spotwelds along this line, in a symmetric manner, connect the parts and run…

Aim: To simulate a crash test for a crash box with different thickness and compare the results. Procedure: Import the .k file. As seen below, a meshed model of simplified crash box is provided. In the Keyword Manager, it is seen that the Part has no material and section defined. We need to create material and section card…

Aim: To sucessfully create a complete input file for performing a drop test using the given mesh file and interpret the results. Procedure: Open the given .k file in LS-Prepost. The file contains simplified model of phone and a plate which represents the ground.     As seen above, the model contains an extra…

Aim: To explain the difference betweeen implicit and explicit method used in FEM and solve the given equation using both implicit and explicit method and plot and compare the results. Explicit and Implicit solvers are used to solve non linear transient dynamic problems, in which the load applied is very fast. In such cases,…

Objective: To convert the given data from S.I unit system to different unit system.   Given data:   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   Conversion from S.I units to g/mmm/ms units system Mass: 1 Kg = 103 g Conversion…

Objective: To perform frontal crash simulation of a car and do a parametric study using different thickness for the car body. Procedure: Open the explicit dynamic analysis system in the Project schematic. The material used for the car body is Stainless Steel NL. Add the material to the Material library. Now proceed to…

Objective: To perform simulation of a bullet penetrating a bucket using explicit dynamics analysis. Procedure: Open the explicit dynamic analysis system in the Project schematic. The material used for the bullet is explicit material – Tantalium. The materials used for the bucket are : Aluminium Alloy NL, Stainless Steel…

Objective: To perform dynamic explicit analysis of Machining with Planer tool for the given cases and compare the results. Case 1: For cutting velocity of 2000 mm/s Case 2: For cutting velocity of 1500 mm/s   Procedure: Open the explicit dynamic analysis system in the Project schematic. The material used for the analysis…

Objective: To perform tension and torsion test on the given specimen. Procedure: Open the explicit dynamic analysis system in the Project schematic. The material used for the analysis is explicit material - Steel 1006 Add the material in the material library. Now proceed to import the geometry. Import the Geometry. Open…

Objective: To perform simulation of a sphere pressing a flat plate and confirm whether there is plastic deformation in the plate. Procedure: The geometry has 2 planes of symmetric portion. For symmetric body with symmetric boundary conditions, we can use the property of symmetry and only perform analysis on ¼ portion…

Objective: To perform transient analysis on a piston and cam mechanism model for the given cases: - with Frictionless Contact - with Frictional contact with μ =0.1 -  with Frictional contact with μ =0.2   Procedure: Open the transient structural analysis system in the Project schematic. The material used…

Objective: To perform transient structural analysis on the given worm gear assembly model. Procedure: Open the transient structural analysis system in the Project schematic. The material used for the analysis is structural steel which is available in the material library. Now proceed to import the geometry. Import the…

Objective: To perform transient structural analysis on a double universal joint using different material for the joint with spring and compare the equivalent stress and total deformation. Procedure: Open the transient structural analysis system in the Project schematic. The material used for the analysis is structural…

Objective: To perform simulation for bending of an iPhone model for given cases and compare the results. Procedure: Open the static structural analysis system in the Project schematic. The material used for analysis are Polyethylene, glass and aluminum alloy. These materials are added to the material library in        …

Objective: To perform an analysis to simulate the bending of a wire using Copper Alloy (Non Linear), Aluminium Alloy (Non Linear) and Magnesium Alloy ( Non Linear) material for the wire and compare the         results.   Procedure:               Open the static structural analysis system in the Project schematic. Rename…

Objective: To simulate the rolling operation on a workpiece made of copper. Procedure: Open the static structural analysis system in the Project schematic. Rename it to copper sheet rolling. The material used for analysis is Copper Alloy (NL). The material is added to the material        …

Objective: To simulate three different types of welding using three different weld materials.         Case 1. Stainless Steel: In this case, the material of the plates must also be the same. Use Stainless steel for both weldments and plates.         Case 2. Aluminium Alloy: The material to be chosen for this case is Aluminum…

Objective: To perform a static structural analysis on the given sheet metal for the given cases and compare the results.         Case 1: Aluminium Alloy 1199, Copper Alloy NL and Magnesium Alloy NL. Find out the Equivalent stress, Equivalent elastic strain and Total Deformation in Y direction…

Objective: To perform a static structural analysis on the Rail wheel and Track setup for the given cases and compare the results.           Case 1: Multiply the bearing load by 5 times and compare the results with the load of 100000 N. Compare the Total Deformation, Equivalent stress…

Grid Dependency Test: Whenever we are going to find a numerical solution through discretization, there will be no. of grid points that will be created. It is well known that higher the no. of grid points, the         more accurate the solution will be. But once the solution starts converging, increasing the no. of grid…

Objective: To carry out a static structural analysis on spur gear with different materials and compare the results.         Using Cast Iron(ductile), Cast Bronze and Cast Steel as a material, carry out a static structural analysis to find out Equivalent stress, Total deformation and Stress intensity.   Procedure: Open…

Objective: To study and compare the effect of stress concentration on plate with hole for different cases.   Procedure: Open the Static Structural Analysis system in the Project schematic and rename it to plate_with_hole.                      …

Objective: To perform side impact analysis on the given car model. Procedure:          Import the given .0000 rad file. Go to File > Import > Solver Deck. Select File type as RADIOSS and in the file selector, select the required file and click on Import. The file will be imported.…

Objective: To perform Frontal crash analaysis on the given car model and plot the results at different cross sections responsible for taking and transmitting the forces after impact. Procedure:         Import the given .0000 rad file into Hypermesh. Go to File > Import > Solver deck and import the file.                   …

Objective: To mesh the given bumper model with mesh size of 6 mm.                         To run the crash tube simulation with given 6 cases and plot the graph for energies.  Procedure to mesh the bumper:          Import the .hm file. Go to File > Import > model. Click on Select File icon. Select the .hm file and click…

Objective: Using different material models, perform the simulation on the rupture plate and compare the results. Case 1: Law2 material model with Eps_max failure mode         Import the given component. Go to File > Import > Solver Deck. Click on open file icon and navigate to the…

Objective: To run the given simulation with default element properties and then with the recommended properties and compare the results of simulation.                         Describe Hourglass Effect, its…

Objective: Using the material properties of the rail component, calculate the speed of sound in steel rail. Calculate the time taken for the shock wave to travel from one end of the rail to the other. The length of the rail is about 1000 mm. Time for sound to travel length of rail. Edit the engine file so that the stress…

Objecive: To perform 2D meshing on the given sheet metal componments using following quality criteria-                        Target length: 5mm                        …

Objective: Mesh the given component using given criteria and assign thickness.         Target Element Length = 5mm             CAD Model:             Procedure:         Open the given .hm file and set the Gemoetry color mode to By Topo. It is seen that the given component is a sheet metal component. The thickness of the…

Note: The resolution of the attached images are automatically reduced, so the image quality is reduced.   Objective: Follow the Quality Criteria and mesh the given component and assign thickness. Target Element Length = 4mm           CAD Model:        …

Objective: Create connector and Attach the various parts of the given model  1. Right_Rail_2 & Front_truss_1:- Seam-Quad(angled+capped+L) 2. Left_Rail_2 & Front_truss_1:- Quad elements 3. Front_truss_2, Front_truss_1 & Right_Rail_1:- Spot weld with 3 Layers and 5…

Objective: To create Tetramesh for Housing using following criteria -         Elements sizes: Min- 2mm                                Target-…

Objective:To create 1D elements with the given cross-section and DOF's on the give component. a. Rod element:- with only translational DOF and RBE2 link Cross-Section: BOX- Dimension a= 12 mm                               dimension b=10 mm  …