Week - 4 - Crash Box Simulation

OBJECTIVE:- The aim of this project is to analyze the crash analysis of box with different shell thickness and also to obtain the different parameters as follows:- Animation of the final simulation Input .k file and output files (d3plot, glstat, sleout, rcforc) Acceleration plot of a node  in the middle of the crashbox…

OBJECTIVE:- To run the simulation in LS Dyna and perform a Drop test of a cellphone. Achieve all the results required during the drop test of a cellphone and analyze its results. STEPS:- Check for the parts and meshed model, rename accordingly. Creating suitable materials like(MAT_024 & MAT_020), Sections and sets.…

AIM: To solve a non- linear dynamic analysis using both implicit and explicit methods. To solve the equation F(u) = u3+9u2+4u, using both implicit and explicit method. Implicit and Explicit analysis are used to solve dynamics problems. EXPLICIT ANALYSIS :- Explicit analysis are the analysis where there is dynamic equilibrium,…

OBJECTIVE:- The objective of this challenge is to convert the given values of the quantity to different system of units. And also prepare a table so that in near future while performing the various challenges of LS dyna it can be used frequently and without any issues. As LS Dyna don’t have any default system of…

OBJECTIVE:- To run the simulation for car crash and obtain various results required. A total of 3 cases has to be performed using parametric settings. Case 1 : Thickness to be 0.3 mm Case 2 : Thickness to be 0.5 mm Case 3 : Thickness to be 0.6 mm PROCEDURE FOLLOWED: Create a new Explicit dynamics module, and assign a new…

OBJECTIVE:- To simulate a  model bullet penetrating into a bucket. We will need to use 3 different non linear materials for the bucket and analyze their behaviour for the same velocity of bullet. PROCEDURE FOLLOWED:- Create a new explicit dynamics model. Add 3 different Non linear materials for three different cases…

OBJECTIVE:- To perform an Explicit dynamics simulation to find out the equivalent stress,  total deformation and also insert a user defined result to calculate temperature of the body. Two case solution will be required for this simulation: Cutting velocity 20000 mm/s Cutting velocity 15000 mm/s. PROCEDURE FOLLOWED:-…

OBJECTIVE:  For this challenge, we have to perform the tension and torsion test on the specimen provided.  For the tension test, displace one end of the specimen to 18mm while keeping the other fixed. For the torsion test, We need to displace one end of the specimen to an angle of 1200 degree. total deformation equivalent…

OBJECTIVE:- To Perform a transient structural analysis on a worm gear assembly.  We need to cut the gear by half so as to bring the model within limits. Obtain results for Equivalent stress Equivalent elastic strain and The total deformation in the model. We can use a finer mesh while performing the challenge and…

OBJECTIVE:- To Perform a transient structural analysis on a double universal joint with a spring using 3 different material. Case 1 : Structural steel material Case 2 : Stainless steel Case 3 : Titanium alloy Also we need to obtain the Total deformation & Equivalent stress for all the 3 case materials. PROCEDURE FOLLOWED:-…

OBJECTIVE :- To perform a Transient Analysis on Piston & Cam Mechanism model. We have to run the simulation for 3 different cases. Frictionless contact Frictional coefficient= 0.1 Frictional coefficient = 0.2   Also find out the following results: Directional Deformation Equivalent stress Equivalent Strain &…

OBJECTIVE:- To simulate the model for bending of an iphone as per the cases below:- Case 1 – Simulate the model as per the steps in the video we studied. Case 2 – Move the fingers to the given position X=22.5 mm & Z=10 mm and simulate the model. Also define the S-N curve for the Aluminium Alloy material…

OBJECTIVE:- In this challenge we have to simulate an analysis to perform the bending of wire in ANSYS. For this challenge we have to perform the simulation for 3 different materials, Copper alloy Non linear Aluminium alloy Non linear Magnesium alloy Non linear.   PROCEDURE FOLLOWED:- Starting from create a new static…

OBJECTIVE:- To perform the analysis to simulate a sphere pressing on a plate. The sphere will be of the structural steel linear material whereas the plate will be of structural steel Non-Linear material. The sphere to be pressed on the plate to a distance of 4 mm and retracted back. The plastic deformation to be tabulated…

OBJECTIVE:- To run the simulation for a work-piece made of copper. Initially its length has to be increased by 60 mm and its thickness has to be decreased by 8 mm on both sides. PROCEDURE FOLLOWED:- Create a new static structural, and add a new material from engineering data, copper alloy from general non linear materials.…

OBJECTIVE:- Simulate three different types of welding using three different weld materials.The weld materials which are to be used are as follows:- Stainless steel Aluminium alloy Bronze   PROCEDURE FOLLOWED:- Create a new static structural model, Edit the engineering data and add a new material stainless steel, Aluminium…

OBJECTIVE:- To run the analysis for the sheet metal bending process for 3 different cases as described below:- Case 1:Aluminium Alloy 1199( mentioned in the course video),Copper Alloy NL and Magnesium Alloy NL. Find out the Equivalent stress, Equivalent elastic strain and Total Deformation in Y direction and…

OBJECTIVE:- To perform a structural analysis on track and Rail-wheel and also obtain the various results such as Total deformation, Equivalent stress & Life of the model. PROCEDURE:- Create a new static structural model, Assign the material as Structural steel and import the geometry provided. If any changes need to…

GRID DEPENDENCY TEST:- Grid dependency test, a test on a test-piece or model where an analysis starts with the coarser mesh and it is then refined for better results. A solution can never be trusted, unless we check whether, the result depends on the grid or not. The output result of a coarser mesh and the finer mesh can…

OBJECTIVE: To perform various analysis on spur gear and conclude a better material based on our analysis. Case wise analysis is to be performed in which we are given 3 material which has to be assigned and studied. PROCEDURE FOLLOWED:- Import the STP file and assign engineering data to it. We have 3 cases according to…

Objective:- To design the two Case based model. After the modelling of the two plates stress and deformation is to be calculated and compared. Post calculation which will be the best design has to be selected. The material selected for both the cases are Structural steel having Young’s modulus : 2e+05 MPa Poissons’…

Objective:- To mesh the given component using the various tools we have with us. Check for the geometrical errors and mesh with the given element Quality criteria.   Tools used:- Insert-hotpoints Project hotpoints Delete hotpoints Release cons Project cons Cut faces Delete faces New faces Set PID Project cut Offset…

Objective :- To mesh the given model using the given target element length, which satisfies all the quality criteria provided. The model provided is of a dashboard panel of a car which is to be worked. Tools used:- Offset – Skin Insert hot-points Release cons Paste cons Faces-cut Faces-delete Faces- new Faces –…

  Shape optimization for industrial applications is now extensively used in the industry. Manufactures in different industries are gradually adopting optimization strategies and shape optimization in particular in their product development cycles. It is to develop more user friendly products to meet the growing requirements…

OBJECTIVE:- To establish connections in between different parts of rear door of a car. The car goes through a lot of vibrations during a run, so to perform an analysis on any part of the car a good connection must be established in its part. Also if there is any missing connection it will deviate our simulation result…

Conclusion:- The tetramesh generated satisfies all the given quality criteria required for the tetra.

Objective:- For the given component, check for the geometrical errors and mesh with the given element Quality criteria. Use tetra elements to model the component and there should not and kinks and dips on the surface of the component. S.No  Quality Criteria  Value  1 Target/Average length   1 2…

Model 1- Approx 6 hours and 50 minutes   Model 2 - Approx 4 hours and 30 minutes

Objective:- Mesh the given component using quality criteria and also assign the thickness to the geometry. For the given component check for geometrical errors and elemental errors. Quality Criteria:- S.No  Quality Criteria  Value  1 Target/Average length   1 2 Minimum Length  0.5 3 Maximum…

Question: For the given component, check for the geometrical errors and mesh with the given element Quality criteria. After meshing the component the thickness has to be assigned. Write a detailed report on your meshing process and also mention which method you used to extract the mid-surface along with the reason. …

Objective:- To perform a side crash analysis by using the hypercrash. The following changes needs to be made prior to running the simulation. Check the unit system. Create appropriate interface with friction value as 0.2 and recommended parameters. Correct rigid bodies if any issues. Create a rigid wall with friction as…

Objective:- To run and analyze the frontal crash of a BIW car model. It is done to study the crash analysis of a car during frontal crash and to study the behavior of the model in various parts during collision. Import the model. Check for unit system. In our model I am proceeding with kg mm ms. On comparing with the original…

Objective:- To simulate Six different cases and plot the Contact forces , Rwall forces, and Internal energy. Compare all the six simulation results and brief on it.  Test cases: To run the crash model as it is without any change in its parameters. Change the inacti to 6 and then run the simulation. Create type 11 contact…

Objective: To change the component property and there after run the simulation and compare their parameter for various cases.   Procedure followed: Import the Johnson failure file. [FAILURE_JOHNSON_0000.RAD] We have  to run the simulation with law 2 , failure Johnson, law 27 and law 36. So as per the cases required…

Objective:- To compare the results of simulations of both the Raw model and the model with the properties being changed. Procedure followed:- Import the geometry which is to be simulated.   CASE  1 Check the properties for case 1 and without changing  proceed by saving the radioss file   Energy and…

Answer1:- The E value and rho value as checked by the given model property, we get it as E= 210000 Rho= 0.0078 So, c = `root`E/rho On solving we get, c = 5188 mm/ms   Answer 2:- The time taken by a wave to travel the rail of 1000 mm is calculated using T=l/c i.e. T= 1000/5188 thus T= 0.1927 ms   Answer 3:- Time…

PART 1 Objective:- To perform various preprocessing activities to the given component using geometry cleanup, mid-surface, 2D meshing and elemental cleanup, and finally assigning the property and thickness to component as per the quality criteria. Target element size- 5 mm Minimum element size – 3.5 mm Maximum element…

Objective:- To mesh the given inner door panel, and also apply quality criteria. Assign thickness to the respective part of the component. Target Element Length = 4 mm   S.No         Quality Criteria        Value 1             …

Objective:- To attach the various parts of the given model using connector.   Tools used:- 1D connectors Seam 1D connectors Spot 1D connectors bolt Quick edit panel(split surface using node and line,etc) Node edit(align node) 2D automesh   Procedure followed:- Import the Hm file Do manual autocleanup wherever required.…

Model 1 Objective: To Mesh the given component 3 dimensionally. Target size = 5 mm Minimum element size= 2 mm Maximum element size = 7mm Tet collapse= 0.150   Tools used: Quick edit( toggle edges, Split surf node, Replace points) Automesh command(using only tria elements) Check elements 3d tetra remesh(with remeshable…

Objective:-  To mesh the  Hood component and Check for each and every element to fulfill the criteria as stated below. Target Element Length = 5mm S.N Quality Criteria  Value  1 Aspect Ratio  5 2 Skewness 45 3 Warping 15 4 Taper      0.5 5 Min. Length 2mm 6 Max. Length 8mm 7 Min angle Quad 45 8 Max angle Quad 135 9 Min…

Solution :- Import the IGES file using import with geometry command, Using midsurface command, extract the midsurface of the upper bracket. Name this bracket as bracket1 Again using midsurface command extract the lower bracket. Midsurface command is used because of the reason that if we perform the meshing and use analytical…