Week-6 Calculate the Stretch Ratio by comparing the ELFORM (-2,-1,1,2) with Ogden_Material Model.

Objective: To 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 below figure. To use appropriate boundary conditions to simulate tensile behavior for the model and finally compare…

Objectives: To model the spotwelds and simulate a crash test for which the meshed file has already been given. Two types of spotwelds have to be modeled viz. using beam elements and using solid/hexa elements on the crashbox at the region specified in the challenge, in a symmetric manner. The number of spotwelds should…

Objective: To simulate a crash test for a crash box for which the meshed file has been given. A rigid wall has to be created in front of the crash box, and the crash box has to be impacted on this rigid wall with a velocity of 50kmph. The rigid wall can be created using the *RIGID_KEYWORD.  The material that the crash…

Objective: To perform a simulation for the "Mobile Drop Test" on the floor and analyze the results in "LS-DYNA". Introduction: A meshed model containing 3 components was provided in the challenge in the '.k' file format. The 3 components were the mobile phone with solid elements, floor with shell elements, and another…

Objective: To solve the given equation with both the explicit and implicit methods and plot the graphs of Force v/s Displacement for the methods. Introduction: Explicit and Implicit methods are two different types to approach any Ordinary Differential Equations (ODE) and Partial Differential Equations (PDE), which numerically…

Objective: To check for the geometrical errors and mesh the given assembly with the given quality criteria. After meshing the thickness has to be assigned for mid surfaces. To use tetra elements to model non-uniform thickness components. To give appropriate connections after meshing. Quality Criteria for Tria Elements…

Objective:   To convert all the given SI unit quantities in to the mentioned quantities and unit systems. Along with this, mention the conversion factor that is used to convert into those particular quantities. Show a detailed calculation for the conversion of the quantity ‘gm/mm/ms’. Introduction: The…

NOTE: THE ANSA FILE OF THE MODEL HAS SOME ISSUES WHILE UPLOADING, HENCE A SEPERATE GDRIVE LINK OF THE MODEL HAS BEEN INSERTED AT THE END OF THE REPORT    Objective:  To check for the geometrical errors, extract the midsurface of the component, and mesh with the given element quality criteria, and to assign…

Objective: To practice all the morphing techniques and morph the given sheet metal model according to the one shown in the respective video, and prepare a report on various cases of morphing used in the industry. Introduction: Morphing is a module in “CAE” or in “ANSA”, which enables the user to…

Objective: To deploy different types of 1D connection at specific areas on the Rear Door of a vehicle. Introduction: In product integration stage in “FEA”, connections play a very important role. After meshing all the parts and components of a product or model, they are integrated by deploying suitable connections…

Objective: To perform topology cleanup and generate a 3D Volume Tetra mesh for the intake manifold according to the given criteria. Procedure: The model was imported and the topology of the model was cleaned up. Some minor fillets which were less than the minimum length of 1mm were defeatured as they would have led…

Objective: To check for the geometrical errors and mesh the ‘Rearview Mirror’ model with the given quality criteria, use tetra elements to model the component and there should not be kinks and dips on the surface of the component. The quality criteria are given below: S.No  Quality Criteria  Value …

Objective: To extract the midsurface and mesh the bottle cap component provided in the challenge according to the quality criteria in "ANSA". Introduction: The quality criteria according to which the model has to be meshed is as follows. S.No  Quality Criteria  Value  1 Target/Average length  …

Objective: To mesh the plastic Switch panel model of a vehicle door, and a floor component according to the given quality criteria in "ANSA" "CAE". Quality Criteria:  S.No  Quality Criteria  Value  1 Target/Average length   4 2 Minimum Length  2 3 Maximum Length  6 4 Aspect …

Objective: To mesh the Hood model provided in the challenge according to the given quality criteria. The quality criteria specified in the challenge is as follows: S.No  Quality Criteria  Value  1 Target/Average length   5 2 Minimum Length  2 3 Maximum Length  7 4 Aspect  3 5 Warpage…

DODGE NEON ROOF IMPACT TEST: Objective: To simulate the roof crush or roof impact analysis of the Dodge Neon model using 'CAE'. This project was done to analyze the deformation, stresses, and strains produced in the vehicle during a roof impact analysis. Introduction: A crash test is usually done to analyze the vehicle…

DODGE NEON SIDE CRASH ANALYSIS (POLE IMPACT) Objective: In this project, the side portion of the Dodge Neon car was crash tested to analyze the deformation and various types of forces produced during a side crash scenario on a rigid pole with a speed of 35mph in 'HYPERMESH'. Along with this, the following outputs had to…

DODGE NEON FRONTAL CRASH ANALYSIS Objective: In this project, the frontal portion (up to B-pillar) of Dodge Neon car was crash tested to analyze the deformation and various types of forces produced during a frontal crash scenario on a rigid wall with a speed of 35mph. Along with this, the following outputs had to be requested…

Objective: To mesh the Bumper model provided and to simulate the Crush Tube with different types of Interface cases. Following are the 6 cases according to the which the interfaces had to be set up: 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…

Objective: To analyze the rupture plate with 7 different cases of material cards, and compare all the results. The 7 different cases of material cases are as follows: Run the given model as it is and name it as ‘Law2_epsmax_failure. In /FAIL/JOHNSON, change Ifail_sh=1, Dadv=1, Ixfem=1. Run the model as ‘Law2_epsmax_crack’.…

Objective: To run the base simulations with the specified run time and animation frequency. To change the properties of the model according to the specifications and run the simulations. Following questions activities to be performed: Comparison of results with base simulation and improved shell element properties Using…

While saving this model, the maximum number of nodes was exceeding the 100000 limit and therefore could not be saved. Hence the ‘hub’, and ‘knuckle arm’ components from the reflected side had to be deleted.   Objective:   To create tetra mesh (3D meshing) for the given models and check…

Objective: Check the material properties of the rail component and calculate the speed of sound in steel rail. The length of the rail is about 1000 mm. Calculate the time takes for a shock wave to travel from one end of the rail to the other. Time for sound to travel length of rail. Edit the engine file…

Objective: To mesh the 'SIDE DOOR' plastic part of a vehicle for the below given quality criterias. Target Element Length: 5mm Aspect Ratio : 5 Skewness : 45 Warping : 15 Taper : 0.5 Length : 2 Length : 6 Min Angle Quad : 45 Max Angle Quad : 135 Min Angle Quad : 20 Max Angle Quad : 120 % of Tria : 10 Introduction: In this…

Objective: The main objective of this challenge was to learn about the use and application of different types of connectors, and connect various parts of the model. The specific connectors to be used to connect different parts as per the given data are as follows: ‘Right_Rail_2’ & ‘Front_truss_1’: ‘Seam-Quad…

Objective: ‘Housing’ Model: To clean-up the geometry provided in the challenge using different topology clean-up tools. ‘Plastic’ Model: To clean-up the geometry and create a mid-surface for the given model. Introduction: This challenge is about cleaning up the geometry of a model for any errors…

Objective: To mesh the hood of a vehicle along with its other components like, latch reinforcements, hinge reinforcements, and the inner body for the below given quality criterias. Target Element Length: 5mm Aspect Ratio : 5 Skewness : 45 Warping : 15 Taper : 0.5 Length : 2 Length : 8 Min Angle Quad : 45 Max Angle Quad…

Objective: To create different types of 1D element specified below in the geometry of Parallel Brackets, and assign the material and properties. Introduction: 1D Elements are the elements having dimension in only one direction i.e. X, Y, or Z. 1D elements are represented by a line. A 1d element has 2 nodes, each at both…