Week - 2 - Explicit and Implicit Analysis

AIM: 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.Use appropriate boundary conditions to simulate tensile behavior for the model and finally compare the results from your simulation…

AIM: To model spotwelds for the given assembly of parts and run a crash test. MAIN OBJECTIVE: The spotwelds should be modeled using beam elements and solid elements separately. Use the same material card called *MAT_SPOTWELD should be allow for both beam and solid elements. The axial and shear force should be compared…

AIM; To simulate the crash test for a crash box with an different shell thickness and compare the plots of the crash boxes.  PROCEDURE Import the model  Select the model and set the keyword manager for simulation of an crash box. To analysis the crash box, we have to create the  Rwall,velocity, sections,…

 AIM; To perform a Drop test Simulation of a mobile phone on the rigid floor body with suitable keyword Parameters  and plot the results from it. PROCEDURE;  Import the  given Drop_test_onlymesh.k File in to ls dyna GUI. The File Only Consists of the nodes and elements of the Mobile phone and the…

AIM; To slove the given equation with the Implicit and explicit methods with the proper tolerance value and write brief details about the Implicit and explicit method. IMPLICIT METHOD EXPLICIT METHOD No effect of mass (inertia) or of damping. Mass/inertia and damping are included. Static analysis is done using an implicit…

AIM; LS-DYNA doesn't have a default system of units. User needs to input material properties and physical dimensions according to a consistent system of units as per their choice. This warrants that to use LS-DYNA in different circumstances, users has to be conversant with converting quantities from one system of…

AIM; To perform the clean-up of geometrical errors in the given Suspension Assembly model and mesh them with mentioned Quality criteria. OBJECTIVE; For the given assembly, check for the geometrical errors and mesh with the given element Quality criteria. Use tetra elements to model non-uniform thickness components.…

 AIM; To extract the Midsurface to the given model and generate the meshing according to the given quality criteria and apply thickness to the components. PROCEDURE; Import the model in to the Ansa GUI area. 2. we need to use the topo option to clean up the single cons and free edges present in the CAD model.It can…

 AIM; To understand the concept of Morphing and its applications in the New Design Modeling techniques. We have to alter the design of the given geometry with these morphing method. MORPHING; Morphing is the Design change terminology or used to change the design of any componenet without any Numerical Inputs.…

AIM; To perform the Different Connections which are pefer to the component parts of the Rear Door Fe model provided.By using the Nastern deck in the Ansa.  INTRODUCTION TO CONNECTORS; 1.Bolt connector In this Bolt connections are formed between two or more holes, either of shell or solid mesh. Generally, bolt consists…

AIM; To perform the shell mesh and volume mesh for the given Intake manifold model and clear all the quality criteria. Setting the Perimeters. Measuring the model and defeaturing the unwanted construction lines on the geometry. Generating the mesh by using the spot mesh. Creating the Volume mesh.  Here below I'M Attaching…

 AIM; To perform the Tetra meshing(unstructured mesh) for the given Rear view mirror component and mesh the component according to the given Quality criteria. Steps to be for Tetra Mesh; Importing the model. Perform the topo on the given model. Geometry checks should be done. Fix the Quality Criteria. Remove the unwanted…

AIM; To mesh the given switch panel and floor body model according to the quality criteria. Switch panel; Midsurface;     Meshed model with different PIDS. Floor Body;   Geometry checks; Midsurface; Meshed model with different PIDS.    

AIM; To mesh the given Plastic Bottle Cap model, according to the given quality criteria. OBJECTIVE; Import the cad model in to the ansa Gui. Perform the toplogy cleanup on the given cap model. Generate the mesh on the given component. Pass the all given quality criteria.  GIVEN MODEL; PROCEDURE We need to import…

 AIM; Perform the topology geometrical cleanup and generate the mesh on the component according to the given Quality criteria in the Ansa GUI. OBJECTIVE; All the 2D elements in your model should clear the above mentioned quality criteria and the features in the model have to be captured properly with good mesh flow.  …

 AIM;To perform a side pole crash of a neon car biw assembly model. INTRODUCTION;  SIDE POLE CRASH; Side Pillar car crash test is a type of Crash test by making the car to hit a Pillar side. This test is conducted to determine  Distribution of impact force on the BIW structure Intrusion of the dashboard…

 AIM; To analyse the given BIW body model by using the hyperworks(radioss) and hypercrash. INTRODUCTION; BIW refers to the body shell design of an automotive product such as cars. It is just a sheet metal welded structure. BIW will not have doors, engines, chassis or any other moving parts. BIW Types: There are mainly…

AIM; To create the 1D elements on the following component with the given cross-section and degree of freedom. MAIN OBJECTIVE; Creating the 1D elements to the parallel bracket model. Draw the middle surfaces to the given component and create material and properties to both parallel brackets. Make rigid elements on the brackets…

 AIM; To perform the mesh on the given Hood model by following the selective quality criteria. PROCEDURE; First, we import the geometry from the step file(HOOD MODEL).   Then first we need to delete the solids of the entire hood model.  After importing the model we have to set the quality criteria file settings…

 MAIN OBJECTIVE; Create the mesh for bumper assembly, mesh size should be 6mm.  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 then run. Create a new notch in the middle, select the whole section and…

 MAIN OBJECTIVE;  By using the different material laws such as law1(elastic),law2(johnson cook), law36(elastic-plastic tabulated), law27(elastic-plastic brittle material), we have to analyze the plate behavior while applying these different materials. plots the results from the hyper view and hypergraph. check…

  MAIN OBJECTIVE; We have to compare the results with a base simulation and improved shell element properties.   1.Using the crash beam file from the previous assignment, change the run time to 55 ms.Here we import the previous assignment starter file and where we change the run time to 55 m/s and go to analysis…

  Aim: To create the rad file of the rail component and work on the 3D meshing for given models. Questions: 1. Check the material properties of the rail component and calculate the speed of sound in steel rail? Ans; Elemental Time step Δtc = (l/c)=(l/√(E/⍴) Considering the equation, C=√(E/⍴),…

 AIM; To Carry out the geometry cleanup operation on the given models and extract midsurface to those models ,finally generate 2d shell elements on the midsurfaces of the model . PROCEDURE; Import the given models in the hyperworks. Clean the geometry of the given models. Extract the midsurfaces to those models. ignore…

  AIM; To generate mesh for the given floor component in hypermesh.  MAIN OBJECTIVE; Import model from its respective location. The model may be the step/IGS /hm file. Perform the topology clean upon the geometry, Identify and remove all possible errors in the geometry. After visualizing the model, we get…

AIM; The goal is to extract the mid surface, generate the mesh, and to add the thickness to the given side door inner panel using the Following Quality Criteria. MAIN OBJECTIVE; Opening the File. Extracting the Mid Surface. Giving the Quality Criteria. Generating the Mesh. Clearing the Errors. Applying Property. Giving…

MAIN OBJECTIVE; In this challenge, we use different types of connectors and made connections between the part models. 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…

 MAIN OBJECTIVE; To perform the 3D tetra meshing on the given models accordingly to their criteria sizes. PROCEDURE; Import the Model into HyperMesh. Delete the solid from the model, by selecting the delete>solids. clean the geometry. 3D Meshing: criteria Elements sizes: Min- 2mm, Target- 5mm, Max- 7mm …

AIM; To write a  code in Matlab in order to optimize the stalagmite function and find the global maxima of the function by using a genetic algorithm. THEORY; A stalagmite is an upward growing mound of mineral deposits that are caused by water dripping onto the floor of a cave. It is a type of rock formation that…

AIM;To create a simple pendulum in a Matlab for a second-order differential equation.EQUATIONS USED;`(d^2 theta)/dt^2+b/m (d theta )/ dt +g/lsintheta =0`Heregravity(g)=9.81m/s^2length of the pendulum(l)=1mmass of the bob(m)=1kgbeam coefficient(b)=0.05displacement=0angular velocity=3rad/secTime span(t_span)=0-20secOBJECTIVES;To…