Week - 10 Hyperelastic Material Models

TITLE: BIRD STRIKE IN AERO ENGINE Bird-strike events are relatively common, occur most often on the ground or at low altitude. However, bird strikes can have significant economic and occasional safety consequences for flight operations. Pilots and operators should be knowledgeable about the hazard, and flight crews should…

TITLE: JOINR CREATION AND DEMONSTRATION OBJECTIVE: To create different joint like spherical, revolute, translational and cylindrical in Ls-Dyna. Common Procedure: Geometry is created using Mesh->Shape mesher option. Few keywords are commonly used in all the joints like MAT,SECTION, Control_Termination, Control_timestep,…

TITLE: HYPERELASTIC MATERIAL MODELLING. OBJECTIVE: To model a hyper elastic material from Raw data of stress and strain and compare the results with final simulation results. Hyper Elastic Material: A hyperelastic or Green elastic material is a type of constitutive model for ideally elastic…

TITLE: MATERIAL MODELLING FROM RAW DATA OBJECTIVE: To create material from raw data using strain stress curve Dog bone specimen is used to test the material model. MAT024 material card is used to model the data. Unit = kgmmms extracted data using digitizer software. As the curve obtained from this data is in Ksi unit systen…

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TITLE: CALCULATE THE STRETCH RATIO BY COMPARING ELFORM(-2,-1,1,2) WITH OGDEN MATERIAL MODEL. OBJECTIVE: TO PERFORM A TENSILE TEST ON A CUBE MODEL(10mm X 10mm X10mm) AND COMPARE THE STRETCH RATIO FOR DIFFERENT ELFORM. PROCEDURE:  Creating mesh model. Defining the boundary conditions. Defining the section and material.…

TITLE: MODELLING OF SPOT WELD AND RUNNING A CRASH SIMULATION. OBJECTIVE: To run a simulation by creating spot welds between two plates and rigd wall. SPOT WELD: Spot welding (or resistance spot welding) is a type of electric resistance welding used to weld various sheet metal products,…

TITLE: CRASH BOX SIMULATION USING LSDYNA OBJECTIVE: TO CREATE A RIGID WALL AND PERFORM A CRASH BOX SIMULATION USING LS DYNA. At first I opened the mesed model of box in LS prepost and then look for part card and rename ita s box. Then I create a rigid wall using create option then rigid and 1+N option from the box. After…

TITLE: CELL PHONE DROP CHALLENGE OBJECTIVE: To perform a cell phone drop simulation from scratch model using LSDYNA keywords. At first mesh model is loaded in prepost using .k extension file. Then measurement is done using measure option in element tool. From this measurement I can know the unit system that I have to use…

TITLE: MODELING OF A REAR SUSPENSION OF A VECHICLE OBJECTIVE: TO MESH A REAR SUSPENSION OF A VECHICLE AND CONNECT THEM USING CONNECTORS. Firstly the model is checked part by part and then single part is taken for geometry check. Then I started the model from right to left i.e from tire. For Tyre component tetra mesh is…

TITLE: MESHING OF A DASH BOARD SUB PART OBJECTIVE: MESHING A PART OF DASH BOARD OF A VEHICLE IN GIVEN QUALITY CRITERIA. At intial stage geometry check is done to check single cons triple cons and cracks etc. Geometry is clean using auto fix option and the parts which at are not fixed automatically are fixed manully by…

TITLE: TO CONNECT THE PARTS OF REAR DOOR USING ANSA IN A FE MODEL. OBJECTIVE: To connect the components of rear door for NVH using diffrent connections. The connections in the ANSA is used for connecting diffrent parts of the model.There are different kind of connections in ANSA but in this component we use RB@ type, Spot…

TITLE: TETRA MESHING OF A REAR VIEW MIRROR  OBJECTIVE: To mesh a rear view mirror of a vehicle using tetra mesh. Given Quality Criteria. At first geometry check is done using geomery option from check box. Geometry check is done for cracks,single cons and unusal parts connection. Then using auto fix ,I fixed the model…

TITLE: MESHING OF BOTTLE CAP USING ANSA OBJECTIVE: To fix all the geometrical errors and mesh the bottle cap in the given quality criteria. Given quality criteria Now I go for geometry check, here we check for any geometrical errors like single con, cracks etc. Then I use auto fix option to fix the geometry and remaining…

TITLE: MESHING OF A HOOD COMPONENT OBJECTIVE: To mesh the component in the given criteria. Firstly I took the upper portion of hood by pid I turned off other components. Then I check the geometry for any cracks. Then I recitify the defects in geometry using autofix option. Then I recitify the remaining parts manually which…

TITLE: EXPLICIT AND IMPLICIT ANALYSIS   Implicit and Explicit are two types of approached that can be used to solve the finite element problem. The implicit approach is useful in problems in which time dependency of the solution is not an important factor [e.g. static structural, harmonic, modal analysis etc.] whereas…

TITLE: DATA ANLYSIS USING PYTHON OBJECTIVE: To analyse the data of an engine file. PROCEDURE: At first imported the matplotlib and numpy module. For compactibility check used try and except loop. Now writing the code to plot the curve between two parametres. Now I write code to take inputs of colums between 1(included)…

TITLE: CURVE FITTING OBJECTIVE: To write a python code for curve fiiting of a mathematical expression. Answers to the questions 1.  popt is an array containing the value of the  coefficients "a,b,c,d" 2. The pcov variable contains the covariance matrix, which indicates the uncertainties…

TITLE: TO SOLVE 2ND ORDER DIFFERENTIAL EQUATION USING PYTHON OBJECTIVE: To solve 2nd ODE and create animation of pendulum.   In Engineering, ODE is used to describe the transient behavior of a system. A simple example is a pendulum The way the pendulum moves depends on the Newtons second law. When this law is written…

TITLE: AIR STANDARD CYCLE OBJECTIVE: To write a python code to create PV diagram of an air standard cycle and also to determine the thermal efficiency of an engine. OTTO CYCLE: 1.Isentropic Compression process(1-2) 2.Constant Volume heat addition(2-3) 3.Isentropic Expansion process (3-4) 4.Constant Volume heat rejection(4-1)…

TITLE: IPHONE 5S BENDING USING ANSYS WORKBENCH OBJECTIVE: To perform an bending analysis of iphone 5s. CASE 1 1.GEOMETRY SETTING At first materials are imported from the library. Aluminium alloy for the frame Glass for the Display polyethylene for the interior body of the phone. Now I look at the model in Design modular…

TITLE: CAR CRASH SIMULATION OBJECTIVE : To perform parametric study of a car crash simulation using explicit dynamics. At first I drop down the explicit dynamics module. Then I add the material from the library i.e stainless steel non linear for the car body. Then I import the geometry in space claim. Then I apply parametric…

TITLE: BULLET PENETRATING A BUCKET OBJECTIVE: To perform an analysis on a bucket penetrating bullet. In this simulation 3 different kinds of non-linear  materails are used to observe the results. At first model is imported in space claim and cheked for error. Then I look for the mesh of the model. Then I difine the…

TITLE: MACHINING WITH PLANER OBJECTIVE: To perform an explicit dynamic simulation to find out the results on work piece. At first I drop down the explicit dynamics in ansys work bench. Then I look for the materail in library.Here I use Steel 1006 material. Then import the model in space claim and look for errors. Then…

TITLE: TENSION AND TORSION ANALSYS OBJECTIVE: To determine tension and torsion test on specimen. CASE 1: TENSION TEST Firstly drop down the explicit dynamics and perform the simulation. Material used for the specimen is Steel 1006. Then import the geometry and look for errors in space claim. Then I look for mesh. Then…

TITLE: WORM GEAR ANALYSIS OBJECTIVE: To perform a transient structural analysis on worm gear assembly. Materials used in the simulation is structural steel. First I look for the geometry in space claim and cut the gear into two parts using extrude option. Then I define contacts and joints. Then I look for the mesh. Then…

TITLE: UNIVERSAL JOINT ANALYSIS OBJECTIVE: To perform an analysis on universal joint. At first materials selected from the library of ansys workbench. Structural steel Stainless steel Titanium alloy Then I look for the geometry in space claim. After this I apply joints to the model. Then I look for the mesh. Then I apply…

TITLE: LONG PISTON WITH CAM MECHANISM OBJECTIVE: To perform a transient analysis on long pistion and cam mechanism. Material used in this simulation is structural steel. Then import the geometry in space claim and look for any geometry error. Now I look for contacts in the model. Now I use joints option to assign the joints.…

TITLE : WIRE BENDING OPERATION OBJECTIVE: To perform wire bending operation on different materials of wire. At first added the material from libraray of ansys work bench. Then look for the geometric error on space claim. Then I look for contacts i.e between wire- lever and wire -wheel. Now I go for meshing and use face…

TITLE: SPHERE PRESSING ON A PLATE OBJECTIVE: To press a sphere in a plate and observe the deformations, Stress & Strain values. Firstly we are using 1/4 potion of a sphere to save our time to solve the problem.As all the 4 potions are identical so we can calculate for the whole model further. At first I choose the…

TITLE: ROLLING OPERATION ON COPPER SHEET OBJECTIVE: To perform rolling operation on copper sheet and find out the different results. At first the material is selected from the materials library of the ansys workbench. Copper alloy is selected as material. Then imported the geometry and make some changes as required. Now…

TITLE: VERIFICATION OF WELD JOINTS OBJECTIVE: To verify the weld joints in different materials. At first I choose the materials for the simulation. I choose 4 different kind of materials i.e stainless steel,Aluminium alloy,Bronze and Copper. Then I import the geometry of the model. Then put the boundary conditions such…

TITLE: RAIL WHEEL AND TRACK OBJECTIVE: To perform a static structural analysis on Rail wheel and track. At first material is assigned to the model and it is assigned as structural steel. Then the geomertry is designed and imported in the ansys workbench. Then the model is meshed with 50mm body and 35mm to the connecting…

TITLE: BEVEL GEAR CHALLENGE OBJECTIVE: To perform a grid dependency for the bevel gear simulation. Grid Dependency Test: The grid dependency test basically repesents the calculation of results in fine as well as loose mesh. Basically test compute the solution on successively finer grids.The difference between two refinements…

TILE: SIMULATION OF SPUR GEAR  OBJECTIVE: To simulate spur gear and compare the results of different materials. Case 1: For the first case I take caste iron(ductile) as material and perform the analysis. I took data of materail from the given data libraray of ansys workbench for granta design materials. Next step…

TITLE: MESHING THE BACKDOOR COMPONENT OF AN AUTOMOBILE OBJECTIVE: MESHING THE BACKDOOR MODEL OF A HATCHBACK CAR. Firstly I look for the different components of the Back door. Then I take one component for meshing i.e Lower body. Then I create mid surface for the component and Look for auto correction. Then I split the…

TITLE: STRESS CONECTRATION ON A PLATE WITH HOLE OBJECTIVE: To compare the stresses on two plates containg hole. Ansys version:2020 case1 At first a plate is design with hole with the given dimenisons in space claim of anysys workbench. The following are dimensions Length=300mm breadth=120mm thickness=30mm diameter of hole=60mm…

TITLE :2D MESHING OF THE MODEL OBJECTIVE: MESHING OF THE COMPONENT IN THE GIVEN CRITERIA At first I use auto mid surface option to crate the mid surface. Then I clean up the geometry of the model manually. Then I use auto mesh option to create the mesh. Finally I look for the quality criteria. RESULT: GOOD MESH IS OBTAINED…

TITLE : MESHING OF THE FOLLOWING PLASTIC COMPONENT OBJECTIVE : Meshing the components in the given above criteria. At first I look for the different components but it is seen that the model in is single component. Then I use split option to trim the surface in 4 parts. Then I use organise option and and create another…

TITLE: ROOF CRASH OF A BIW MODEL OBJECTIVE: ROOF CRASH OF A BIW MODEL AND ANALYSING THE RESULTS. Changes made to the impactor.• A 180° rotation about the global z-axis• A 5° rotation about the axis through axis AB• A 25° rotation about the axis through axis AC• A translation to put…

TITTLE: SIDE CRASH OF A BIW MODEL OBJECTIVE: TO DETERMINE THE RESULTS AND DAMAGES DONE ON A SIDE CRASH OF A BIW MODEL. Initailly I look for the conditions mentioned by the instructor. Unit sysytem used is [Kg mm ms]. I have make sure that there is no penetrations. Created a rigid wall with 0.1 friction. Used time…

TITLE: FRONTAL CRASH OF BIW MODEL OBJECTIVE: TO DETERMINE THE RESULTS OBTAINED DURING THE FRONTAL CRASH OF A BIW MODEL. Initailly I look for the conditions mentioned by the instructor. Unit sysytem used is [Kg mm ms]. I have make sure that there is no penetrations. Created a rigid wall with 0.1 friction. Used time…