week-11 Joint creation and Demonstration

Automotive Underbody Coatings: Underside of vehicles serves as an intermediate between metal components of a vehicle and outer environment, underbody of vehicle is prone to damages due to harsh environmental conditions. coatings are applied to the underside of vehicles to protect them against factors such as corrosion,…

Benchmarking: It is the process of company business to analyze the process and performance metrics from other company standards In automotive industries it is used for similar products, services and on dimensions performance. Used to know the availability of the feature and delivery on the basics of customer review It…

Aim: In this project, ANSA pre-processor is used to check for geometrical errors on the given suspension system and mesh the component with the given quality criteria using tetra elements where thickness is not uniform and with mixed elements (Tria and quad) where the thickness is uniform (thickness less than 5mm) Also…

Objective: To Perform the geometric topology and to extract the midsurface to generate 2D Meshing for the given Instrument panel model according to the given element quality criteria and assign thickness to the shell elements using ANSA.     Abstract: In this project, ANSA pre-processor is used to generate midsurface using…

 Objective: To Import the given model into ANSA and check for geometrical errors then to practice all the morphing techniques as shown in the demonstration. Procedure: 1. To Import the given model into ANSA, then check for geometrical errors 2. If any errors were seen it has be cleared using various options available in…

Aim: To provide appropriate connection to the given back door model using NASTRAN deck in Ansa. Procedure: 1. The given FE model of the back door contains only one PID, so first we needed to Separate it into different PID's appropriately. 2. Then we need to check the model thoroughly after which we can proceed…

Objective: To perform Transient-non linear bird strike simulation where the birds hits the gas turbe blades - Using LS-Dyna  Theory: Bird strikes are a major threat to aircraft structures, as a collision with a bird during flight can lead to serious structural damage. Computational methods have been used for more…

Objective: To crearte a hyperelastic material model from the given experimental data and compare the results Theory: Hyperelastic material is ideally for elastic material for which stress strain relationship derives from a strain density function. The hyperelastic material is a special case of a Cauchy elastic…

Objective: To create Cylindrical,Translational,Revolute & Spherical joints between two Rigid and two deformable bodies using Ls-Dyna solver. Theory: A Mechanical joint is a section of a Machine that is used to connect one or more mechanical parts to another. A mechanical joints may be permanent or temporary most…

Obejective: To create material model with for MAT_24 PIECEWISE_LINEAR_PLASTICITY card from the given raw data using Data digitizer and LS-Dyna. Procedure: Case setup & Execution: 1. From the given image of material curve the data points are extracted using data digitizer  2. Then the extracted data…

Objective: To perform mass scaling on the given model to reduce the runtime and to compare the runtime with Implicit and Explicit method. Theory: Time step: In FEA time step is the time required for a shock wave to propogate across the smallest element, A run in asingle model simulation starts at time zero and continues…

Objective: To perform a Head impact analysis on a child pedestrian head using LS PREPOST and calculate the Head Injury Criterion (HIC) for different cases. Theory: Pedestrian safety simulation is a part of vehicle safety engineering, In pedestrian safety we look for imparting minimum injury to body parts such as head…

Objective: To Create a block of 10mmx10mmx10mm dimension with 10 elements for each direction and to use the material card attached (Ogden_Material.k) , then simulate using approximate boundary conditions with the element formulation of 1,2,-1,-2 and comparing the results by plotting Engineering stress vs…

Objective: To model the spot-weld for the given assembly parts using beam and solid elements separately. Also, perform the crash analysis for the same and compare the output results of the beam and solid spot-welds. Procedure: Case setup & Execution: 1. Importing the model: Open the keyword file in spotweld-assignment.k LS…

Objective: To create a complete simulation file for the given .K file to perform drop test simulation of a mobile phone with a rigid plate  Procedure: case setup & Execution: 1. The given Drop_test_onlymesh.k is imported into LSPP  2. The File Only Consists of the nodes and elements of the Mobile…

Introduction: When a Structure response ( deformation, stress and strain ) is linearly proportional to the magnitude of the load ( Force, Pressure, moment, torque, temp etc.,) then the analysis of a structure is known as linear analysis whereas the load to response relationship is not linearly proprortional then the analysis…

Objective: To convert the given measurements in the below mentioned system of Units. Kg cm ms, Kg cm s, gm mm ms, kg m s, g cm s, g cm us, g mm s, ton mm s, slug ft s, kg mm s, g cm ms & kg mm ms . A system of units: The system of units is the complete set of units, both fundamental units and derived units, for all…

Objective: To Extract the midsurface of the given component and to mesh then assign thickness to it with a target element length of 5 mm and the rest of the quality criteria as follows:  S.No Quality Criteria  Value  1 Aspect Ratio  5 2 Skewness 45 3 Warping 15 4 Taper      0.5 5 Min.…

Obejctive: To Extract the midsurface of the given component and to mesh then assign thickness to it with a target element length of 4mm and the rest of the quality criteria as follows:  S.No Quality Criteria  Value  1 Aspect Ratio  5 2 Skewness 45 3 Warping 15 4 Taper      0.5 5 Min.…

Objective: To mesh the frame assembly and make connection representation at specified parts. Required connections: 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…

Objective: To Create 3D Mesh for the given three components in hypermesh using the following quality criteria Elements sizes: Min- 2mm, Target- 5mm, Max- 7mm Tet collapse: 0.15 for the housing model and a target element length of 6mm for crank housing and chassis model. Procedure: 1.Housing model: Case setup & Execution:…

Objective: To Perform side impact crash analysis on the given BIW component of the car and observe the changes in the model. Theory: Crashworthiness is the ability of a structure to protect its occupants during an impact. This is commonly tested when investigating the safety of the vehicles. Several criteria…

Objective: To Perform Frontal crash analysis on the given BIW component of the car and observe the changes in the model. Theory: Crashworthiness is the ability of a structure to protect its occupants during an impact. This is commonly tested when investigating the safety of the vehicles. Several criteria are…

Ojective: To extract the midsurface of the given component and to mesh it with a target element length of 5mm and the rest of the quality criteria as follows: S.No 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…

Objective: To mesh the given component and perform the following  Creat 1D elements on the following component with given cross-section and DOF a. Rod element:- with only translational DOF and RBE2 link Cross-Section: BOX- Dimension a= 12 mm                    …

Objective: To create the mesh for the bumper assembly and establish connections and to analyse different type of contact surfaces and compare their results . Procedure : To create mesh for Bumper assembly: 1. Import the given model into hypermesh 2. Perform geometric cleanup on the model. 3. Create the mesh…

Objective: To analyse different type of material properties and compare their results as follows: 1. Total number of cycles, Energy error, mass error and simulation time. 2. Notice the animation of all 5 and describe the animations in brief on the basis of whether the elements are being deleted or cracked. 3. Plot…

 Objective: To compare base simulation and improved shell element properties: 1.Using the crash beam file from the previous assignment, change the run time to 55 ms. 2.Change the number of animation steps using simulation to a minimum of 25 and maximum of 60. 3.Run the base simulation without any modification to element…

Objective: To create 2D and 3D mesh for the given components and to solve the following questions  Procedure and answers as follows: 1.Material property of the rail component can be checked in the .0000 file, Density `rho`= 0.0078 `g/(mm^2)` and youngs modulus E = 210000 `g/((ms^2)(mm^2))`, the units…

                           SOLID MESHING ON REAR VIEW MIRROR USING ANSA   Objective: To perform geometric topology on the given model and perform solid meshing or tetrahedral meshing as per the given quality criteria using ANSA.   S.No Quality…

Geometric Topology, Mid surface Extraction and Meshing of a Bottle cap model using ANSA    Objective: To Perform the geometric topology to the given model and extract the midsurface to generate 2D Meshing for the given bottle cap model according to the given element quality criteria and assign thickness to the…

Geometric Topology, Mid surface Extraction and Meshing of a Car Hood model using ANSA    Objective : To Perform the geometric topology to the given model and extract the midsurface to generate 2D Meshing for the given hood component of a car according to the given element quality criteria using ANSA. Sno.  …