Hyperelastic Material Models LSDYNA

Question 1  Question 2 As per the above steps that are shown in the images are followed for every CSV file of alumni to import.  Ques 5 Import first 1500 rows of tables (College_A_HS, College_A_SE, College_A_SJ, College_B_HS, College_B_SE, College_B_SJ) into MS Excel. same procedure for all other tables 13. Import…

Ques 1 Create new schema as ecommerce   Ques 2 Import .csv file users_data into MySQL

AIM To mesh the given bumper model with 6mm size and run the crash tube model by using different types of contact interfaces. Objective: 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…

AIM:  To run the simulation for the plate and rigid ball by using johnson cook material and elastoplastic material with brittle failure as per the cases given in the question by using Radioss solver. Objective:  Run the simulation for all the cases given in the question Run the simulation by changing the material,…

 Comparison of case 1 and case 2 : S.no                           Characteristic                           …

AIM Procedure: Import RAD File Check material properties of the rail component and calculate the speed of sound in steel rail  Rho_initial = 0.0078 is the initial density and E = 210000 is young's modulus speed of sound in the material(c) = √(E/ρ) Therefore, speed of sound (c) =  √(210000/0.0078)…

AIM To perform a bird strike simulation in LS-DYNA and extract the results. PROCEDURE The project file contains hub,blade,engine casing and bird models. The blade rotates at a constant velocity and the engine casing should remain stationary. The cylindrical bird travels along its own axis toward engine  and hit the…

AIM Using the LS DYNA manual (*CONSTRAINED_JOINT keyword) demonstrate spherical, revolute, cylindrical, and translational joints between two rigid bodies and two deformable bodies.   A Mechanical joint is a section of a machine that is used to connect one or more mechanical parts to another. Mechanical joints may…

AIM Calculate the area under the P-V diagram. P is in column 2 and V is in column 8. Calculate the power output of this engine. Assume that RPM is 1500 This engine consumed 20 micro grams of fuel (per 1 stroke cycle). Calculate its specific fuel consumption. Above objectives should be achieved by python programming. THEORY:…

AIM  Using the diagram of the true stress-strain curve given for graphite iron casting, create a material model for the dogbone specimen and validate the material model by performing a tensile test on a dogbone specimen. PROCEDURE Data Extraction from the curve image Data clean up - curve fitting Unit conversion defining…

AIM To calculate the Mooney Rivlin and ogden material constants and compare both of the stress-strain data curves with the simulated stress-strain data of a dogbone specimen model which is subjected to tensile test with 100 percent strain. THEORY OF HYPERELASTIC MATERIALS Hyperelastic materials are the special class of…

AIM To determine the code to fit a linear and cubic polynomial for the Cp data. Explanation Curve fitting is the process of constructing a curve, or mathematical functions, which possess the closest proximity to the real series of data. By curve fitting, we can mathematically construct the functional relationship between…

AIM To perform the simulation in order to reduce the run time with the help of mass scaling LS-DYNA OBJECTIVE: To learn about the mass scaling technique to reduce the computational time for the analysis The hard limit on mass scaling is 8% and stability should be completely intact. Run same model using an implicit solver…

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AIM To perform the simulation using  different ELEFORM's as given and calculate the stretch ratio and plot the graphs in excel sheets between engg.stress Vs stretch ratio. OBJECTIVE: Create the block of 10mm×10mm×10mm dimension with 10 elements for each direction and use the material card(Ogden_material.k)…

AIM To execute the P-V diagram of a otto cycle and the thermal efficiency of it using python. OBJECTIVES: 1. Your code should create a PV diagram 2. You should output the thermal efficiency of the engine.   EXPLANATION OF OTTO CYCLE AND ITS FORMULAS:   Probably the most well established and modelled compression…

AIM To write a code and execute the simulation of simple pendulum usind second order equation and create a animation using python. In the above equation, g = gravity in m/s2, L = length of the pendulum in m, m = mass of the ball in kg, b=damping coefficient. L=1 metre, m=1 kg, b=0.05. g=9.81 m/s2. Simulate the motion between…

AIM 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 elements.   SPOT WELDING THEORY A form of resistance welding, spot welding is one of the oldest welding processes whereby…

AIM To solve the given non linear equation by both implicit and explicit methods Non-linear equation -   F(u) = u3+9u2+4u  For the above equation force is the function of displacement. Let us know about what is explicit and implicit analysis: Explicit  Mass/inertia and damping are included, Dynamic…

AIM The objective of the assignment is to observe the analysis of drop test a mobile from scratch using the LS DYNA FEM of phone and the drop surface.    PROCEDURE SECTION (SECTION_SHELL AND SECTION_SOLID) shell and solid sections are created for the phone and surface reduced shell, solid elements are used as…

AIM To create simulation results for crash box under load, different thicknesses and compare the energy plottings for the obtained different thickness simulation results.   PROCEDURE To acheive the simulation we have follow the certain steps Model setup outpur requests Results. For the model setup the input for the…

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

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PROJECT 1 IP SUBSTRATE   AIM 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.   What is IP Substrate? The automotive instrument panel (IP) has evolved over time to become one of the most complex…

HOOD     AIM For the given CAD model (HOOD) we need to extract the mid surface and the do the preprocessing with the given mesh parameters. S.No  Quality Criteria  Value  1 Target/Average length   5 2 Minimum Length  2 3 Maximum Length  7 4 Aspect  3 5 Warpage 15 6 Skewness…

  HOOD   2D MESHING AND QUALITY CRITERIA Meshing:   What is meshing and why do we carry out? The basic idea of FEA is to make calculations at only limited (Finite) number of points and then interpolate the results for the entire domain (surface and volume). Any continuous object has infinite degrees of freedom…

HYPERMESH PROJECT – 1 MESHING OF PLASTIC SIDE DOOR COMPONENT AIM To extract mid surface of plastic side door and to mesh the component satisfying the quality criteria at the end apply thickness to the mid-surface.   Follow the Quality Criteria and mesh the following component and assign thickness: Target Element…

PROJECT 2 WHEEL BASE   Objective: To extract the mid surface of wheel base (sheet metal component) and mesh the model with given quality parameters at the end assign the thickness to the mode.   Follow the below-mentioned quality criteria, mesh the component given below and assign thickness: Target Element Length…