Week - 9 Material Modeling from Raw Data

Live session batch Aim: To create deck setup for the frontal crash simulation of BIW of car and simulation to be carried out and discuss the results. Procedure: The Units system used in the simulation is found out by using the starter file. The penetration is not there as it checked. The type 7 Contact is created with…

Aim: To create mesh for the bumper model and simulation of the crash box with notches and without is carried out and compared with other cases. Objective: Create the mesh for the bumper model with 6mm element size. The crash box is simulated as given, changes are made inacti=6, created new type 11 contact, notches and…

Aim: The given model is run for crash analysis by applying the different materials laws as instructed using Radioss and post process the results obtained compare the solution. Objective: To carry out the simulation of the given model and compare the results. There shall be 7 cases with different parameter as instructed…

Aim: To use the improved version of the 2D elemental formulation and comparing with the base simulation. Objective: Comparison of results of the improved version of the 2D elemental formulation and comparing with the base simulation. Procedure: The given RAD files are downloaded and imported to hypermesh software.  …

Aim: To edit the engine file of the given model with the calculated value and create 3D mesh of the given components. Objective: To check the material properties, calculate the speed of sound, calculate the time taken to for sound wave to travel from one end to other end with length of 1000mm, set frequency of animation…

Aim: The given models are meshed using the 2D mesh in the Hypermesh software. Objective: The given models are to be meshed with good mesh flow and follow the given quality criteria. The models are cleaned up for geometry errors, extract mid surface, cleanup mid surface, 2D meshing surface and assign thickness to mesh using…

Aim: To simulate Bird strike on aero engine turbine blades concept which is classic nonlinear transient analysis solved using the explicit solver. Objective: The bird strike is the classic example of the nonlinear transient analysis which is solved using the explicit solver, since the bird strike is common and evidently…

Aim: The joints of revolute, cylindrical, translational and spherical joints between two rigid bodies and two deformable bodies are compared in the Ls-dyna software. Objective:  The joints is part of the machine used to connect two or more parts together temporary or permanently. They will be designed in such a manner,…

Aim: The given material data is used to calculate Mooney-Rivlin and Ogden material constants and compared Both with the stress Vs strain curves. Observation: The given material data is used to calculate Mooney-Rivlin and Ogden material constants and compared Both with the stress Vs strain curves of dog bone specimen tensile…

Aim: To material model from the raw data given by using the material card of MAT-024_Linear_piecewise_plasticity card in Ls-dyna Objective: To model a material from the raw data given in the form of image to be extracted using the data digitizer and clean up the data, plot the graph to check that the data is matching the…

Aim: The Mass scaling of the given model is done to reduce the run time and ensure the stability of the model and comparing the run time of the model by implicit and explicit method. Objective: The given model is subjected to explicit analysis modeling and is run without the timestep control to know the time and mass scaling,…

Aim: Pedestrian Head impact on the hood of automotive vehicle and finding the HIC factor comparing with head impact on rigid wall Objective: To create a simulation of the head on rigid wall and head on the Hood using the given mesh, the simulation of the impact of head with rigid wall and how it absorbs energy and the…

Aim: To create a simulation of box made of hyper-elastic material (ogden material card), stress/strain curve is obtained and compared with elform 1,-1,2,-2. Objective: To create a simulation of the box structure, the simulation with various elform 1,-1,2,-2 and stress/strain curve is obtained to compare the same. The simulation…

Aim: To create a simulation of spotweld undergoing impact test. Objective: To create a simulation of the spotweld joining two metal sheets, the simulation of two metal sheets hitting the rigid wall and how it spotweld acts. The simulation helps understand the complex simulation by testing spotweld with beam 1D element…

Aim: To create a simulation of crash box for impact test. Objective: To crate a simulation of the crash box using the given mesh, the simulation of the crash with rigid wall and how it absorbs energy. The simulation helps understand the complex simulation by testing simple rectangular box with thickness 1.2mm and 1.5mm…

Aim: To conduct drop test simulation on a cell phone using the Ls-Dyna software, create the input deck file and post processing the results. Objective: Cell phone model is taken into consideration to check the impact test when the phone drops from a distance to the ground. The drop test is conducted to identify the weak…

Explicit and implicit analysisIn explicit analysis, highly nonlinear dynamic problem is analyzed. While, implicit analysis, linear and nonlinear static is analyzed.Explicit analysis, high frequency and high velocity problem is analyzed. Implicit analysis, low frequency and static problem is analyzed. Explicit analysis…

Aim: To understand and create a Consistent Unit system to follow the measurement system. Objective: The Uniform measurement system is used to maintain consistent unit system so that the output will be having right results.   Value of the following measurements are given as follows: MASS = 1kg LENGTH = 1m TIME = 1s…

Aim: Create 3D tetra mesh and connections to the given suspension system assembly. Objective: The given suspension system which was cleared off the geometrical errors which was meshed with 2D elements and the 3D tetra elements are created with good mesh deployed with connection using RBE2 elements and the overlap joint.…

Aim: Create the mid surface and mesh the model with 2D elements to the given Dash board component. Objective: The mid surface of given Dash board model was extracted, the respective properties was assigned to the of the model and mid surface was meshed with 2D elements for the given quality criteria and good mesh flow…

Aim: To morph the given component by increasing the dimension and change of shape by using morph module. Objective: The changes in dimension and shape of the given components is done using the morphing technique. Procedure: Download the given component and open it in Ansa software. The component is checked for geometry…

Aim: Create connection to the given Rear door FE model. Objective: The connection of weld spot and spot line is deployed on the finite element model which is given by using the RBE3-Hexa-RBE3 and RBE3-CBUSH-RBE3 respectively. The property of the given FE model is assigned individually to the parts. The rigid body element…

The manifold tool test is completed a per the given quality requirement.

Aim: Create 3D tetra mesh to the given rear view mirror component. Objective: The given rear view mirror are 4 parts which was cleared off the geometrical errors and cleanup was done, which was meshed with 2D tria elements and the 3D tetra elements are created with good mesh and no kink or raised edges with clean good…

i have taken more time than allotted, I have taken more time in each of the component because of needle face was deleted and new faces were created manually, could not create zero off element in both components, Model 1(Switch panel) took 12 hours and model 2 (component) took 18 hours.

Aim: To create the mid surface and mesh of the bottle cap model as plastic component. Objective: The mid surface of given bottle cap model was extracted, the respective properties was assigned to the varied thickness of the model and mid surface was meshed with 2D elements for the given quality criteria and good mesh flow…

Aim: Create mesh of 2D elements of given hood model for sheet metal Objective: The given hood model of uniform thickness is taken as sheet metal which is to be meshed on by creating a mid-surface with 2D elements with given quality criteria and good mesh flow to be followed. The following quality criteria: Target/Average…