Tetrameshing in Hypermesh

Objective: To perform a crash test simulation of a crash box. Tool: Ls-Dyna Introduction: In this exercise, we are going to simulate a crash test for a crash box for which mesh is given. A crash box is a highly energy-absorbing structure that crashes on the application of loads and reduces the impact on other components…

Objective: To set up a drop test simulation in Ls-Dyna. Introduction: LS-DYNA is an advanced general-purpose multiphysics simulation software package developed by the former Livermore Software Technology Corporation (LSTC), which was acquired by Ansys in 2019. The core-competency of LS-DYNA lies in highly nonlinear transient…

Objective: To study and understand the implicit and explicit analysis method and use them to solve a simple numerical problem. Implicit vs Explicit: Explicit methods are those in which the information at time step n+1 can be obtained in terms of previous time steps and there is no dependence on the current time step. Implicit…

Objective: To perform a side pole crash simulation of a car using RADIOSS solver. Softwares used: Hypermesh, Hypercrash, RADIOSS, Hyperview, Hypergraph 2D Introduction: A crash simulation is a virtual recreation of a destructive crash test of a car or a highway guard rail system using a computer simulation in order to…

Objective: To perform a frontal crash simulation of a car using RADIOSS solver. Softwares used: Hypermesh, Hypercrash, RADIOSS, Hyperview, Hypergraph 2D Introduction: A crash simulation is a virtual recreation of a destructive crash test of a car or a highway guard rail system using a computer simulation in order to examine…

Objective: To study the interfaces in RADIOSS and the effect of Notches in the crash applications. Software used: Hypermesh with RADIOSS Introduction: Normally the explicit analysis method solves highly complex nonlinear problems and contact definition is an important part of many nonlinear problems. In order to get the…

Objective: The objective of this exercise is to study different material types in RADIOSS and compare them. Software used: Hypermesh with RADIOSS Simulation setup: Here, we are considering a crash simulation setup for a rupture plate, as shown in the image below. The circular rupture plate is fixed and a spherical…

Objective: Compare the results for crash simulation with the default and improved element properties using Radioss solver. Tasks to be performed: Using the given crash beam file, change the run time to 55 ms. Change the number of animation steps during simulation to a minimum of 25 and a maximum of 60. Run the base…

Objective: The objective of this project is to perform FEA preprocessing for the rear suspension assembly of a car, i.e., check for the geometrical errors and mesh with the given element Quality criteria. After meshing the component the thickness has to be assigned for mid surfaces. Use tetra elements to model non-uniform…

Objective: The objective of this project is to perform FEA preprocessing for the dashboard (plastic component with varying thickness) of a car. Under preprocessing, geometry cleanup, midsurface extraction, and 2D shell meshing need to be done with all the features in the model captured properly and with good mesh flow.…

Objective: Understand the applications and advantages of morphing in industries and demonstrate basic morphing for a component in ANSA. Morphing: Morphing means changing form or shape. Usually in a design cycle, FE modeling and simulations are performed once the concept CAD is generated. With the need to reduce design…

Objective: The objective of this project is to do preprocessing, i.e., geometry cleanup, midsurface extraction, and shell meshing for a sheet metal component using the manual and automatic methods in ANSA. The component will be meshed by extracting the mid-surface using the Skin option, Casting, and also using the Batch…

Objective: The objective here is to deploy connections for the FE model of the rear door of a car for NVH. These connections will be done in NASTRAN deck in ANSA. Procedure: Car door is a very important assembly as it has many connections in one single subsystem. In this project we will see the important connections and…

Objective: The objective of this project is to perform geometrical cleanup and generate 3D tetra mesh for the 'rearview mirror' component of a car. And the mesh should follow the following quality criteria, S.No. Quality Criteria Value 1 Target/Average length 1 2 Minimum length 0.5 3 Maximum length 2 4 Tetcolapse 0.2 This…

Objective: The objective of this project is to perform FEA preprocessing, i.e., geometry cleanup, midsurfacing, and 2D meshing for a plastic component with varying thickness. After meshing the component, PIDs with different thicknesses need to be assigned. The mesh should have a good flow and follow the following quality…

Objective: The objective of this project is to perform preprocessing i.e. geometry cleanup, midsurface extraction, and 2D shell meshing for the hood component of a car. After meshing, component thickness and material need to be assigned to the mesh. And the mesh should follow the following quality criteria, S.no. Quality…

Objective: The objective here is to extract the midsurface and generate a 2D shell mesh of the given floor panel (spare wheel well) model of a car. The target element length for the mesh is 5mm and the mesh needs to follow the following quality criteria. S.N Quality Criteria  Value  1 Aspect Ratio  5 2 Skewness…

Objective: The objective of this project is to create a 2D mesh of a plastic component with varying thickness and assign thickness to the mesh accordingly. For this purpose, we are going to use the side door panel of a car. For the mesh, the following quality criteria should be followed, S.N Quality Criteria  Value …

Objective: The objective of this project is to perform the batchmeshing of the given 'Hood' and 'Fender' components of a car in Hypermesh, based on the given quality criteria and analyze the mesh to understand the pros and cons of batchmeshing. Also, assign the non-linear material property Steel to them using the…

Objective: We are given a frame assembly model consisting of nine individual components as shown below.                                             The objective here is to mesh and create connectors for this given…

Objective: The objective of this project is to generate the 3D tetra mesh of the given components based on the quality criteria and understand the different ways to generate 3D tetra mesh in Hypermesh. Procedure: Tetrahedral is a four-nodded solid element which can be generated through the tria element by creating a volume…

Objective: The objective of this project is to mesh the given 'Backdoor' of the car. The given 'Backdoor' model consists of a total of three different components. All the components of the hood need to have mid-surfaces extracted separately & then meshed according to the quality criteria given below. The target element…

Objective: The objective of this project is to create a 2D mesh of the given 'Hood' component. The given 'Hood' consists of a total of five different components. All the components of the hood need to have mid-surfaces extracted separately & then meshed according to the quality criteria given below. The target element…

Objective The objective of this project is to extract the mid-surface of the component & generate a mesh for that. The next objective is to deploy the 1D elements on that & defining the cross-section to the 1D elements and assigning the property to them.For this purpose, we are given the following CAD model &…

Objective: The objective of this project is to design, model and simulate the fundamental components of an Electric vehicle using Simulink. We will primarily focus on the powertrain components of an electric vehicle. This will help us to understand how the sizing of different components of an electric vehicle is done and…

AIM: List out the total weight of various types of aircrafts. Difference between ground speed and air speed. Why is it not recommended to use aircraft engine power to move it on the ground at Airport? How an aircraft is pushed to runway when its ready to take off? Learn about take-off power, tire design, rolling resistance,…