Surface Topology Repair and 2D Element Meshing

Side Crash Analysis of an Automobile   Objective: To study and analyse the impact on the lateral structure of an automobile during a crash (T-Bone crash).   Procedure: Step 1: Import the solver deck (.rad) file and ensure all the recommended shell properties are assigned. Step 2: Make a new directory/folder…

Frontal Crash Analysis of an Automobile   Objective:  To study and analyse the impact on the frontal structure of an automobile during a crash.   Procedure: Step 1: Import the solver deck (.rad) file and ensure all the recommended shell properties are assigned. Step 2: Make a new directory/folder…

Objective: To extract a proper midsurface using manual offset and also to mesh the given side door model respecting all the specified quality criteria.   Procedure: Step 1. Open the given hypermesh .hm file, the geometry of the side door panel component is studied and divided into five different components to…

Objective: To mesh the given hood part model respecting all the aforementioned quality criteria.   Procedure: Step 1. Import the given STEP file geometry, delete the solids and then extract the midsurfaces for each component individually. The midsurface is extracted using "offset+plane+sweep" method. Step 2. The…

Objective: To extract a proper midsurface using automatic methods and manual offset and also to mesh the given back door model respecting all the aforementioned quality criteria.   Procedure: Step 1. Import the given IGS model file, delete the solids and then extract the midsurfaces for each component individually. …

Objective: To morph the given side body component to the desired shape shown in the images below and write a macro for the same.   Procedure: Step 1. Open the Hypermesh in OptiStruct user profile mode, and open the provided mesh file. Step 2. The surface can be generated from the mesh available using the "From…

Objective: To extract a proper midsurface using manual offset and also to mesh the given model respecting all the specified quality criteria as mentioned below.   Procedure: Step 1. Open the given hypermesh .hm file, the geometry of the floor panel components are studied and again organized under a single component…

Objective: To mesh sheet metal components of simple geometry using batch-mesh technique, for the specified criteria and assign non-linear material to the meshed elements (switching to Radioss profile).   Procedure: Step 1. Open the Hypermesh in Radioss user profile mode, and import the given geometry (provided…

A study on different Contact Interface Models   Objective:  To study, analyse and compare the different contact interface and the impact of a notch in the structure during crash.   Procedure: Step 1: Import the solver deck (.rad) file and ensure all the recommended shell properties are assigned. Step…

Comparison study on different Materials and Failure Models   Objective:  To study, analyse and compare the different material laws and the failure models associated with them.   Procedure: Step 1: Import the solver deck (.rad) file and ensure all the recommended shell properties are assigned. Step 2:…

Solutions for the Assignment 3 questions Question 1 The analysis runtime (Tstop) is changed to 55 ms.   Question 2 The number of animation steps is decided as 45 given the minimum is 25 and maximum as 60. And the Tfreq is updated as 1.22 ms (Tfreq = Runtime / No.of Animation Steps)   Question 3 The simulation…

Solutions for the Assignment 2 questions Question 1 The material properties of the rail component can be determined from two methods, either by importing the FIRST_RUN_0000.rad in Hypermesh or by simply reading the parameters from the FIRST_RUN_0000.rad text file on opening it using Notepad. Method 1 Import the FIRST_RUN_0000.rad…

Meshing an Automobile Hood Component Objective: To perform geometry cleanup and mesh the given parts with the below mentioned quality criteria.   Procedure: Step 1. Open the given .hm model file, the surfaces are cleaned up and by removing all the free edges, by toggling them or filling the surfaces. Step 2. Then,…

Meshing Sheet Metal Components using Batch-Mesh Operation Objective: To mesh sheet metal components of simple geometry using batch-mesh technique, for the specified criteria and assign non-linear material to the meshed elements (switching to Radioss profile). Procedure: Step 1. Open the Hypermesh in Radioss user profile…

3D Tetra Meshing Operation Objective: To create 3D tetra mesh for the given models for given meshing specifications.   Procedure: Step 1. The step file for the housing model was imported and a topology repair was performed after deleting the solid parts. The surfaces of the two components were cleaned up to ensure…

3D Tetra Meshing Operation Objective: To create appropriate connectors of various kinds to attach the given different components of the frame assembly as per the specified requirements.   Procedure: Step 1. The given frame assembly surfaces are repaired with topology cleanup methods like adding washers and modify…

Meshing an Automobile Hood Component Objective: To mesh the given hood part model respecting all the aforementioned quality criteria.   Procedure: Step 1. Import the given STEP file geometry, delete the solids and then extract the midsurfaces for each component individually. The midsurface is extracted using \"offset+plane+sweep\"…

Creation of 1D elements on a component with different cross-section and DOF Objective: To create 1D elements on the following component with given cross-section and DOF.   Procedure: On importing the provided IGES file of the Parallel Bracket model, the midsurface tool in the surface panel is used to auto extract…