Week 3 - 2D meshing for sheet metal

Aim: To create the spot weld using Beam and Solid element in Ls-Dyna and run the model to compare them and study the different way of modelling a spot weld in Ls-Dyna   THEORY: Spot Welding is a type of resisting welding technique comes under the fusion welding category where heat and pressure both are applied in order…

Aim: To do a complete simulation for crash analysis of box having two different thickness of 1.2 mm and 1.5 mm from the given FE model of crashbox. Objectives- Input. k file and output files (D3PLOT, GLSTAT, SLEOUT, RCFORC) Animation of the final simulation Cross-sectional force generated in the middle of the crash box…

AIM: To perform a drop test simulation of a cell phone dropped on a plate under initial velocity using LS-Dyna.   OBJECTIVE : To create the simulation file (input file ) from the given K format type of file. To create the material card. To create a section card. To assign material and section card to the part.…

Explicit method F(u) = u3+9u2+4u                                   (1)K(u) = dF/du = 3u2 +18u + 4               …

SI unit to gm mm ms  Mass: -  1 kg = 1000 gram Length: -  1 m = 1000 mm Time: -  1 s =1000 ms Force: -  F = m.a   = 1 kg * m/s2   = (1000 g )*(1000 mm)/ (1000 ms)^2   = 10^6 g mm/ 10^6 ms^2 F=1N = 1 g mm/ms^2  Conversion Factor = 1 Stress: - 1Pa = 1 N/m^2    …

Aim: The Aim of this Challenge is to Extract the Midsurface of the given Sheet metal Part and to Provide proper connections based on optistruct solver. Procedure: The Steps involved are, 1. Mesh the given geometry according to the Quality Criteria given 2. Provide the Proper Connections 3. Clear the Mesh flow around the…

Housing model: Objective ; To create a Tetramesh for housing component by using Tetramesh generation method by converting the model from 2D to 3D with mentioned criteria   Procedure: Firstly import the geometry file from the system file. After importing the model delete the solid part of the component. Defeated the…

1. AIM: Mesh the Plastic model in Hypermesh. 2. OBJECTIVES OF THE PROJECT:         Follow the Quality Criteria and mesh the following component and assign thickness: Target Element Length = 4 Units S.N Quality Criteria  Value  1 Aspect Ratio  5 2 Skewness 45 3 Warping 15 4 Taper …

1. AIM: Mesh the Plastic model in Hypermesh. 2. OBJECTIVES OF THE PROJECT:           As per the given Quality criteria mesh the Below model. S.N Quality Criteria  Value  1 Target Element Length  5 mm 2 Aspect Ratio  3 3 Skewness 45 4 Warping 30 5 Taper     …

Aim: To  extract a mid surface and mesh the  given component.   Given model: Objectives:   1. To geometrically clean the model for any error on it.  2. To extract a mid-surface of the component.   3. To clean and defeature the Midsurface so as to avoid any minimum length errors…

BJECTIVE To mesh the given backdoor geometry of a car through manual midsurfacing process and the RADIOSS solver, as enunciated in the week 7 videos. To also ensure that mesh is of highest quality with low number of trias and good mesh flow. CAD MODEL IMAGE The model comprising of all its components:It is comprised mainly…

AIM: To mesh the component given by following the quality criteria specified. To Assign property and thickness to the component. OBJECTIVE: Meshing the model components seperately by creating sepearte mid-surface. Using the 'Mixed' (Not Quad) option to generate the mesh, because the model is preparing for the crash &…

AIM: To Mesh the Given component with the Size of 5 Units & to Create 1D elements on the following component with given cross-section and DOF. GIVEN DATA: a. Rod element:- Translational DOF should be Constrained with RBE2 link Cross-Section: BOX- Dimension a= 12 mm              …

aim: To create connections for rear door of car using ANSA Software. 0bjective: To assign property identity for every subpart. To create RBE2 Element in order to represent bolt connection. To create RBE3 Hexa RBE3 element in order to represent spot weld connection. To create RBE3 CBUSH RBE3 element in order to represent…

Project 2 - 2D meshing on the instrumental Panel   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.   METHODOLOGY: Import the CAD Geometry and do Geometry clean-up with no topological…

OBJECTIVE To extract the midsurface of the given floor panel, mesh the component using the given quality parameters and assign thicknesses.   QUALITY CRITERIA S.N Quality Criteria  Value  1 Aspect Ratio  5 2 Skewness 45 3 Warping 15 4 Taper      0.5 5 Min. Length 2 Units 6 Max. Length 8 Units 7 Min angle Quad 45 8 Max…

AIM: Import the CAD geometry of cap model Clean up the geometry until no topological error is found Extract Mid-Surface for the geometry for below quality criteria Mesh geometry with target/average length of 5mm  S.No  Quality Criteria  Value  1 Target/Average length   5 2 Minimum Length …

time taken - 3hrs

AIM The Rearview mirror component should mesh by using tetra volume mesh and clear the kinks and dips. OBJECTIVE The component should check for geometry errors and clean up the failing surfaces for minimum elements length and should be mesh by tria or ortho tria. Element quality criteria for meshing the rearview component…

time taken plastic - 4hrs sheetmetal - 1hr

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Methodology:- 1)Import the model 2) Geometry cleanup 3) midsuface extraction 4) perimeter setup 5) quality criteria setup 6) 2d meshing 7) exporting   1)Import the model:-  -The format of the file is .step, then first of all select open - file loaction- choose open model. -Now selected file will open 2)…