Project 2

Stress Concentration due to hole   Introduction:                The stress concentration occur due to the hole. In this case, the stress concentration of the two cases is analyzed. After performing analysis of the two cases, we can conclude which…

Sphere pressing on a flat plate Introduction:                In this small project, we will show the effect of the non-linear behavior of materials. As we know any materials which go under yielding will experience permanent deformations. Hence, this…

Verification of weld joints Introduction:                In this paper the structural analysis of the load carrying design is analyzed by varying the materials of the weld. In three different cases, the material properties are varied for base plate and…

  Head Impact analysis of the Pedestrian Hitting the car bonnet Introduction:                Head impact is the most vital simulation done throughout the automotive industry. It is very important because even small effect on the head can cause severe…

Crash test of rectangular box tube Introduction:                In this simulation example, the crash box is impacted with some initial velocity on the rigid wall in order to observe the energy absorbing behavior of the box. In order to verify those…

Implicit and Explicit analysis Introduction:                The implicit method is an iterative way of finding the more accurate solution to the problem within the desired tolerance. On the contrary, the explicit method is not iterative or says that it is a direct method of finding…

Bird strike analysis of simplified model using LS-DYNA Introduction:                In this project, we have performed the bird strike analysis using Lagrange formulation. The bird is simplified in this case because shell element is used and material…

Drop test of mobile Using LS_DYNA Introduction:             Drop test is most widely used for fragile material. This test provides some certainty in impact strength. It gives an idea about how the sudden surge of force is transmitting through the body. You will also…

Units/ Quantity mass length time force stress Energy Density Young's modulus Velocity Gravity   1kg 1m 1s 1N 1Pa 1Nm 1 Kg/m3 20 Gpa 56.33 Kmph 9.8 m/s2 kg, cm, ms 1 kg 100 cm 1000 ms 10E-4 kg cm/ms2 10E-8 kg/cm ms2 10E-2 kg cm2/ms2 10E-6 Kg/ cm3 200 kg/cm ms2 1.56 cm/ms 9.810E-4 cm/ms2 gm, mm, ms 1000 g 1000 mm 1000…

A side impact of the Car with the rigid pole at an angle Introduction:                Assume that you tried to steer your car at high speed at turning but speed was enough to outwit the Tires resisting force and you hit the rigid cylindrical object like a tree. So, in this and many other cases like a side car accident,…

Frontal Crash simulation of simplified CAR model of Neon with a thorough analysis. Introduction: Frontal crash analysis of the vehicle system is of prime importance for the car manufacturer to keep their customer safe. This analysis is divided into two parts i.e. crashworthiness and occupant protection. So, crashworthiness…

Analyzing the crushed pattern of the tube by creating depression over the different regions on the surface and tweaking the interface (contact) parameter. Introduction:                Deforming pattern of any object depends upon the shape and size of…

Characterizing and understanding the behavior of elastic (Law 1), Isotropic elasto-plastic (Law 2 and different cases, Law 27, Law 36) material. Introduction: Elements are the way of representing the CAD model infinite form. Then we take the modeled elements to perform the simulation. Now, the elements themselves do not…

Describing the difference of simulation result on the basis of shell element properties. Introduction: From the above picture, you might have found a difference in the deformation method. So, this paper is all about the difference of element properties and their significance in simulation to get accurate results. I will…

Creating 1D, 2D and 3D mesh of the component and finally showing the travel of shock wave though the rail by calculating the speed of sound in corresponding rail.      Introduction: This small project deal with meshing 1D, 2D and 3D elements. In 3D meshing we will be seeing how the 3D Hexa meshing is done and different…

AIM: Mesh the floor panel of the vehicle (Bus) with given quality criteria and assign thickness. S.N Quality Criteria  Value  1 Aspect Ratio  5 2 Skewness 45 3 Warping 15 4 Taper      0.5 5 Min. Length 2mm 6 Max. Length 8mm 7 Min angle Quad 45 8 Max angle Quad 135 9 Min angle Tria 20 10 Max…

Aim: Perform the proper meshing of the component (Door panel) while fulfilling the given quality criteria and assign corresponding thickness to each part. S.N Quality Criteria  Value  1 Aspect Ratio  5 2 Skewness 45 3 Warping 15 4 Taper      0.5 5 Min. Length 2mm 6 Max. Length 6mm 7 Min angle Quad 45 8 Max angle Quad 135…

Aim: Perform a geometry clean-up before and after the mid-surface extraction and ignore the holes with a diameter less than 5mm and hence assign the proper thickness after meshing the component. Criteria: Target length: 5mm Minimum length: 3.5 mm Maximum length: 7 mm Components: practice 2) Clip repair 3)Mounting Bracket…

AIM: Mesh the given model with the appropriate mesh parameters and create a connector to attach various parts of the model. Introduction:                The connection is one of the separate parts of FEA modeling. It plays a crucial role to represent…

Aim: Generate 3D mesh of the component by performing topo cleanup. Introduction:                3D mesh provides us actual FEA model of the component. Thus the accuracy of this mesh is good. But only cons is that it possesses a large number of nodes.…

Aim: Perform geometry cleanup and generate mid-surface then mesh the component (Hood) with the given quality criteria and assign the thickness.   Introduction:                In this report, the Hood of the car is used to create the FEA model. This…

Aim: Mesh the rear wheel assembly of the car using appropriate mesh element 1D, 2D, and 3D with a suitable connection at the required place using the generated FEA model. For Tyre and Rim: 1    Target Length   6.5 2 Minimum Length  5 3 Maximum Length  10 4 Skewness 45   For Mixed element…

Aim: Perform the geometrical checkup of Ip Substrate, create a mid-surface using the best method, and reason it then meshes and checks the quality of element with the given quality parameter. Quality Criteria: 1 Target/Average length   4 2 Minimum Length  2 3 Maximum Length  6 4 Aspect  3 5 Warpage…

Aim: Create a 1D element on the given component. Introduction:                1D element is applied for simulating the real world only when there is one dimension much larger than the other two. Some of the 1D elements are rod, bar, beam, pipe, axisymmetric…

Aim: Modify the design of the model using the Morphing tool over the CAD model and enumerate the process in detail. Procedure: Topo and geometry cleanup Creating a Morphing box using ortho Splitting Morphing box at the required place to form the desired shape Created a FE model and feature modification Introduction:               …

Aim: Implement the FE representation of the connection part on the rear door FE model with the appropriate reasons for assigning. Introduction:           A system in itself has a lot of sub-systems connected by means to perform tasks sequentially and synergistically. To simulate…

Time taken: 8 hours  

Aim: To Check the geometrical errors in the model and mesh it with tetra element with no kinks and dips on the surface of the model using given quality criteria. Target length: 1 Minimum length: 0.5 Maximum length: 2 Tet collapse: 0.2     Steps Involved: Geometry Clean-up Assigning quality criteria & perimeter…

To complete Switch Panel: time taken is 18 hours   To complete Component: time taken is 10 hours

Week 4 Challenge: Bottle Cap Aim: To perform geometry cleanup and generate mid-surface and create meshing on that respective mid-surface. Also, connote the thickness of each element and draw the FE model as solid. Procedure:                              …

Aim: To mesh all the parts of the Hood and give a detailed description of meshing and subject thickness to the mid-surface and eventually make the FEA, Draw as a shell. Input Parameter:  Target Length: 5, Min. Length: 2, Max. Length: 7, Aspect ratio: 3, Warpage: 15, Skewness: 45, Jacobian: 0.7, Min. Quad angle: 45,…