Week - 8 Mass Scaling

Objective: To design the plate 1 of (300*120*30) dimension with single middle hole of diameter 60mm and with plate 2 of same dimension with 2 holes as shown in below figure and performing the analysis according to the given conditions Procedure: Case (i) First, we need to assign a material data so to create that in the…

OBJECTIVE : To perform the simulation of bird strike in aero engine model using LS DYNA. This is a classic nonlinear transient dynamics problem similar to car crash and mobile drop. While accurate modelling of the problem requires advanced techniques such as SPH, this problem can be solved using generic explicit solver.…

OBJECTIVE : Using the manual (*CONSTRAINED_JOINT keyword) to demonstrate spherical, revolute, cylindrical, and translational joints between two rigid bodies and two deformable bodies.  PROCEDURE : Between two rigid bodies (1)    Revolute joint *    Using the mesh option two parts are created as…

OBJECTIVE : From the given material data, calculate the Mooney Rivlin and Ogden material constants and compare the both using stress-strain data from a Dog bone specimen tensile test with 100 percent strain. The given data is the engineering stress-strain in MPa/(mm/mm). The comparison should be shown from the d3hsp…

OBJECTIVE : Using the diagram of the true stress-strain curve of graphite iron casting. Two curves are there for different material structures. I need to pick any one of them and use the data to create either a MAT_024 or MAT_018 material model and then validate it.  Theory : Materials modelling is very necessary…

OBJECTIVE :  To use the mass scaling to reduce the runtime of a model and ensure the stability of mass scaling. The hard limit on mass scaling is 8% and stability should be completely intact. This means that two simulations, one with mass scaling and one without should behave exactly the same way. The submission should…

Aim:   In this project, a children's head form model is provided. We are supposed to replicate a scenario where this head form will impact on a car bonnet. The bonnet should be considered as a rigid wall for the 1st case and while using the meshed hood model a elasto-plastic material card has to be used. From the…

AIM : Create a block of 10mmx10mmx10mm dimension with 10 elements for each direction and use the material card attached (Ogden_Material.k) that is representative of the material properties. Use appropriate boundary conditions to simulate tensile behavior for the model and finally compare the results from your simulation…

Aim : In this assignment, we need to model spotwelds for the given assembly of parts and run a crash test. Details about spotweld location is in the image below. The yellow line signifies the spotweld directions. we need to use 3-7 spotwelds along this line, in a symmetric manner, before running the simulation The spotwelds…

AIM :In this assignment, we need 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 application of loads and reduces impact on other components nearby. A full-fledges crashbox is a highly sophisticated design but in this case we will go with…

AIM : to perform drop test simulation of mobile phone on the rigid floor. Procedure : As the given model consists meshed model so no need to mesh so just carrying out the analysis is enough. So before carrying out the analysis we need to prepare the deck so the part, material, section, initial velocity, Boundary, Contact,…

Aim : To solve the given problem using both explicit and implicit method and plotting the results. It shows an example nonlinear static problem. In both cases an incremental load control scheme is used. Consider the case of a simple bar in tension. Suppose that the force in the bar is a nonlinear function of the displacement.…

https://drive.google.com/drive/folders/10hobuiqM2ml6eRbD9vvlXgvjo5QpdUTm?usp=sharing     (1) OBJECTIVE: To create the 3D meshing(tetra mesh) for the given component of target length 5mm with tet collapse 0.15, min length 2mm and max length 7mm PROCEDURE: Importing the geometry. Deleting the solid surfaces if…

https://drive.google.com/drive/folders/1Xx6qfNdp2Qr1E5SAlfsXFOnXXg3nHSRb?usp=sharing OBJECTIVE: To mesh the given hood component and assign thickness of 5mm with the below mentioned quality criteria. Sl No Quality Criteria value 1 Aspect Ratio 5 2 Skewness 45 3 Warping 15 4 Taper 0.5 5 Min Length 2 6 Max Length 8 7 Min…

https://drive.google.com/drive/folders/1InXOXSdzpE52_tLNinYBZuSLIL_GMiVI?usp=sharing   OBJECTIVE: to create the connectors and attach the various parts of the given model. Right_Rail_2 & Front_truss_1 - Seam-Quad(angled+capped+L). Left_Rail_2 & Front_truss_1 - Quad elements. Front_truss_2, Front_truss_1…

https://drive.google.com/file/d/1h_RdvKZ2JB--AyRjqxvmIn3DOiULOwzL/view?usp=sharing   Aim : For the given component, check for the geometrical errors and mesh with the given element Quality criteria. Use tetra elements to model the component and there should not and kinks and dips on the surface of the component. Sl…

https://drive.google.com/drive/folders/1y630tQhv1D9T6lk7IfxLYxMTeLEWPzok?usp=sharing     Aim : For the given component checking the geometrical errors and meshing the model with given quality criteria. After meshing thickness as to be assigned. S.No     Quality Criteria  Value   …

  https://drive.google.com/drive/folders/1Hy19zrCBeSXvWJ9aHZOvfVKxL-RoK8kr?usp=sharing   Aim : For the given component checking the geometrical errors and meshing the model with given quality criteria. After meshing thickness as to be assigned. Sl No     Quality Criteria  Value   …

https://drive.google.com/drive/folders/1i547QqjzuKCZ0yiCFAw-IoBH3eUlEbm7?usp=sharing     Aim : making the required connections for the given rear door component. Procedure: Importing the rear door model, as the given model is .nas file the importing file as been done as shown in the below image. As the given…

Aim : To practice all the morphing technique and to write a report on morphing and its uses in various industries. Morphing is a change in design or shape of any component without using any numerical inputs for the betterment of the results. So it usually used in automotive industries to save time, development cost etc.,…

Aim : For the given component checking the geometrical errors and meshing the model with given quality criteria. After meshing thickness as to be assigned. S.No     Quality Criteria  Value        1 Target/Average length   4 2 Minimum Length  2 3 Maximum Length 6 4…

Aim: For the given suspension assembly, 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 thickness components and also making the required connections. Quality Criteria…

Aim : to show the detailed calculation for conversion of SI units to different unit systems according to the given system of units Value of the following measurements are given as follows: MASS 1kg LENGTH 1m TIME 1s FORCE 1N STRESS 1Pa ENERGY 1Nm DENSITY 1Kg/m3 YOUNG'S Modulus 210GPa Velocity 56.33KMPH GRAVITY 9.8m/s2…

https://drive.google.com/file/d/1h_RdvKZ2JB--AyRjqxvmIn3DOiULOwzL/view?usp=sharing     time taken for completing tool test = 4hrs

https://drive.google.com/drive/folders/1Dp3n4s8j6O5CClTWWpgQd36_3tGInPXu?usp=sharing   OBJECTIVE: To mesh the given side door component with target element size of 4mm and assigning the required thickness with the below mentioned quality criteria. Sl No Quality Criteria value 1 Aspect Ratio 5 2 Skewness 45 3 Warping…

OBJECTIVE: To create the different types of 1d element in the given component with given cross section and DOF PROCEDURE: * Before creating the 1d element the midsurface is created on the 3d component by using the midsurface option and property, material is assigned to the component. (a) Rod element: a=12mm, b=10mm and…