Using FEA to determine Kt (Stress conc Factor)

CODE IN C++: To find the shortest path from a source node to all the other nodes, given an adjacency matrix of 1's and 0's. #include <iostream> using namespace std; int main(){int n, s; cout << "Enter size of Adjacency Matrix: ";cin >> n;cout <<"Enter the source node 0 to "<< n-1<<":…

Perform a static structural analysis on the Railwheel and Track setup and Case 1: Multiply the bearing load by 5 times and compare the results with the load of 100000 N (As done in week 2 video). Compare the Total Deformation, Equivalent stress and the life under both the loads Case 2: Implement a User defined…

Surface Warp and Merging  Objective: To create a single external surface mesh of engine, transmission and the gear box using surface wrap. Methodology: Stage 1: Cleanup Model and Simplify The models are looked for to find unnecessary parts left over from modelling. These must be removed before performing surface wrap,…

PRESSURE VALVE MESHING Objective: To clean the given pressure valve model, assign Property ID's (PID's).The model is then meshed to check for the best element size. Methodology: The geometry is to checked for any defects. The tools required to fix geometry defects are in the Topo module. STAGE:1 (Geometry Cleanup) in…

Considering that the crash box welded pair collides with the rigid wall at velocity of 14m/s; This has be done by using a planar rigid wall stationary at one end, while the welded crashbox drops towards the rigid wall at an initial velocity of 14m/s. SpotWeld-Beam: Beam elements are used to model spot-welds. Here the material…

Sphere pressing on a plate: Geometry and Material: Add the appropriate materials that are needed to be used to the Engineering Data. The Geometry includes the following components: A plate and a sphere.Plate: Structural Steel NL.Sphere: Structural Steel. Contacts: Frictional contacts(f=0.2) is setup between the sphere…

Objective: The hood model is used to extract a mid-surface, and is cleaned to extract an FE model based on the quality criteria specified. The model provided is a sheet metal model, and hence will be modelled into shell elements. Stage 1: Extraction of Mid Surface Skin The inner and outer hood is used to extract the…

Long Piston with Cam Geometry and Material: The Geometry includes the following components:  Barrel, Piston_Cam, Cam_FollowerBarrel: Rigid.Cam: Rigid.Cam Follower: Structural Steel. Contacts: Frictional contact(f=0, 0.1, 0.2) is setup in the project as shown below: Cam and Cam_Follower Cam_Follower and Barrel.-->This…

TURBOCHARGER MESHING Objective: To clean the turbocharger model to be free from topological errors, assign functional PIDs, Methodology: Stage 1: (Geometry Clean-up) Looking for single CONs is general way of spotting topological errors. Look for interfering surfaces, and try to create a closed model.-Here, some surfaces…

BMW M6 Meshing   Symmetry in Model: Since the car can be treated to be symmetric about a plane except for the tyres, it is possible to remove the surfaces on one side, and work on only the other side. Finally it can be symmetrically mirrored to complete the geometry. Stage 1:Body Cleanup Objective: The model is cleaned…

Weld Material used: Case 1.  Stainless Steel: In this case, the material of the plates must also be the same. Use Stainless steel for both weldments and plates. No need to add flux to the weldments. Case 2. Aluminium Alloy:The material to be chosen for this case is Aluminium alloy(high strength, wrought). [Plate material…

Copper rolling: Geometry and Material: Add the appropriate materials that are needed to be used to the Engineering Data. The Geometry includes the following components: Two wheel rollers and the sheet metal.Wheel Rollers: Rigid.Workpeice: Copper Alloy Contacts: Two identical frictional contacts(f=0.2) are setup between…

Case 1:Aluminium Alloy 1199( mentioned in the course video),Copper Alloy NL and Magnesium Alloy NL. Find out the Equivalent stress, Equivalent elastic strain and Total Deformation in Y direction and compare the results for the three materials. Case 2:With the material as Aluminium Alloy, change the friction coefficient…

Considering a crashbox made of Mild Steel (St37): Material Properties Unit System gm-mm-ms Density 7.33E-03 g/mm3 Yeild Strength 290 g/(mm)(ms)2 Ultimate Strength 460 g/(mm)(ms)2 Strain- Hardening Exponent 0.22 C 6.844ms-1 P 4.12 Effective Plastic Strain and True plastic stress data of Mild steel: Effective Plastic Strain…

Wire Bending: Geometry and Material: Add the appropriate materials that are needed to be used to the Engineering Data. The Geometry includes the following components:Wheel: Rigid.Wire: Copper Alloy/Aluminium Alloy/Magnesium Alloy.Lever: Rigid. Contacts: Two frictional contacts(f=0.2) are setup. One between the wire and…

Case :1 Design a plate with a hole model similar to what we worked in the class, but with increased thickness.Determine the maximum deformation and stress developed in the model. Plate dimensions: Length=300mmHeight=120mmThickness=30mmCircular Hole at the center:Diameter=60mm Case 2: smaller holes 90mm away from the center:…

Grid Dependency and Mesh Convergence: The solution to a FE problem is dependent on the mesh size. The obtained FE solution tends to the actual solution as the mesh is made finer, but with a consequent increase in computing time. It is therefore necessary to reach an optimum mesh size to obtain a fairly accurate solution…

Case 1:                    Using Cast Iron(ductile) as a material, carry out a static structural analysis to find out Equivalent stress, Total deformation and Stress intensity(Learn about what stress intensity is). Find location for possible fracture Case 2:  …

Bending of iPhone: Case Setup: The project setup is done as follows for the two cases: CASE-1: Geometry and Material: Add the appropriate materials that are needed to be used to the Engineering Data.  Material Young\'s Modulus Yeild Strength Tangent Modulus (Non- Linear models) Poletheylene 1.1GPa 25MPa - Al Alloy…

Using FEA Results To Determine Stress Concentration Factors: Stress Concentration factors (Kt’s) for numerous simple geometries have been determined by researchers (analytical equations), which have been compiled into tables. eg: Roark's Handbook. Determining stress concentration factors (Kt) for complex geometries…