Week 9 Machining with Planer Challenge

Objective : To simulate a bullet penetrating a bucket in Ansys Workbench using explicit analysis. Model : Procedure: Firstly changed the material of the bucket as well as the bullet. Fix the bucket and give a velocity to the bullet of 139m/s. Mesh the model. Analysis should run for 0.01 seconds. Mesh : Default mesh and…

Objective : To simulate a car crash in Ansys Workbench using explicit analysis. Model : Procedure: Firstly changed the material of the car body to stainless steel NL to analyse it's non linear behavior.  Used the symmetry option so that the half car model can be simulated as a full car to save computational time.…

Obejective : To simulate tension and torsion test of a steel specimen in Ansys Explicit dynamics: Model: Material: Steel 1006 Mesh: Method : Tetrahedrons Sizing 1 : Sphere of influence with 3mm mesh(left end) Sizing 2 : Sphere of influence with 3mm mesh(right end)  Sizing 3 : Sphere of influence with 2mm mesh (middle)…

Objective : To analyse the stress generated in a workpiece while maching at two different speeds. Model: Contacts : Body to Body interaction: frictionless Mesh : Sizing of work peice with tetrahedron elements Edge sizing of the workpiece with 10 divisions. Meshed Model: Simulation results: Case 1 (velocity : 20000mm/sec)-…

Obejective: To perform transient structural analysis on worm and ring gear assembly to evaluate the stress generated due to worm gear's rotation. Model: Connections: Connection Connection type Parts Type Joint Body to ground ring gear revolute Joint Body to ground worm gear revolute Contact Frictionless ring and worm …

Objective : Perform a transient structural analysis on universal joint connected to a fixed spring and analyze the stress generated in the spring by changing the spring material. Model: Connections : Connection Type Parts Joint type Body to ground  Gear shaft  revolute Body to ground Spring shaft revolute Body…

The results of the simulation using different materials: case 1: Cast Iron equivalent stress: Stress intensity: Total deformation: case 2: Cast steel equivalent stress: Stress intensity: Total deformation: case 2: Cast bronze equivalent stress: Stress intensity: Total deformation: The animation of the results: iron: https://drive.google.com/open?id=1QNlMN4GKMs5XpkgZ6NH9u3XAORqT7Jns…

Title : Transient analysis on a piston and cam mechanism model. Objective : To calculate stresses in the cam follower for varying frictonal coefficient between cam follower and barrel cam. Model:  Contacts : cam follower to barrel : frictionless  cam follower to barrel cam : 1)frictionless 2) frictional(0.1)…

Tittle: Bending of Iphone Model: For Case 1: For Case 2: Pushing fingers ofset by 22.5mm in X direction and 10mm in Z direction Contacts: Fingers and phone frame :Frictionless Fingers and display:Frictionless Display and inside: Bonded Frame and display: Bonded Mesh : Model (A4) > Mesh Object Name Mesh State Solved…

Title : Sphere pressing against a Plate. Model: Contacts: Sphere and Plate: Frictional(0.74) Mesh : Model (A4) > Mesh Object Name Mesh State Solved Display Display Style Body Color Defaults Physics Preference Mechanical Relevance 0 Sizing Use Advanced Size Function Off Relevance Center Medium Element Size Default Initial…

Tittle: Verification of welds Model: Contacts: Ribs to Plate : Frictional(0.2) plate to plate : Fricitional(0.2) Welds to ribs and plates: Bonded Mesh: Model (A4) > Mesh Object Name Mesh State Solved Display Display Style Body Color Defaults Physics Preference Mechanical Relevance 0 Sizing Use Advanced Size Function…

Title : Rolling operation on copper workpiece. Model:  Contacts: workpiece to wheel 1: Frictional(0.2) workpiece to wheel 2: Frictional(0.2) Mesh : Model (A4) > Mesh Object Name Mesh State Solved Display Display Style Body Color Defaults Physics Preference Mechanical Relevance 0 Sizing Use Advanced Size Function…

Tittle: Stress analysis of a wire being bent. Model : Connections: Contact a) frictional : Wire to Lever             b) frictional : wheel to wire Joints a) Body to ground revolute joint : Lever Mesh : Model (A4) > Mesh Object Name Mesh State Solved Display Display Style Body Color Defaults…

1)Grid dependency test means refining the mesh or grid and checking the results and how much it differs from the previous. Basically we refine the mesh that is reduce the element size and see how do the results change. So as we refine the mesh we get more accurate value untill the change in mesh size stops affecting the…

the maximum stress in case 1:6.0429 e5 pacase 2: 5.8073 e5 pa the total deformation max in case 1: 2.7 e-7 mcase 2: 2.9 e-7 mAs we see that in case 1 the stress induced is more and that in case 2 is compartively less for same conditions so from design the one in which less stress is induced can be selected.From…

a) rubber because it has high young\'s modulus so for high values of stress its deformation will be less. b) concrete as its poisson\'s ratio is least so it will avoid linear contraction or reduction in size of its transverse area.

It depends on the material we are using like for metals both the strengths are almost equal but for materials like concrete the compressive strength is way more than its tensile strength. So both require the same capacity of the machine