Week 5 Bending of iPhone

Objective of challenge: To perform the simulation of I phone bending as per training video and in another case move the bottom fingers to defined position and define the S-N curve for the Aluminium Alloy material as per given values finally perform the simulation. Obtain the values of fatigue life results, directional deformation, Factor of Aluminium Alloy NL and Life of the Aluminium alloy. Compare the results and present with the conclusion.

Simulation setup configuration as follows:

1. Model as follows

2. Part names are specified as

3. Material applied for Display is "Glass", Frame is "Aluminum Alloy NL" and Inside is "Polyethylene"

For case 2 Material applied for Frame is "Aluminum Alloy" and specified values for S-N curve as per below image.

4. Connections configured as

5. Mesh size is configured as

Face sizing selected surfaces

6. Analysis settings configured as shown in below image.

Simulation results as follows:

Description	Case 1	Case 2
Directional deformation Over all step-up	Max 5.4765 mm	Max 2.2366 mm
Directional deformation Aluminum frame	Max 5.2827 mm	Max 2.1559 mm
Conclusion	Major deformation found in case 1. In case 1 pushing fingers are positioned and appling force at front side near to edge.

Description	Case 1	Case 2
Factor of Safety
Conclusion	Factor of safety Max 15, Min 0.13784 Factor of safety is less than 1 at applied load position area.	Factor of safety Max 15, Min 0.064365 Factor of safety is less than 1 at applied load position area.

Description	Case 1	Case 2
Fatigue life
Conclusion	Fatigue life Max 1e8 cycles, Min 0 Fatigue life found 0 cycle at applied load position area.	Fatigue life Max 1e8 cycles, Min 0 Fatigue life found 0 cycle at front side along the length of edge.