Week 5 Bending of iPhone

objective:

For this challenge, simulate the bending of iPhone as per the given cases below

Case 1: Simulate the model as it is given in the video

Case 2: Move the bottom fingers from their defined position to the given position X= 22.5mm & Z= 10mm and obtain the results for the simulation. Also define the S-N curve for the Aluminium Alloy material as per values given below and determine the fatigue life results for the same.

Results and Deliverables

• Obtain the directional deformation for the model
• Factor of Aluminium Alloy NL
• Life of the Aluminium alloy for the case
• Compare the results and present with the conclusion.

CASE1:

• open ansys
• add materials to the library<polyethgelene,alluminium nonlinear,and glass

• go to geometry
• rename parts as display,frame,inside,pushing fingers,fingers
• add material glass for display,alluminium NL FOR FRAME,polythylene for inside frame
• for all fingers except push fingers stiffness behaviour is rigid

• go to contacts

• type of contact for display to frame=bonded,remaining are friction less
• goto connections

• create translate joints for push fingers

• go to mesh<sizing<element size=4mm
  

• go to analysis settings

• go to static structural<insert<fixed support<hide frame<select side faces<apply
  

• go to static structural<insert<displacement

• go to static structural<insert<jointload

case2:

for case 2 create sn curve for alluminium NL alloy.and move the push fingers from their defined position to 22.5 in xdirection,10mm in z direction.

sn curve of allumnium alloy

Results:

Case1:

directional deformation:

Equivalent stress:

Equivalent strain:

Case-2

directional deformation:

Equivalent stress:

Equivalent strain:

safety factor and life of alluminium alloy frame: