How to convince an engineer to buy a Screen protector?!

Drop test for smartphone with and without screen protector using SOLIDWORKS Simulation.

The objective of the Study :
To compare stress results in two cases in the same location (as in the picture) 

The Conditions :
Drop high : 1.5 m from the lowest point. 
Drop angle :45 degrees. 
Screen thickness :1mm.
Screen material : indium tin oxide(ITO). 
Screen Protector thickness : 1mm.
Screen Protector Material :
Polyethylene Terephthalate (PET).
Smartphone case material : Stainless Steel.
Failure Criterion : Maximum Principle Stress.

Results :
Maximum stress without screen protector :
64.4 Mpa. 
Maximum Stress with Screen protector in the same location :
18.7 Mpa. 

Dassault Systèmes

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